Infiniti M35/M45 Y50. Manual — part 713
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-1325
[VK45DE]
C
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EC
2.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
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 INPUT SIGNAL CIRCUIT-II
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Disconnect IPDM E/R harness connector E8.
4.
Check harness continuity between ECM terminal 3 and IPDM E/R terminal 42.
Refer to Wiring Diagram.
5.
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 E12, F3
●
Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-I
1.
Reconnect all harness connectors disconnected.
2.
Turn ignition switch OFF.
3.
Check voltage between ECM terminal 104 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 9.
NG
>> GO TO 6.
Ignition switch
Voltage
OFF
Approximately 0V
ON
Battery voltage
(11 - 14V)
MBIB0028E
Continuity should exist.
Voltage: Battery voltage
PBIB1171E
EC-1326
[VK45DE]
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
6.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II
1.
Disconnect ECM harness connector.
2.
Disconnect IPDM E/R harness connector E9.
3.
Check harness continuity between ECM terminal 104 and IPDM E/R terminal 47.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 8.
NG
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
●
Harness connectors E108, M15
●
Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
8.
CHECK FUSE
1.
Disconnect 15A fuse.
2.
Check 15A fuse for blown.
OK or NG
OK
>> GO TO 9.
NG
>> Replace 15A fuse.
9.
CHECK INTERMITTENT INCIDENT
Refer to
EC-857, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
OK or NG
OK
>> Replace IPDM E/R. Refer to
PG-18, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MOD-
.
NG
>> Repair or replace harness or connectors.
Continuity should exist.
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-1327
[VK45DE]
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EC
10.
CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
1.
Turn ignition switch OFF.
2.
Disconnect electric throttle control actuator (1) harness connec-
tor.
–
Illustration shows the view with intake air duct removed.
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 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.
This illustration shows the view with intake air removed.
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-1328, "Component Inspection"
.
OK or NG
OK
>> GO TO 13.
NG
>> GO TO 14.
13.
CHECK INTERMITTENT INCIDENT
Refer to
EC-857, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
OK or NG
OK
>> GO TO 14.
NG
>> Repair or replace harness or connectors.
Electric throttle control
actuator terminal
ECM terminal
Continuity
5
5
Should not exist.
4
Should exist.
6
5
Should exist.
4
Should not exist.
PBIB2690E
PBIB2722E
EC-1328
[VK45DE]
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
14.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace the electric throttle control actuator.
2.
Perform
EC-788, "Throttle Valve Closed Position Learning"
.
3.
Perform
EC-788, "Idle Air Volume Learning"
.
>> INSPECTION END
Component Inspection
NBS005O4
THROTTLE CONTROL MOTOR
1.
Disconnect electric throttle control actuator harness connector.
2.
Check resistance between terminals 5 and 6.
3.
If NG, replace electric throttle control actuator and go to next
step.
4.
Perform
EC-788, "Throttle Valve Closed Position Learning"
.
5.
Perform
EC-788, "Idle Air Volume Learning"
.
Removal and Installation
NBS005O5
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to
Resistance: Approximately 1 - 15
Ω
[at 25
°
C (77
°
F)]
PBIB2909E
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