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

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

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

PROCEDURE

1. CHECK CAN COMMUNICATION SYSTEM
(a) Check if a CAN communication system DTC is output How to Proceed With Troubleshooting.

Result





B -- GO TO CAN COMMUNICATION SYSTEM
A -- Continue to next step.
2. INSPECT PARK / NEUTRAL POSITION SWITCH ASSEMBLY




(a) Disconnect the D35 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 D35 switch connector.
(b) 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 D74 ECM connector.
(b) 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





E -- REPLACE ECM
D -- REPLACE ECM
C -- REPLACE ECM
B -- REPLACE ECM
A -- REPAIR OR REPLACE HARNESS OR CONNECTOR