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ROM CHECKSUM ERROR For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes HANDS FREE MODULE Diagnostic Test 1. ERASE DTC AND ATTEMPT TO RESET Turn 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 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 con- 8T - 62 NAVIGATION/TELECOMMUNICATION - ELECTRICAL DIAGNOSTICS KJ |