Infiniti Q45. Manual - part 498

 

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Infiniti Q45. Manual - part 498

 

 

DTC P2100, P2103 THROTTLE CONTROL MOTOR RELAY

EC-631

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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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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"

    or 

EC-645,

"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.

If DTC is detected, go to 

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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