Nissan Altima L32. Instruction — part 572

P1554 BATTERY CURRENT SENSOR

EC-1409

< COMPONENT DIAGNOSIS >

[VQ35DE]

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2. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair open circuit, short to ground or short to power in harness or connectors.

5.

CHECK BATTERY CURRENT SENSOR

Refer to

EC-1405, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace battery negative cable assembly.

6.

CHECK INTERMITTENT INCIDENT

Refer to

GI-42, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000004362272

1.

CHECK BATTERY CURRENT SENSOR

1. Turn ignition switch OFF.

2. Reconnect harness connectors disconnected.

3. Disconnect battery negative cable (1).
-

: Vehicle front

-

: To body ground

4. Install jumper cable (A) between battery negative terminal and

body ground.

5. Turn ignition switch ON.

6. Check the voltage between ECM harness connector terminals

under the following conditions.

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

PG-3, "How to Handle Battery"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace battery negative cable assembly.

Battery current sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

F5

3

F13

42

Existed

ALBIA0610ZZ

ECM

Voltage (V)

Connector

+

–

Terminal

Terminal

F13

42

(Battery current

sensor signal)

44

(Sensor ground)

Approx. 2.5

JMBIA1879ZZ

EC-1410

< COMPONENT DIAGNOSIS >

[VQ35DE]

P1564 ASCD STEERING SWITCH

P1564 ASCD STEERING SWITCH

Description

INFOID:0000000004362273

ASCD steering switch has variant values of electrical resistance for each button. ECM reads voltage variation

of switch, and determines which button is operated.

Refer to

EC-1090, "System Diagram"

for the ASCD function.

DTC Logic

INFOID:0000000004362274

DTC DETECTION LOGIC

NOTE:

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

EC-1376, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-

ing 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 and wait at least 10 seconds.

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

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

4. Press RESUME/ACCELERATE switch for at least 10 seconds, then release it and wait at least 10 sec-

onds.

5. Press SET/COAST switch for at least 10 seconds, then release it and wait at least 10 seconds.

6. Check DTC.
Is DTC detected?

YES

>> Go to

EC-1410, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000004362275

1.

CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connection E9. Refer to Ground Inspection in

GI-45, "Circuit Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK ASCD STEERING SWITCH CIRCUIT

With CONSULT-III

DTC No.

Trouble diagnosis

name

DTC detecting condition

Possible cause

P1564

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

(The switch circuit is open or shorted.)

• ASCD steering switch
• ECM

P1564 ASCD STEERING SWITCH

EC-1411

< COMPONENT DIAGNOSIS >

[VQ35DE]

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1. Turn ignition switch ON.

2. Select “MAIN SW”, “CANCEL SW”, “RESUME/ACC SW” and “SET SW” in “DATA MONITOR” mode with

CONSULT-III.

3. Check each item indication under the following conditions.

Without CONSULT-III

1. Turn ignition switch ON.

2. Check the voltage between ECM harness connector terminals

under the following conditions.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 3.

3.

CHECK ASCD STEERING SWITCH GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Disconnect combination switch harness connector.

4. Check the continuity between combination switch and ECM harness connector.

5. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.

• Harness connectors E30, M1

• Combination switch (spiral cable)

Monitor item

Condition

Indication

MAIN SW

MAIN switch

Pressed

ON

Released

OFF

CANCEL SW

CANCEL switch

Pressed

ON

Released

OFF

RESUME/ACC SW

RESUME/ACCEL-
ERATE switch

Pressed

ON

Released

OFF

SET SW

SET/COAST switch

Pressed

ON

Released

OFF

ECM

Condition

Voltage (V)

Connector

+

–

Terminal

Terminal

E10

85

(ASCD

steering

switch

signal)

92

(ASCD

steering

switch

ground)

MAIN switch: Pressed

Approx. 0

CANCEL switch: Pressed

Approx. 1

SET/COAST switch:
Pressed

Approx. 2

RESUME/ACCELERATE
switch: Pressed

Approx. 3

All ASCD steering switches:
Released

Approx. 4

JMBIA1880ZZ

Combination switch

ECM

Continuity

Terminal

Connector

Terminal

16

E10

92

Existed

EC-1412

< COMPONENT DIAGNOSIS >

[VQ35DE]

P1564 ASCD STEERING SWITCH

• Harness for open and short between ECM and combination switch

>> Repair open circuit, short to ground or short to power in harness or connectors.

5.

CHECK ASCD STEERING SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Check the continuity between combination switch and ECM harness connector.

2. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 7.

NO

>> GO TO 6.

6.

DETECT MALFUNCTIONING PART

Check the following.

• Harness connectors E30, M1

• Combination switch (spiral cable)

• Harness for open and short between ECM and combination switch

>> Repair open circuit, short to ground or short to power in harness or connectors.

7.

CHECK ASCD STEERING SWITCH

Refer to

EC-1412, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace ASCD steering switch.

8.

CHECK INTERMITTENT INCIDENT

Refer to

GI-42, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000004362276

1.

CHECK ASCD STEERING SWITCH

1. Turn ignition switch OFF.

2. Disconnect combination switch (spiral cable) harness connector.

3. Check resistance between combination switch harness connec-

tor terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace ASCD steering switch

Combination switch

ECM

Continuity

Terminal

Connector

Terminal

13

E10

85

Existed

Combination switch

Condition

Resistance (

Ω)

Connector

Terminals

M88

13 and 16

MAIN switch: Pressed

Approx. 0

CANCEL switch: Pressed

Approx. 250

SET/COAST switch: Pressed

Approx. 660

RESUME/ACCELERATE switch:
Pressed

Approx. 1,480

All ASCD steering switches: Released

Approx. 4,000

JMBIA1625ZZ