Nissan Tiida C11. Instruction — part 472
EC-538
< COMPONENT DIAGNOSIS >
[HR16DE (WITHOUT EURO-OBD)]
P1124, P1126 THROTTLE CONTROL MOTOR RELAY
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 2.
2.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
1.
Disconnect ECM harness connector.
2.
Disconnect IPDM E/R harness connector.
3.
Check the continuity between ECM harness connector and IPDM E/R harness connector.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness connectors.
4.
CHECK FUSE
1.
Disconnect 15A fuse (No. 52) from IPDM E/R.
2.
Check 15A fuse for blown.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Replace 15A fuse.
5.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
1.
Check the voltage between ECM harness connector terminals as follows.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 6.
6.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II
1.
Check the continuity between ECM harness connector and IPDM E/R harness connector.
2.
Also check harness for short to ground and short to power.
(+)
(–)
Voltage
Connector
Terminal
Connector
Terminal
F10
15
E16
108
Battery voltage
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
E46
46
F10
15
Existed
(+)
(–)
Condition
Voltage
Connector
Terminal
Connector
Terminal
F10
2
E16
108
Ignition switch OFF
Approx. 0V
Ignition switch ON
Battery voltage
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
E43
8
F10
2
Existed
P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-539
< COMPONENT DIAGNOSIS >
[HR16DE (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness connectors.
8.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Repair or replace harness or connectors.
EC-540
< COMPONENT DIAGNOSIS >
[HR16DE (WITHOUT EURO-OBD)]
P1128 THROTTLE CONTROL MOTOR
P1128 THROTTLE CONTROL MOTOR
Description
INFOID:0000000001693336
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.
DTC Logic
INFOID:0000000001693337
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 2 seconds.
2.
Start engine and let it idle for 5 seconds.
3.
Check DTC.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000001693338
1.
CHECK GROUND CONNECTION
1.
Turn ignition switch OFF.
2.
Check ground connection E15. Refer to Ground Inspection in
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Disconnect electric throttle control actuator harness connector.
2.
Disconnect ECM harness connector.
3.
Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1128
Throttle control motor
circuit short
ECM detects short in both circuits between
ECM and throttle control motor.
• Harness or connectors
(Throttle control motor circuit is shorted.)
• Electric throttle control actuator
(Throttle control motor)
Electric throttle control actuator
ECM
Continuity
Connector
Terminal
Connector
Terminal
F7
5
F10
1
Not existed
4
Existed
6
1
Existed
4
Not existed
P1128 THROTTLE CONTROL MOTOR
EC-541
< COMPONENT DIAGNOSIS >
[HR16DE (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace.
3.
CHECK THROTTLE CONTROL MOTOR
EC-541, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 5.
4.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness or connectors.
5.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace electric throttle control actuator.
2.
Go to
EC-541, "Special Repair Requirement"
.
>> INSPECTION END
Component Inspection
INFOID:0000000001693339
1.
CHECK THROTTLE CONTROL MOTOR
1.
Disconnect electric throttle control actuator harness connector.
2.
Check resistance between electric throttle control actuator terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace electric throttle control actuator.
2.
Go to
EC-541, "Special Repair Requirement"
.
>> INSPECTION END
Special Repair Requirement
INFOID:0000000001693340
1.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
EC-390, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
.
>> GO TO 2
2.
PERFORM IDLE AIR VOLUME LEARNING
EC-390, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"
>> END
Terminals
Resistance
5 and 6
Approx. 1 - 15
Ω
[at 25
°
C (77
°
F)]
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