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Home >> Chrysler >> 2011 >> 300 C, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 488 ((Totally Integrated Power Module (TIPM) - Electrical Diagnostics)) >> DTC Troubleshooting >> B1668-Reverse Lamp Control Circuit High >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
  1. TEST FOR INTERMITTENT CONDITION 
    1. Turn the ignition on.
    2. Clear all TIPM DTCs.
    3. Shift the transmission into reverse.
    4. With the scan tool, read DTCs.

      Does the scan tool read: B1668-REVERSE LAMP CONTROL CIRCUIT HIGH?

      Yes 

      • Go To  2

      No 

      • The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  2. (L1) BACKUP LAMP SWITCH OUTPUT CIRCUIT SHORT TO VOLTAGE 
    1. Turn the ignition off.
    2. Disconnect the TIPM C8 harness connector.
    3. Disconnect the Inside Rearview Mirror harness connector (if equipped).
    4. Disconnect the License Plate Lamp/Rear Camera Assembly harness connector (if equipped).
    5. Turn the ignition on.
    6. Measure the voltage on the (L1) Backup Lamp Switch Output circuit.

      Is the voltage above 10.0 volts?

      Yes 

      • Repair the (L1) Backup Lamp Switch Output circuit for a short to voltage.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .

      No 

      • Replace the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
      • Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .