Infiniti Q45. Manual — part 498
DTC P2100, P2103 THROTTLE CONTROL MOTOR RELAY
EC-631
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EC
2.
DETECT MALFUNCTIONING PART
Check the following.
●
15A fuse
●
Harness for open or short between throttle control motor relay and battery
>> Repair or replace harness or connectors.
3.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT
1.
Disconnect ECM harness connector.
2.
Check continuity between ECM terminal 3 and throttle control motor relay terminal 5.
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 E32, F32
●
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 FOR OPEN AND SHORT
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 E33, F33
●
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
Refer to
EC-632, "Component Inspection"
OK or NG
OK
>> GO TO 8.
NG
>> Replace throttle control motor relay.
Continuity should exist.
Continuity should exist.
EC-632
DTC P2100, P2103 THROTTLE CONTROL MOTOR RELAY
8.
CHECK INTERMITTENT INCIDENT
Refer to
EC-145, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
.
>> INSPECTION END
Component Inspection
NBS00201
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 P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-633
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EC
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
PFP:16119
Description
NBS001ZO
NOTE:
If DTC P2101 is displayed with DTC P2100 or 2119, first perform the trouble diagnosis for DTC P2100
or P2119. Refer to
EC-627, "DTC P2100, P2103 THROTTLE CONTROL MOTOR RELAY"
"DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR"
.
Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
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
NBS001ZP
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
DTC Confirmation Procedure
NBS001ZQ
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11V when engine
is running.
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.
EC-635, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P2101
2101
Electric throttle control
performance
Electric throttle control function does not oper-
ate properly.
●
Harness or connectors
(Throttle control motor circuit is open or
shorted)
●
Electric throttle control actuator
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-634
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
Wiring Diagram
NBS001ZR
TBWM1237E
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