Nissan Tiida C11. Instruction — part 394
EC-226
< COMPONENT DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
P1122 ELECTRIC THROTTLE CONTROL FUNCTION
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> GO TO 8.
8.
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.
9.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace IPDM E/R.
NO
>> Repair or replace harness or connectors.
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 the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
5.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Repair or replace.
11.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1.
Remove the intake air duct.
2.
Check if foreign matter is caught between the throttle valve (1)
and the housing.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> Remove the foreign matter and clean the electric throttle
control actuator inside.
12.
CHECK THROTTLE CONTROL MOTOR
EC-227, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> GO TO 14.
Electric throttle control actuator
ECM
Continuity
Connector
Terminal
Connector
Terminal
F7
5
F10
1
Not existed
4
Existed
6
1
Existed
4
Not existed
2.
Electric throttle control actuator
JMBIA0447ZZ
P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-227
< COMPONENT DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
13.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> GO TO 14.
NO
>> Repair or replace harness or connectors.
14.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace malfunction electric throttle control actuator.
2.
Go to
EC-227, "Special Repair Requirement"
.
>> INSPECTION END
Component Inspection
INFOID:0000000001670994
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-227, "Special Repair Requirement"
.
>> INSPECTION END
Special Repair Requirement
INFOID:0000000001670995
1.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
EC-27, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
>> GO TO 2.
2.
PERFORM IDLE AIR VOLUME LEARNING
EC-27, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"
>> END
Terminals
Resistance
5 and 6
Approx. 1 - 15
Ω
[at 25
°
C (77
°
F)]
EC-228
< COMPONENT DIAGNOSIS >
[HR16DE (WITH EURO-OBD)]
P1124, P1126 THROTTLE CONTROL MOTOR RELAY
P1124, P1126 THROTTLE CONTROL MOTOR RELAY
Description
INFOID:0000000001670996
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.
DTC Logic
INFOID:0000000001670997
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8V.
Witch DTC is detected?
P1126 >> GO TO 2.
P1124 >> GO TO 3.
2.
PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P1126
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
3.
PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P1124
1.
Turn ignition switch ON and wait at least 1 second.
2.
Check DTC.
Is DTC detected?
YES
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000001670998
1.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
1.
Turn ignition switch OFF.
2.
Check the voltage between ECM harness connector terminals as follows.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1124
Throttle control motor
relay circuit open
ECM detects a voltage of power source for
throttle control motor is excessively low.
• Harness or connectors
(Throttle control motor relay circuit is
open)
• Throttle control motor relay
P1126
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
P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-229
< COMPONENT DIAGNOSIS >
[HR16DE (WITH 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 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
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