DTC P2112:00 [MZR 1.6]

id0102h3708100

DTC P2112:00

Throttle valve actuator control system range/performance problem

DETECTION CONDITION

•  If the duty ratio is 95% or more, the PCM determines that there is a throttle valve actuator control system range/performance problem.

Diagnostic support note

•  This is a continuous monitor (CCM).

•  The check engine light illuminates if the PCM detects the above malfunction condition in the first drive cycle.

•  FREEZE FRAME DATA (Mode 2)/Snapshot data is available.

•  DTC is stored in the PCM memory.

POSSIBLE CAUSE

•  Throttle body connector or terminals malfunction

•  PCM connector or terminals malfunction

•  Open circuit in wiring harness between the following terminals:

―  Throttle body terminal A—PCM terminal 2B

―  Throttle body terminal B—PCM terminal 2F

•  Throttle valve malfunction

•  Throttle valve actuator malfunction

•  PCM malfunction

―  Throttle valve actuator control module malfunction (built-into PCM)

DTC P2112:00	Throttle valve actuator control system range/performance problem
DETECTION CONDITION	• If the duty ratio is 95% or more, the PCM determines that there is a throttle valve actuator control system range/performance problem. Diagnostic support note • This is a continuous monitor (CCM). • The check engine light illuminates if the PCM detects the above malfunction condition in the first drive cycle. • FREEZE FRAME DATA (Mode 2)/Snapshot data is available. • DTC is stored in the PCM memory.
POSSIBLE CAUSE	• Throttle body connector or terminals malfunction • PCM connector or terminals malfunction • Open circuit in wiring harness between the following terminals: ― Throttle body terminal A—PCM terminal 2B ― Throttle body terminal B—PCM terminal 2F • Throttle valve malfunction • Throttle valve actuator malfunction • PCM malfunction ― Throttle valve actuator control module malfunction (built-into PCM)

Diagnostic Procedure

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA (MODE 2)/SNAPSHOT DATA HAS BEEN RECORDED • Has the FREEZE FRAME DATA (Mode 2)/snapshot data been recorded?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA (Mode 2)/snapshot data on repair order, then go to the next step.
2	VERIFY RELATED SERVICE INFORMATION AVAILABILITY • Verify related Service Information availability. • Is any related Service Information available?	Yes	Perform repair or diagnosis according to the available Service Information. • If the vehicle is not repaired, go to the next step.
2		No	Go to the next step.
3	INSPECT THROTTLE BODY CONNECTOR CONDITION • Switch the ignition off. • Disconnect the throttle body connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 8.
3		No	Go to the next step.
4	INSPECT PCM CONNECTOR CONDITION • Disconnect the PCM connector. • Inspect for poor connection (such as damaged/pulled-out pins, corrosion). • Is there any malfunction?	Yes	Repair or replace the connector and/or terminals, then go to Step 8.
4		No	Go to the next step.
5	INSPECT THROTTLE VALVE ACTUATOR CIRCUIT FOR OPEN CIRCUIT • Verify that the throttle body and PCM connectors are disconnected. • Inspect for continuity between the following terminals (wiring harness-side): ― Throttle body terminal A—PCM terminal 2B ― Throttle body terminal B—PCM terminal 2F • Is there continuity?	Yes	Go to the next step.
5		No	Refer to the wiring diagram and verify whether or not there is a common connector between the following terminals: • Throttle body terminal A—PCM terminal 2B • Throttle body terminal B—PCM terminal 2F If there is a common connector: • Determine the malfunctioning part by inspecting the common connector and the terminal for corrosion, damage, or pin disconnection, and the common wiring harness for an open circuit. • Repair or replace the malfunctioning part. If there is no common connector: • Repair or replace the wiring harness which has an open circuit. Go to Step 8.
6	INSPECT THROTTLE VALVE • Perform the Electronic Control Throttle Operation Inspection. (See ENGINE CONTROL SYSTEM OPERATION INSPECTION [MZR 1.6].) • Is there any malfunction?	Yes	Repair or replace the malfunctioning part according to the inspection results, then go to Step 8.
6		No	Go to the next step.
7	INSPECT THROTTLE VALVE ACTUATOR • Inspect the throttle valve actuator. (See THROTTLE BODY INSPECTION [MZR 1.6].) • Is there any malfunction?	Yes	Repair or replace the malfunctioning part according to the inspection results, then go to the next step.
7		No	Go to the next step.
8	VERIFY DTC TROUBLESHOOTING COMPLETED • Clear the DTC from the PCM memory using the M-MDS. (See AFTER REPAIR PROCEDURE [MZR 1.6].) • Perform the KOER self test. (See KOEO/KOER SELF TEST [MZR 1.6].) • Is the same DTC present?	Yes	Replace the PCM, then go to the next step. (See PCM REMOVAL/INSTALLATION [MZR 1.6].)
8		No	Go to the next step.
9	VERIFY AFTER REPAIR PROCEDURE • Perform the “AFTER REPAIR PROCEDURE”. (See AFTER REPAIR PROCEDURE [MZR 1.6].) • Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See DTC TABLE [MZR 1.6].)
9		No	DTC troubleshooting completed.