Diagnostic Procedure

REMOTE RADIO SWITCH STUCK - DIAGNOSTIC PROCEDURE

TEST	ACTION	APPLICABILITY
1	With the DRBIII®, erase DTC's. Cycle the ignition switch from off to on and wait approximately 1 minute. With the DRBIII®, read DTC's. Did this DTC reset? Yes: Go To 2 No: Refer to SCHEMATIC DIAGRAMS to help isolate a possible intermittent short. Perform BODY VERIFICATION TEST VER-1 .	All
2	WARNING: Turn the ignition off, disconnect the battery and wait 2 minutes before proceeding. CAUTION: Do not place an intact undeployed airbag module face down on a hard surface, the airbag module will propel into the air if accidently deployed. Remove the Driver Airbag Module.Disconnect the Left Remote Radio Switch harness connector.Turn the ignition on, reconnect the battery.With the DRBIII®, enter Body Computer then Sensors and monitor the Radio Control SW voltage.Is the voltage approximately 4.5 volts or higher? Yes: Replace the Left Remote Radio Switch. Perform BODY VERIFICATION TEST VER-1 . No: Go To 3	All
3	WARNING: Turn the ignition off, disconnect the battery and wait 2 minutes before proceeding. CAUTION: Do not place an intact undeployed airbag module face down on a hard surface, the airbag module will propel into the air if accidently deployed. Remove the Driver Airbag Module.Disconnect the Right Remote Radio Switch harness connector.Turn the ignition on, reconnect the battery.With the DRBIII®, enter Body Computer then Sensors and monitor the Radio Control SW voltage.Is the voltage approximately 4.5 volts or higher? Yes: Replace the Right Remote Radio Switch. Perform BODY VERIFICATION TEST VER-1 . No: Go To 4	All
4	Turn the ignition off. Disconnect the Clockspring harness connector. Turn the ignition on. With the DRBIII®, enter Body Computer then Sensors and monitor the Radio Control SW voltage. Is the voltage approximately 5.0 volts? Yes: Go To 5 No: Go To 6	All
5	Turn the ignition off. Disconnect the Clockspring harness connector. NOTE: Ensure both remote radio switches are disconnected. Measure the resistance between ground and each Radio Control MUX circuit at the clockspring harness connector. Is the resistance below 5.0 ohms? Yes: Repair the Radio Control MUX circuit for a short to ground between the clockspring and the remote radio switches. Perform BODY VERIFICATION TEST VER-1 . No: Repair the Radio Control MUX circuit for a short to the Radio Control MUX Return circuit between the clockspring and the remote radio switches. Perform BODY VERIFICATION TEST VER-1 .	All
6	Turn the ignition off. Disconnect the Clockspring C2 harness connector. Turn the ignition on. With the DRBIII®, enter Body Computer then Sensors and monitor the Radio Control SW voltage. Is the voltage approximately 5.0 volts? Yes: Replace the Clockspring in accordance with the service information. Perform BODY VERIFICATION TEST VER-1 . No: Go To 7	All
7	Turn the ignition off. Disconnect the Clockspring C2 harness connector. Disconnect the BCM C5 harness connector. Measure the resistance between ground and the Radio Control MUX circuit. Is the resistance below 5.0 ohms? Yes: Repair the Radio Control MUX circuit for a short to ground between the clockspring and the BCM. Perform BODY VERIFICATION TEST VER-1 . No: Go To 8	All
8	Turn the ignition off. Disconnect the Clockspring C2 harness connector. Disconnect the BCM C4 and C5 harness connectors. Measure the resistance between the Radio Control MUX circuit and the Radio Control MUX Return circuit. Is the resistance below 5.0 ohms? Yes: Repair the Radio Control MUX circuit for a short to the Radio Control MUX Return circuit between the clockspring and the BCM. Perform BODY VERIFICATION TEST VER-1 . No: Go To 9	All
9	If there are no possible causes remaining, view repair. Repair: Replace the Body Control Module in accordance with the service information. Perform BODY VERIFICATION TEST VER-1 .	All