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Diagnostic Procedure

REMOTE RADIO SWITCH OPEN - DIAGNOSTIC PROCEDURE

TEST ACTION APPLICABILITY
1 Turn the ignition and radio on.
Operate both remote radio switches.
Are both remote radio control switches inoperative?
  1. Yes: Go To 2
  2. No: Go To 7
 All
2 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?
  1. Yes: Go To 3
  2. No: Replace the Body Control Module in accordance with the service information.

    Perform BODY VERIFICATION TEST VER-1 .

 All
3 Turn the ignition off.
Disconnect the Clockspring C2 harness connector.
Turn the ignition on.
Connect a jumper wire between the Radio Control MUX circuit and the Radio Control MUX Return circuit at the Clockspring C2 connector.
With the DRBIII®, enter Body Computer then Sensors and monitor the Radio Control SW voltage.
Is the voltage approximately 0.0 volts?
  1. Yes: Check the circuits between the clockspring connector and the splice for an open. If ok, replace the Clockspring.

    Perform BODY VERIFICATION TEST VER-1 .

  2. No: Go To 4
 All
4 Turn the ignition off.
Disconnect the Clockspring C2 harness connector.
Disconnect the BCM C5 harness connector.
Measure the resistance of the Radio Control MUX circuit between the BCM connector and the Clockspring connector.
Is the resistance below 5.0 ohms?
  1. Yes: Go To 5
  2. No: Repair the Radio Control MUX circuit for an open between the clockspring and the BCM.

    Perform BODY VERIFICATION TEST VER-1 .

 All
5 Turn the ignition off.
Disconnect the Clockspring C2 harness connector.
Disconnect the BCM C4 harness connector.
Measure the resistance of the Radio Control MUX Return circuit between the BCM connector and the Clockspring connector.
Is the resistance below 5.0 ohms?
  1. Yes: Go To 6
  2. No: Repair the Radio Control MUX Return circuit for an open between the clockspring and the BCM.

    Perform BODY VERIFICATION TEST VER-1 .

 All
6 If there are no possible causes remaining, view repair.
  1. Repair: Replace the Body Control Module in accordance with the service information.

    Perform BODY VERIFICATION TEST VER-1 .

 All
7
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 both remote radio switch harness connectors.Turn the ignition on, reconnect the battery.Measure the voltage of the Radio Control MUX circuit at the inoperative remote radio switch.Is the voltage approximately 5.0 volts?
  1. Yes: Go To 8
  2. No: Repair the Radio Control MUX circuit for an open between the inoperative switch and the splice.

    Perform BODY VERIFICATION TEST VER-1 .

 All
8
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 both remote radio switch harness connectors.Disconnect the Clockspring harness connector.Measure the resistance of the Radio Control MUX Return circuit between the inoperative remote radio switch and the clockspring connector.Is the resistance below 5.0 ohms?
  1. Yes: Go To 9
  2. No: Repair the Radio Control MUX Return circuit for an open between the inoperative switch and the clockspring.

    Perform BODY VERIFICATION TEST VER-1 .

 All
9 If there are no possible causes remaining, view repair.
  1. Repair: Replace the inoperative Remote Radio Switch.

    Perform BODY VERIFICATION TEST VER-1 .

 All
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