PRNDL Messages Not Received
PRNDL MESSAGE NOT RECEIVEDWHEN MONITORED
With the ignition on.
SET CONDITION
The Hands Free Module does not receive a gear selector message from the TCM
POSSIBLE CAUSES
- Lost communication with TCM
- Hands free module
WHEN MONITORED
With the ignition on.
SET CONDITION
The Hands Free Module does not receive a gear selector message from the TCM
POSSIBLE CAUSES
- Lost communication with TCM
- Hands free module
DIAGNOSTIC TEST
1. ATTEMPT TO COMMUNICATE WITH THE TCM
Turn the ignition on.
Turn the radio on.
With the DRB, attempt to communicate with the TCM.
Q: Was the DRB able to communicate with the TCM?
YES: Go To 2
NO:
2. ERASE DTC AND ATTEMPT TO RESET
With the DRB, erase the HFM DTC's.
Cycle the ignition switch from off to on and wait approximately 1 minute.
With the DRB, read the HFM DTC's.
Q: Did this DTC reset?
YES: Replace and program the Hands Free Module in accordance with the service information. Perform BODY VERIFICATION TEST - VER 1.
NO: The condition that set this DTC is no longer present. Using the wiring diagram/schematic as a guide, inspect the wiring for chafed, pierced, pinched, and partially broken wires and the wiring harness connectors for broken, bent, pushed out, and corroded terminals.