Pinpoint Test AG: The VEHICLE NOT IN PARK SELECT P Message Is Inoperative/Always On (Intelligent Access (IA) Only)

Instrumentation, Message Center and Warning Chimes

Pinpoint Test AG: The VEHICLE NOT IN PARK SELECT P Message Is Inoperative/Always On (Intelligent Access (IA) Only)

Normal Operation

The park detect switch is hardwired to the Instrument Panel Cluster (IPC) through a single input circuit and grounded through a separate ground circuit. When the vehicle is in PARK (P), the park detect switch opens. When the vehicle is not in PARK (P), the park detect switch closes, providing a ground to the IPC (Instrument Panel Cluster) through the park detect input circuit. The IPC (Instrument Panel Cluster) receives the driver door ajar data from the Body Control Module (BCM) over the Medium Speed Controller Area Network (MS-CAN) communication bus. When the ignition is placed in the off mode with the floor shifter out of the PARK (P) position and the driver door open, the IPC (Instrument Panel Cluster) sends the Front Control/Display Interface Module (FCDIM) a request over the Controller Area Network (CAN) communication bus to display VEHICLE NOT IN PARK SELECT P in the message center.

- DTC P081C:01 (Park Input Circuit: General Electrical Failure)- an on-demand DTC that sets if the IPC (Instrument Panel Cluster) detects an open on the park input circuit.

This pinpoint test is intended to diagnose the following:

- Wiring, terminals or connectors

- Park detect switch

- IPC (Instrument Panel Cluster)

PINPOINT TEST AG : THE VEHICLE NOT IN PARK SELECT P MESSAGE IS INOPERATIVE/ALWAYS ON (IA (Intelligent Access) ONLY)

NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

NOTE: Failure to disconnect the battery when instructed results in false resistance readings.

AG1 CHECK THE PARK DETECT INPUT TO THE IPC (Instrument Panel Cluster)

- Ignition ON.

- Enter the following diagnostic mode on the scan tool: IPC (Instrument Panel Cluster) DataLogger.

- Select the IPC (Instrument Panel Cluster) park detect PID (GEAR_PARK).

- Monitor the PID while moving the floor shifter in and out of PARK (P).

Does the PID display TRUE when in PARK (P) and FALSE when out of PARK (P)?

Yes
GO to AG2.

No
GO to AG3.

AG2 RETRIEVE THE RECORDED DTCs FROM THE FCDIM (Front Control/Display Interface Module) SELF-TEST

- Check for recorded DTCs from the FCDIM (Front Control/Display Interface Module) self-test.

Is DTC U0155:00 recorded?

Yes
REFER to Accessories and Optional Equipment.

No
INSTALL a new FCDIM (Front Control/Display Interface Module). TEST the system for normal operation.

AG3 RETRIEVE THE RECORDED DTCs FROM THE IPC (Instrument Panel Cluster) SELF-TEST

- Check for recorded DTCs from the IPC (Instrument Panel Cluster) self-test.

Are any DTCs recorded?

Yes
For DTC P081C:01, GO to AG4.

For all other DTCs, REFER to DTC Charts Instrumentation, Message Center and Warning Chimes.

No
GO to AG6.

AG4 CHECK THE PARK DETECT INPUT CIRCUIT FOR A SHORT TO VOLTAGE

- Ignition OFF.

- Disconnect: IPC (Instrument Panel Cluster) C220.

- Disconnect: Remote Function Actuator (RFA) Module C3503C.

- Ignition ON.

- Measure the voltage between the IPC (Instrument Panel Cluster) C220-25, circuit CDC41 (WH/BN), harness side and ground.





Is any voltage present?

Yes
REPAIR circuit CDC41 (WH/BN) for a short to voltage. TEST the system for normal operation.

No
GO to AG5.

AG5 CHECK THE PARK DETECT INPUT CIRCUIT FOR AN OPEN

- Ignition OFF.

- Disconnect: Floor Shifter C3245.

- Measure the resistance between the IPC (Instrument Panel Cluster) C220-25, circuit CDC41 (WH/BN), harness side and the floor shifter C3245-2, circuit CDC41 (WH/BN), harness side.





Is the resistance less than 5 ohms?

Yes
GO to AG7.

No
REPAIR circuit CDC41 (WH/BN) for an open. TEST the system for normal operation.

AG6 CHECK THE PARK DETECT INPUT CIRCUIT FOR A SHORT TO GROUND

- Ignition OFF.

- Disconnect: Remote Function Actuator (RFA) Module C3503C.

- Measure the resistance between the IPC (Instrument Panel Cluster) C220-25, circuit CDC41 (WH/BN), harness side and ground.





Is the resistance greater than 10,000 ohms?

Yes
GO to AG7.

No
REPAIR circuit CDC41 (WH/BN) for a short to ground. TEST the system for normal operation.

AG7 CHECK FOR CORRECT IPC (Instrument Panel Cluster) OPERATION

- Disconnect the IPC (Instrument Panel Cluster) connector.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect the IPC (Instrument Panel Cluster) connector and make sure it seats correctly.

- Operate the system and determine if the concern is still present.

Is the concern still present?

Yes
INSTALL a new IPC (Instrument Panel Cluster). REFER to Instrument Panel Cluster (IPC) Service and Repair. TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.