FLASH CHECKSUM ERROR
For a complete wiring diagram Refer to Section 8W.
- When Monitored:
With the ignition on.
- Set Condition:
The Hands Free Module detects a fault during an internal diagnostic check.
| Possible Causes |
| HANDS FREE MODULE |
Diagnostic Test
1. ERASE DTC AND ATTEMPT TO RESETTurn the ignition on.
With the scan tool, read and record the HFM DTC's and then erase the DTC's.
Perform 5 ignition key cycles, leaving the ignition key on for a minimum of 90 seconds per cycle.
With the scan tool, read the HFM DTC's.
Did this DTC reset?
Yes
- Replace and program the Hands Free Module in accordance with the service information.
- Perform BODY VERIFICATION TEST – VER 1. (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES - STANDARD PROCEDURE).
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.