Malfunction in Park / Neutral Position Switch - Vehicle Stability Control System

BRAKE CONTROL / DYNAMIC CONTROL SYSTEMS: VEHICLE STABILITY CONTROL SYSTEM: C1207/37: Malfunction in Park / Neutral Position Switch
C1207/37 - Malfunction in Park / Neutral Position Switch

DESCRIPTION

The park/neutral position switch signal is sent to the skid control ECU via the CAN communication system.

When there is a malfunction in the CAN communication system, it will be detected by the diagnostic function.





WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
When replacing the VSC actuator assembly, perform zero point calibration Programming and Relearning.

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM

(a) Check if the CAN communication system DTC is output Diagnosis System.

Result





B -- GO TO CAN COMMUNICATION SYSTEM How to Proceed With Troubleshooting
A -- Continue to next step.

2. INSPECT PARK / NEUTRAL POSITION SWITCH ASSEMBLY

(a) Disconnect the D21 switch connector.





(b) Measure the resistance of the park/neutral position switch when the shift lever is moved to each position.

Standard Resistance:





NG -- REPLACE PARK / NEUTRAL POSITION SWITCH ASSEMBLY
OK -- Continue to next step.

3. CHECK PARK / NEUTRAL POSITION SWITCH ASSEMBLY (POWER SOURCE)

(a) Disconnect the D21 switch connector.





(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK / NEUTRAL POSITION SWITCH - IGNITION SWITCH)
OK -- Continue to next step.

4. CHECK HARNESS AND CONNECTOR (PARK / NEUTRAL POSITION SWITCH - ECM)

(a) Disconnect the D21 switch connector.





(b) Disconnect the D56 ECM connector.

(c) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK / NEUTRAL POSITION SWITCH - ECM)
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (PARK / NEUTRAL POSITION SWITCH - ECM)

(a) Disconnect the D56 ECM connector.





(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:





HINT
*: The voltage will drop slightly due to the turning on of the back up light.

Result





D -- REPLACE ECM Removal

C -- REPLACE ECM Removal

B -- REPLACE ECM Removal

A -- REPAIR OR REPLACE HARNESS OR CONNECTOR (PARK / NEUTRAL POSITION SWITCH - ECM)