Almera Tino V10 (2003 year). Manual — part 109

DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION

EC-763

[QG (WITHOUT EURO-OBD)]

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Wiring Diagram

EBS00QZM

YEC463A

EC-764

[QG (WITHOUT EURO-OBD)]

DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Diagnostic Procedure

EBS00QZN

1.

RETIGHTEN GROUND SCREWS

1.

Turn ignition switch “OFF”.

2.

Loosen and retighten engine ground screws.

>> GO TO 2.

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

3

R

Throttle control motor
power supply

[Ignition switch “ON”]

BATTERY VOLTAGE
(11 - 14V)

4

W

Throttle control motor
(Close)

[Ignition switch “ON”]

●

Engine stopped

●

Shift lever position is “D” (A/T models)

●

Shift lever position is “1st” (M/T models)

●

Accelerator pedal is releasing

0 - 14V

5

B

Throttle control motor
(Open)

[Ignition switch “ON”]

●

Engine stopped

●

Shift lever position is “D” (A/T models)

●

Shift lever position is “1st” (M/T models)

●

Accelerator pedal is depressing

0 - 14V

104

OR

Throttle control motor relay

[Ignition switch “OFF”]

BATTERY VOLTAGE
(11 - 14V)

[Ignition switch “ON”]

0 - 1.0V

PBIB0534E

PBIB0533E

MBIB0095E

DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION

EC-765

[QG (WITHOUT EURO-OBD)]

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2.

CHECK THROTTLE CONTROL MOTOR RELAY SIGNAL CIRCUIT

Check voltage between ECM terminal 3 and ground under the fol-
lowing conditions with CONSULT-II or tester.

OK or NG

OK

>> GO TO 10.

NG

>> GO TO 3.

3.

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT

1.

Turn ignition switch “OFF”.

2.

Disconnect throttle control motor relay.

3.

Check voltage between throttle control motor relay terminals 2, 5
and ground.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.

●

15A fuse

●

Harness for open or short between throttle control motor relay and fuse

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

Ignition switch

Voltage

OFF

Approximately 0V

ON

Battery voltage

(11 - 14V)

MBIB0028E

MBIB0999E

Voltage: Battery voltage

PBIB0575E

EC-766

[QG (WITHOUT EURO-OBD)]

DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION

5.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT

1.

Disconnect ECM harness connector.

2.

Check harness continuity between ECM terminal 3 and throttle control motor relay terminal 3.
Refer to Wiring Diagram.

3.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 7.

NG

>> GO TO 6.

6.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E105, M10

●

Harness connectors M71, F45

●

Harness for open or short between ECM and throttle control motor relay

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

7.

CHECK THROTTLE CONTROL MOTOR RELAY OUTPUT SIGNAL CIRCUIT

1.

Check continuity between ECM terminal 104 and throttle control motor relay terminal 1.
Refer to Wiring Diagram.

2.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 9.

NG

>> GO TO 8.

8.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E106, M11 (LHD models)

●

Harness connectors E145, M80 (RHD models)

●

Harness for open or short between ECM and throttle control motor relay

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

9.

CHECK THROTTLE CONTROL MOTOR RELAY

Refer to

EC-768, "Component Inspection"

.

OK or NG

OK

>> GO TO 13.

NG

>> Replace throttle control motor relay.

Continuity should exist.

Continuity should exist.

DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION

EC-767

[QG (WITHOUT EURO-OBD)]

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10.

CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT

1.

Turn ignition switch “OFF”.

2.

Disconnect electric throttle control actuator harness connector.

3.

Disconnect ECM harness connector.

4.

Check harness continuity between the following terminals.
Refer to Wiring Diagram.

5.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 11.

NG

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

11.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1.

Remove the intake air duct.

2.

Check if foreign matter is caught between the throttle valve and
the housing.

OK or NG

OK

>> GO TO 12.

NG

>> Remove the foreign matter and clean the electric throttle

control actuator inside.

12.

CHECK THROTTLE CONTROL MOTOR

Refer to

EC-768, "Component Inspection"

.

OK or NG

OK

>> GO TO 13.

NG

>> GO TO 14.

13.

CHECK INTERMITTENT INCIDENT

Refer to

EC-644, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

.

OK or NG

OK

>> GO TO 14.

NG

>> Repair or replace harness or connectors.

14.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace the electric throttle control actuator.

2.

Perform

EC-576, "Throttle Valve Closed Position Learning"

.

3.

Perform

EC-576, "Idle Air Volume Learning"

.

>> INSPECTION END

Electric throttle control

actuator terminal

ECM terminal

Continuity

3

4

Should exist

5

Should not exist

6

4

Should not exist

5

Should exist

MBIB0100E

MBIB0107E

EC-768

[QG (WITHOUT EURO-OBD)]

DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION

Component Inspection

EBS00QZO

THROTTLE CONTROL MOTOR RELAY

1.

Apply 12V direct current between relay terminals 1 and 2.

2.

Check continuity between relay terminals 3 and 5.

3.

If NG, replace throttle control motor relay.

THROTTLE CONTROL MOTOR

1.

Disconnect electric throttle control actuator harness connector.

2.

Check resistance between terminals 3 and 6.

3.

If NG, replace electric throttle control actuator and go to next
step.

4.

Perform

EC-576, "Throttle Valve Closed Position Learning"

.

5.

Perform

EC-576, "Idle Air Volume Learning"

.

Remove and Installation

EBS00QZP

ELECTRIC THROTTLE CONTROL ACTUATOR

Refer to

EM-18, "INTAKE MANIFOLD"

.

Conditions

Continuity

12V direct current supply between terminals
1 and 2

Yes

No current supply

No

PBIB0098E

Resistance: Approximately 1 - 15

Ω

[at 25

°

C (77

°

F)]

PBIB0095E

DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY

EC-769

[QG (WITHOUT EURO-OBD)]

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EC

DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY

PFP:16119

Component Description

EBS00QZQ

Power supply for the Throttle Control motor is provided to the ECM via throttle control motor relay. The throttle
control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends
an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition
switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not
provided to the ECM.

CONSULT-II Reference Value in Data Monitor Mode

EBS00QZR

Specification data are reference values.

On Board Diagnosis Logic

EBS00QZS

This self-diagnosis has the one trip detection logic.

FAIL-SAFE MODE

When the malfunction is detected, the ECM enters fail-safe mode and the MI lights up.

DTC Confirmation Procedure

EBS00QZT

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.

PROCEDURE FOR DTC P1124

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

With CONSULT-II

1.

Turn ignition switch “ON” and wait at least 1 second.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

If DTC is detected, go to

EC-772, "Diagnostic Procedure"

.

MONITOR ITEM

CONDITION

SPECIFICATION

THRTL RELAY

●

Ignition switch: ON

ON

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1124
1124

Throttle control motor
relay circuit short

ECM detect the throttle control motor relay
is stuck ON.

●

Harness or connectors
(Throttle control motor relay circuit is shorted.)

●

Throttle control motor relay

P1126
1126

Throttle control motor
relay circuit open

ECM detects a voltage of power source for
throttle control motor is excessively low.
This self-diagnosis has the one trip
detection logic.

●

Harness or connectors
(Throttle control motor relay circuit is open.)

●

Throttle control motor relay

Engine operating condition in fail-safe mode

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return
spring.

SEF058Y

EC-770

[QG (WITHOUT EURO-OBD)]

DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY

Without CONSULT-II

1.

Turn ignition switch “ON” and wait at least 1 second.

2.

Turn ignition switch “OFF”, wait at least 10 seconds and then turn “ON”.

3.

If DTC is detected, go to

EC-772, "Diagnostic Procedure"

.

PROCEDURE FOR DTC P1126

With CONSULT-II

1.

Turn ignition switch “ON” and wait at least 2 seconds.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Start engine and let it idle for 5 seconds.

4.

If DTC is detected, go to

EC-772, "Diagnostic Procedure"

.

Without CONSULT-II

1.

Turn ignition switch “ON” and wait at least 2 second.

2.

Start engine and let it idle for 5 seconds.

3.

Turn ignition switch “OFF”, wait at least 10 seconds and then turn “ON”.

4.

Perform “Diagnostic Test Mode II (Self-diagnostic results)” with ECM.

5.

If DTC is detected, go to

EC-772, "Diagnostic Procedure"

.

SEF058Y

DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY

EC-771

[QG (WITHOUT EURO-OBD)]

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Wiring Diagram

EBS00QZU

YEC464A

EC-772

[QG (WITHOUT EURO-OBD)]

DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

Diagnostic Procedure

EBS00QZV

1.

CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT

1.

Turn ignition switch “OFF”.

2.

Disconnect throttle control motor relay.

3.

Check voltage between throttle control motor relay terminals 2, 5
and ground.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2.

DETECT MALFUNCTIONING PART

Check the following.

●

15A fuse

●

Harness for open or short between throttle control motor relay and fuse

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

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

104

OR

Throttle control motor relay

[Ignition switch “OFF”]

BATTERY VOLTAGE
(11 - 14V)

[Ignition switch “ON”]

0 - 1.0V

3

R

Throttle control motor
power supply

[Ignition switch “ON”]

BATTERY VOLTAGE
(11 - 14V)

MBIB0999E

Voltage: Battery voltage

PBIB0575E

DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY

EC-773

[QG (WITHOUT EURO-OBD)]

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EC

3.

CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT

1.

Disconnect ECM harness connector.

2.

Check harness continuity between ECM terminal 3 and throttle control motor relay terminal 3.
Refer to Wiring Diagram.

3.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E105, M10

●

Harness connectors M71, F45

●

Harness for open or short between ECM and throttle control motor relay

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

5.

CHECK THROTTLE CONTROL MOTOR RELAY OUTPUT SIGNAL CIRCUIT

1.

Check continuity between ECM terminal 104 and throttle control motor relay terminal 1.
Refer to Wiring Diagram.

2.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 7.

NG

>> GO TO 6.

6.

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors E106, M11 (LHD models)

●

Harness connectors E145, M80 (RHD models)

●

Harness for open or short between ECM and throttle control motor relay

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

7.

CHECK THROTTLE CONTROL MOTOR RELAY

Refer to

EC-774, "Component Inspection"

.

OK or NG

OK

>> GO TO 8.

NG

>> Replace throttle control motor relay.

8.

CHECK INTERMITTENT INCIDENT

Refer to

EC-644, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

.

>> INSPECTION END

Continuity should exist.

Continuity should exist.

EC-774

[QG (WITHOUT EURO-OBD)]

DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY

Component Inspection

EBS00QZW

THROTTLE CONTROL MOTOR RELAY

1.

Apply 12V direct current between relay terminals 1 and 2.

2.

Check continuity between relay terminals 3 and 5.

3.

If NG, replace throttle control motor relay.

Conditions

Continuity

12V direct current supply
between terminals 1 and 2

Yes

No current supply

No

PBIB0098E

DTC P1128 THROTTLE CONTROL MOTOR

EC-775

[QG (WITHOUT EURO-OBD)]

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EC

DTC P1128 THROTTLE CONTROL MOTOR

PFP:16119

Component Description

EBS00QZX

The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feed-
back to the ECM to control the throttle control motor to make the throttle valve opening angle properly in
response to driving condition.

On Board Diagnosis Logic

EBS00QZY

This self-diagnosis has the one trip detection logic.

FAIL-SAFE MODE

When the malfunction is detected, the ECM enters fail-safe mode and the MI lights up.

DTC Confirmation Procedure

EBS00QZZ

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch “OFF” and wait at
least 10 seconds before conducting the next test.

WITH CONSULT-II

1.

Turn ignition switch “ON” and wait at least 2 seconds.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Start engine and let it idle for 5 seconds.

4.

If DTC is detected, go to

EC-777, "Diagnostic Procedure"

.

WITHOUT CONSULT-II

1.

Turn ignition switch “ON” and wait at least 2 second.

2.

Start engine and let it idle for 5 seconds.

3.

Turn ignition switch “OFF”, wait at least 10 seconds and then turn “ON”.

4.

Perform “Diagnostic Test Mode II (Self-diagnostic results)” with ECM.

5.

If DTC is detected, go to

EC-777, "Diagnostic Procedure"

.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1128
1128

Throttle control motor
circuit short

ECM detects short both circuits between ECM
and throttle control motor.

●

Harness or connectors
(Throttle control motor circuit is shorted.)

●

Electric throttle control actuator
(Throttle control motor)

Engine operating condition in fail-safe mode

ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return
spring.

SEF058Y

EC-776

[QG (WITHOUT EURO-OBD)]

DTC P1128 THROTTLE CONTROL MOTOR

Wiring Diagram

EBS00R00

YEC465A

DTC P1128 THROTTLE CONTROL MOTOR

EC-777

[QG (WITHOUT EURO-OBD)]

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EC

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Diagnostic Procedure

EBS00R01

1.

RETIGHTEN GROUND SCREWS

1.

Turn ignition switch “OFF”.

2.

Loosen and retighten engine ground screws.

>> GO TO 2.

TER-

MINAL

NO.

WIRE

COLOR

ITEM

CONDITION

DATA (DC Voltage)

4

W

Throttle control motor
(Close)

[Ignition switch “ON”]

●

Engine stopped

●

Shift lever position is “D” (A/T models)

●

Shift lever position is “1st” (M/T models)

●

Accelerator pedal is releasing

0 - 14V

5

B

Throttle control motor
(Open)

[Ignition switch “ON”]

●

Engine stopped

●

Shift lever position is “D” (A/T models)

●

Shift lever position is “1st” (M/T models)

●

Accelerator pedal is depressing

0 - 14V

PBIB0534E

PBIB0533E

MBIB0095E

EC-778

[QG (WITHOUT EURO-OBD)]

DTC P1128 THROTTLE CONTROL MOTOR

2.

CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT

1.

Turn ignition switch “OFF”.

2.

Disconnect electric throttle control actuator harness connector.

3.

Disconnect ECM harness connector.

4.

Check harness continuity between the following terminals.
Refer to Wiring Diagram.

5.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 3.

NG

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

3.

CHECK THROTTLE CONTROL MOTOR

Refer to

EC-778, "Component Inspection"

.

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 5.

4.

CHECK INTERMITTENT INCIDENT

Refer to

EC-644, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace harness or connectors.

5.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace the electric throttle control actuator.

2.

Perform

EC-576, "Throttle Valve Closed Position Learning"

.

3.

Perform

EC-576, "Idle Air Volume Learning"

.

>> INSPECTION END

Component Inspection

EBS00R02

THROTTLE CONTROL MOTOR

1.

Disconnect electric throttle control actuator harness connector.

2.

Check resistance between terminals 3 and 6.

3.

If NG, replace electric throttle control actuator and go to next
step.

4.

Perform

EC-576, "Throttle Valve Closed Position Learning"

.

5.

Perform

EC-576, "Idle Air Volume Learning"

.

Electric throttle control

actuator terminal

ECM terminal

Continuity

3

4

Should exist

5

Should not exist

6

4

Should not exist

5

Should exist

MBIB0100E

Resistance: Approximately 1 - 15

Ω

[at 25

°

C (77

°

F)]

PBIB0095E