Juke F15 (2012 year). Service Repair Manual — part 133

P1554 BATTERY CURRENT SENSOR

EC-337

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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P1554 BATTERY CURRENT SENSOR

DTC Logic

INFOID:0000000006547156

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM COMPONENT FUNCTION CHECK

Perform component function check. Refer to

EC-337, "Component Function Check"

.

NOTE:
Use component function check to check the overall function of the battery current sensor circuit. During this
check, a 1st trip DTC might not be confirmed.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to

EC-338, "Diagnosis Procedure"

.

Component Function Check

INFOID:0000000006547157

1.

PRECONDITIONING

TESTING CONDITION:
• Before performing the following procedure, confirm that battery voltage is more than 12.8 V at idle.
• Before performing the following procedure, confirm that all load switches and A/C switch are turned

OFF.

>> GO TO 2.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1554

BAT CURRENT SENSOR
(Battery current sensor perfor-
mance)

The output voltage of the battery current
sensor is lower than the specified value
while the battery voltage is high enough.

• Harness or connectors

(Battery current sensor circuit is open
or shorted.)
(Camshaft position sensor circuit is
open or shorted)
(Fuel rail pressure sensor circuit is
open or shorted.)
(G sensor circuit is open or shorted.)
(Exhaust valve timing control position
sensor circuit is open or shorted.)
(Accelerator pedal position sensor 2
circuit is open or shorted.)
(Atmospheric pressure sensor circuit is
open or shorted.)
(Turbocharger boost sensor circuit is
open or shorted.)
(Engine oil pressure sensor circuit is
open or shorted.)

• Battery current sensor
• Camshaft position sensor
• Camshaft (Intake)
• Starter motor
• Starting system circuit
• Dead (Weak) battery
• Fuel rail pressure sensor
• G sensor
• Exhaust valve timing control position

sensor

• Accelerator pedal position sensor 2
• Atmospheric pressure sensor
• Turbocharger boost sensor
• Engine oil pressure sensor

EC-338

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

P1554 BATTERY CURRENT SENSOR

2.

PERFORM COMPONENT FUNCTION CHECK

With CONSULT-III

1.

Start engine and let it idle.

2.

Select “BAT CUR SEN” in “DATA MONITOR” mode of “ENGINE” using CONSULT-III.

3.

Check “BAT CUR SEN” indication for 10 seconds.
“BAT CUR SEN” should be above 2,300 mV at least once.

Without CONSULT-III

1.

Start engine and let it idle.

2.

Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to

EC-338, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000006635004

1.

CHECK BATTERY CURRENT SENSOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect battery current sensor harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between battery current sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness connector for short to power and short to ground, between the following terminals.

ECM

Voltage

Connector

+

-

Terminal

F26

80

87

Above 2.3 V at least once

+

-

Voltage

(Approx.)

Battery current sensor

Connector

Terminal

F52

1

Ground

5 V

ECM

Sensor

Connector

Terminal

Name

Connector

Terminal

F25

39

FRP sensor

F5

1

EOP sensor

F43

3

Atmospheric pressure sensor

F76

1

Turbocharger boost sensor

F75

1

F26

68

Battery current sensor

F52

1

G sensor

B32

3

72

CMP sensor

F109

1

EVT control position sensor

F110

1

E18

118

APP sensor 2

E101

*1

M203

*2

5

P1554 BATTERY CURRENT SENSOR

EC-339

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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*1: LHD models or RHD with CVT models

*2: RHD with M/T models

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK BATTERY CURRENT SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between battery current sensor harness connector and ECM harness connector.

4.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK BATTERY CURRENT SENSOR INPUT SIGNAL CIRCUIT

1.

Check the continuity between battery current sensor harness connector and ECM harness connector.

2.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts

5.

CHECK BATTERY CURRENT SENSOR

Check the battery current sensor. Refer to

EC-330, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace battery negative cable assembly. Refer to

PG-125, "Exploded View"

.

Component Inspection

INFOID:0000000006547159

1.

CHECK BATTERY CURRENT SENSOR

1.

Turn ignition switch OFF.

2.

Reconnect harness connectors disconnected.

3.

Disconnect battery negative cable.

+

−

Continuity

Battery current sensor

ECM

Connector

Terminal

Connector

Terminal

F52

3

F26

87

Existed

+

−

Continuity

Battery current sensor

ECM

Connector

Terminal

Connector

Terminal

F52

4

F26

80

Existed

EC-340

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

P1554 BATTERY CURRENT SENSOR

4.

Install jumper cable between battery negative terminal and body
ground.

5.

Turn ignition switch ON.

6.

Check the voltage between ECM harness connector and
ground.

Before measuring the terminal voltage, confirm that the battery is fully charged. Refer to

PG-111, "How to Handle Battery"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace battery negative cable assembly. Refer to

PG-125, "Exploded View"

.

JPBIA3286ZZ

ECM

Voltage

(Approx.)

Connector

+

-

Terminal

F26

80

87

2.5 V

P1556, P1557 BATTERY TEMPERATURE SENSOR

EC-341

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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P1556, P1557 BATTERY TEMPERATURE SENSOR

DTC Logic

INFOID:0000000006598907

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is 10 V or more at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start the engine and let it idle at least 10 seconds.

2.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to

EC-341, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006598908

1.

CHECK BATTERY TEMPERATURE SENSOR POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect battery current sensor harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between battery current sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK BATTERY TEMPERATURE SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between battery current sensor harness connector and ECM harness connector.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1556

BAT TMP SEN/CIRC
(Battery temperature sensor cir-
cuit low input)

Signal voltage from Battery temperature
sensor remains 0.16V or less for 5 sec-
onds or more.

• Harness or connectors

[Battery current sensor (Battery tem-
perature sensor) circuit is shorted.]

• Battery current sensor (Battery tem-

perature sensor)

P1557

BAT TMP SEN/CIRC
(Battery temperature sensor cir-
cuit high input)

Signal voltage from Battery temperature
sensor remains 4.84V or more for 5 sec-
onds or more.

+

−

Voltage

(Approx.)

Battery current sensor

Connector

Terminal

F52

2

Ground

5 V

EC-342

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

P1556, P1557 BATTERY TEMPERATURE SENSOR

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK BATTERY TEMPERATURE SENSOR GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between battery current sensor harness connector and ECM harness connector.

4.

Also check harness for short to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK BATTERY TEMPERATURE SENSOR

Check the battery temperature sensor. Refer to

EC-342, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace battery negative cable assembly. Refer to

PG-125, "Exploded View"

.

Component Inspection

INFOID:0000000006598909

1.

CHECK BATTERY TEMPERATURE SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect battery current sensor.

3.

Check the resistance between battery current sensor connector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace battery negative cable assembly. Refer to

PG-125, "Exploded View"

.

+

−

Continuity

Battery current sensor

ECM

Connector

Terminal

Connector

Terminal

F52

2

F26

79

Existed

+

−

Continuity

Battery current sensor

ECM

Connector

Terminal

Connector

Terminal

F52

3

F26

87

Existed

Battery current sensor

Resistance

+

−

Terminal

2

3

Continuity with the resistance value 100

Ω

or more

P1564 ASCD STEERING SWITCH

EC-343

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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P1564 ASCD STEERING SWITCH

DTC Logic

INFOID:0000000006547161

DTC DETECTION LOGIC

NOTE:
If DTC P1564 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer to

EC-302, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Wait at least 10 seconds.

3.

Press MAIN switch for at least 10 seconds, then release it and wait at least 10 seconds.

4.

Press CANCEL switch for at least 10 seconds, then release it and wait at least 10 seconds.

5.

Press RES/+ switch for at least 10 seconds, then release it and wait at least 10 seconds.

6.

Press SET/

−

switch for at least 10 seconds, then release it and wait at least 10 seconds.

7.

Check DTC.

Is DTC detected?

YES

>> Proceed to

EC-343, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006547162

1.

CHECK ASCD STEERING SWITCH CIRCUIT

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “CANCEL SW”, “RESUME/ACC SW” and “SET SW” in “DATA MONITOR” mode of “ENGINE”
using CONSULT-III.

3.

Check each item indication as per the following conditions.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P1564

ASCD SW
(ASCD steering switch)

• An excessively high voltage signal from the

ASCD steering switch is sent to ECM.

• ECM detects that input signal from the

ASCD steering switch is out of the specified
range.

• ECM detects that the ASCD steering switch

is stuck ON.

• Harness or connectors

(ASCD steering switch circuit is open
or shorted.)

• ASCD steering switch
• ECM

Monitor item

Condition

Indication

CANCEL SW

CANCEL switch

Pressed

ON

Released

OFF

RESUME/ACC
SW

RES/+ switch

Pressed

ON

Released

OFF

EC-344

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

P1564 ASCD STEERING SWITCH

Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector terminals.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> GO TO 2.

2.

CHECK ASCD STEERING SWITCH GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Disconnect combination switch (spiral cable) harness connector.

4.

Check the continuity between combination switch (spiral cable) and ECM harness connector.

5.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT

1.

Check the continuity between ECM harness connector and combination switch.

2.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK ASCD STEERING SWITCH

Refer to

EC-345, "Component Inspection"

.

Is the inspection result normal?

SET SW

SET/

−

switch

Pressed

ON

Released

OFF

Monitor item

Condition

Indication

ECM

Condition

Voltage

(Approx.)

Connector

+

-

Terminal

E18

110

111

CANCEL switch: Pressed

1 V

SET/- switch: Pressed

2 V

RES/+ switch: Pressed

3 V

All ASCD steering switches: Released

4 V

+

−

Continuity

Combination switch

(Spiral cable)

ECM

Connector

Terminal

Connector

Terminal

M33

32

E18

111

Existed

+

−

Continuity

Combination switch

(Spiral cable)

ECM

Connector

Terminal

Connector

Terminal

M33

25

E18

110

Existed

P1564 ASCD STEERING SWITCH

EC-345

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace ASCD steering switch. Refer to

ST-9, "Exploded View"

.

Component Inspection

INFOID:0000000006547163

1.

CHECK ASCD STEERING SWITCH-I

1.

Disconnect combination switch (spiral cable) harness connector.

2.

Check the continuity between combination switch harness connector terminals as per the following condi-
tions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ASCD steering switch. Refer to

ST-9, "Exploded View"

.

2.

CHECK ASCD STEERING SWITCH

1.

Disconnect combination switch (spiral cable) harness connector.

2.

Check the resistance between combination switch harness connector terminals as per the following condi-
tions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ASCD steering switch. Refer to

ST-9, "Exploded View"

.

Combination switch

(Spiral cable)

Condition

Continuity

Connector

+

−

Terminals

M303

35

36

Speed limiter
MAIN switch

Pressed

Existed

Released

Not existed

37

ASCD MAIN
switch

Pressed

Existed

Released

Not existed

Combination switch

(Spiral cable)

Condition

Resistance

(Approx.)

Connector

+

−

Terminals

M302

13

16

CANCEL switch: Pressed

250

Ω

SET/

−

switch: Pressed

660

Ω

RES/+ switch: Pressed

1,480

Ω

All ASCD steering switches: Released

4,000

Ω

EC-346

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

P1572 ASCD BRAKE SWITCH

P1572 ASCD BRAKE SWITCH

DTC Logic

INFOID:0000000006547165

DTC DETECTION LOGIC

NOTE:
• If DTC P1572 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer

to

EC-302, "DTC Logic"

.

• This self-diagnosis has the one trip detection logic. When malfunction A is detected, DTC is not

stored in ECM memory. And in that case, 1st trip DTC and 1st trip freeze frame data are displayed.
1st trip DTC is erased when ignition switch OFF. And even when malfunction A is detected in two
consecutive trips, DTC is not stored in ECM memory.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

NOTE:
Procedure for malfunction B is not described here. It takes extremely long time to complete procedure for mal-
function B. By performing procedure for malfunction A, the incident that causes malfunction B can be
detected.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A

1.

Start engine.

2.

Press MAIN switch and make sure that CRUISE indicator is displayed in combination meter.

3.

Drive the vehicle for at least 5 consecutive seconds as per the following conditions.

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.

4.

Check DTC.

Is DTC detected?

YES

>> Proceed to

EC-352, "Diagnosis Procedure"

.

NO

>> GO TO 3.

DTC No.

Trouble diagnosis

name

(Trouble diagnosis

content)

DTC detecting condition

Possible cause

P1572

ASCD BRAKE SW
(ASCD brake
switch)

A)

When the vehicle speed is above 30 km/h
(19 MPH), ON signals from the stop lamp
switch and the brake pedal position switch
are sent to the ECM at the same time.

• Harness or connectors

(Stop lamp switch circuit is shorted.)
(Brake pedal position switch circuit is shorted.)

• Stop lamp switch
• Brake pedal position switch
• Incorrect stop lamp switch installation
• Incorrect brake pedal position switch installa-

tion

• ECM

B)

Brake pedal position switch signal is not
sent to ECM for extremely long time while
the vehicle is driving.

Vehicle speed

More than 30 km/h (19 mph)

Selector lever

Suitable position

P1572 ASCD BRAKE SWITCH

EC-347

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

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3.

PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B

1.

Drive the vehicle for at least 5 consecutive seconds as per the following conditions.

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to

EC-352, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006599040

1.

CHECK OVERALL FUNCTION-I

With CONSULT-III

1.

Turn ignition switch ON.

2.

Select “BRAKE SW1” in “DATA MONITOR” mode of “ENGINE” using CONSULT-III.

3.

Check “BRAKE SW1” indication as per the following conditions.

Without CONSULT-III

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector terminals as per the following.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK OVERALL FUNCTION-II

With CONSULT-III

Select “BRAKE SW2” and check indication as per the following conditions.

Without CONSULT-III

Check the voltage between ECM harness connector terminals as per the following conditions.

Vehicle speed

More than 30 km/h (19 mph)

Selector lever

Suitable position

Driving location

Depress the brake pedal for more
than five seconds so as not to come
off from the above-mentioned vehi-
cle speed.

Monitor item

Condition

Indication

BRAKE SW1

Brake pedal

Slightly depressed

OFF

Fully released

ON

ECM

Condition

Voltage

(Approx.)

Connector

+

–

Terminal

E18

116

127

Brake pedal

Slightly depressed

0 V

Fully released

Battery voltage

Monitor item

Condition

Indication

BRAKE SW2

Brake pedal

Slightly depressed

ON

Fully released

OFF

EC-348

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

P1572 ASCD BRAKE SWITCH

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> GO TO 6.

3.

CHECK BRAKE PEDAL POSITION SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect brake pedal position switch harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between brake pedal position switch harness connector and ground.

*1: LHD models or RHD with CVT models

*2: RHD with M/T models

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Perform the trouble diagnosis for power supply circuit.

4.

CHECK BRAKE PEDAL POSITION SWITCH INPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between brake pedal position switch harness connector and ECM harness connec-
tor.

*1: LHD models or RHD with CVT models

*2: RHD with M/T models

4.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK BRAKE PEDAL POSITION SWITCH

Check the brake pedal position switch. Refer to

EC-426, "Component Inspection (Brake Pedal Position

Switch)"

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace brake pedal position switch. Refer to

BR-20, "Exploded View"

(LHD) or

BR-88,

"Exploded View"

(RHD).

ECM

Condition

Voltage

(Approx.)

Connector

+

–

Terminal

E18

115

127

Brake pedal

Slightly depressed

Battery voltage

Fully released

0 V

+

−

Voltage

Brake pedal position switch

Connector

Terminal

E112

*1

M202

*2

1

Ground

Battery voltage

+

−

Continuity

Brake pedal position switch

ECM

Connector

Terminal

Connector

Terminal

E112

*1

M202

*2

2

E18

116

Existed

P1572 ASCD BRAKE SWITCH

EC-349

< DTC/CIRCUIT DIAGNOSIS >

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6.

CHECK STOP LAMP SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect stop lamp switch harness connector.

3.

Check the voltage between stop lamp switch harness connector and ground.

*1: CVT models

*2: LHD with M/T models

*3: RHD with M/T models

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Perform the trouble diagnosis for power supply circuit.

7.

CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT

1.

Disconnect ECM harness connector.

2.

Check the continuity between stop lamp switch harness connector and ECM harness connector.

*1: CVT models

*2: LHD with M/T models

*3: RHD with M/T models

3.

Also check harness for short to ground and to power.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Repair or replace error-detected parts.

8.

CHECK STOP LAMP SWITCH

Check the stop lamp switch. Refer to

EC-350, "Component Inspection (Stop Lamp Switch)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace stop lamp switch. Refer to

BR-20, "Exploded View"

(LHD) or

BR-88, "Exploded View"

(RHD).

Component Inspection (Brake Pedal Position Switch)

INFOID:0000000006547167

1.

CHECK BRAKE PEDAL POSITION SWITCH-I

1.

Turn ignition switch OFF.

2.

Disconnect brake pedal position harness connector.

3.

Check the continuity between brake pedal position switch terminals as per the following conditions.

+

−

Voltage

Stop lamp switch

Connector

Terminal

E102

*1

E118

*2

M205

*3

1

Ground

Battery voltage

+

−

Continuity

Stop lamp switch

ECM

Connector

Terminal

Connector

Terminal

E102

*1

E118

*2

M205

*3

2

E18

115

Existed

EC-350

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

P1572 ASCD BRAKE SWITCH

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK BRAKE PEDAL POSITION SWITCH-II

1.

Adjust brake pedal position switch installation. Refer to

BR-9, "Inspection and Adjustment"

(LHD) or

BR-

77, "Inspection and Adjustment"

(RHD).

2.

Check the continuity between brake pedal position switch terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace brake pedal position switch. Refer to

BR-20, "Exploded View"

(LHD) or

BR-88,

"Exploded View"

(RHD).

Component Inspection (Stop Lamp Switch)

INFOID:0000000006547169

1.

CHECK STOP LAMP SWITCH-I

1.

Turn ignition switch OFF.

2.

Disconnect stop lamp switch harness connector.

3.

Check the continuity between stop lamp switch terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> GO TO 2.

2.

CHECK STOP LAMP SWITCH-II

1.

Adjust stop lamp switch installation. Refer to

BR-9, "Inspection and Adjustment"

(LHD) or

BR-77, "Inspec-

tion and Adjustment"

(RHD).

2.

Check the continuity between stop lamp switch terminals as per the following conditions.

Brake pedal position switch

Condition

Continuity

+

-

Terminals

1

2

Brake pedal

Fully released

Existed

Slightly de-
pressed

Not existed

Brake pedal position switch

Condition

Continuity

+

-

Terminals

1

2

Brake pedal

Fully released

Existed

Slightly de-
pressed

Not existed

Stop lamp switch

Condition

Continuity

+

-

Terminals

1

2

Brake pedal

Fully released

Not existed

Slightly de-
pressed

Existed

P1572 ASCD BRAKE SWITCH

EC-351

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace stop lamp switch. Refer to

BR-20, "Exploded View"

(LHD) or

BR-88, "Exploded View"

(RHD).

Stop lamp switch

Condition

Continuity

+

-

Terminals

1

2

Brake pedal

Fully released

Not existed

Slightly de-
pressed

Existed

EC-352

< DTC/CIRCUIT DIAGNOSIS >

[MR16DDT ]

P1574 ASCD VEHICLE SPEED SENSOR

P1574 ASCD VEHICLE SPEED SENSOR

Description

INFOID:0000000006547170

The ECM receives two vehicle speed sensor signals via CAN communication line. One is sent from combina-
tion meter, and the other is from TCM (Transmission control module). The ECM uses these signals for ASCD
control. Refer to

EC-64, "AUTOMATIC SPEED CONTROL DEVICE (ASCD) : System Description"

for ASCD

functions.

DTC Logic

INFOID:0000000006547171

DTC DETECTION LOGIC

NOTE:
• If DTC P1574 is displayed with DTC U1001, first perform the trouble diagnosis for DTC U1001. Refer

to

EC-161, "DTC Logic"

.

• If DTC P1574 is displayed with DTC P0500, first perform the trouble diagnosis for DTC P0500. Refer

to

EC-286, "DTC Logic"

• If DTC P1574 is displayed with DTC P0605, first perform the trouble diagnosis for DTC P0605. Refer

to

EC-302, "DTC Logic"

• If DTC P1574 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer

to

EC-304, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine.

2.

Drive the vehicle at more than 40 km/h (25 MPH).

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.

3.

Check DTC.

Is DTC detected?

YES

>> Proceed to

EC-352, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000006547172

1.

CHECK DTC WITH TCM

Check DTC with TCM. Refer to

TM-159, "CONSULT-III Function (TRANSMISSION)"

.

DTC No.

Trouble diagnosis

name

(Trouble diagnosis

content)

DTC detecting condition

Possible cause

P1574

ASCD VHL SPD SEN
(ASCD vehicle speed
sensor)

ECM detects a difference between two vehicle
speed signals is out of the specified range.

• Harness or connectors

(CAN communication line is open or shorted.)

• ABS actuator and electric unit (control unit)
• TCM
• ECM