Diagnostic Test

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all TIPM DTCs.
3. Turn the Stop Lamps on.
4. With the scan tool read the DTC information.
  Does the scan tool read: B1784-STOP LAMP CONTROL CIRCUIT LOW?
  
  Yes
  - Go To 2
  No
  - The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
(L55) STOP LAMP CONTROL CIRCUIT SHORTED TO GROUND

Fig 1: Measuring Resistance Between Ground & Stop Lamp Control Circuit
Courtesy of CHRYSLER GROUP, LLC
1. Turn the ignition off.
2. Disconnect the TIPM C3 connector.
3. Disconnect the Left and Right Rear Tail Lamp harness connectors.
4. Measure the resistance between ground and the (L55) Stop Lamp Control circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (L55) Stop Lamp Control circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .
  No
  - Replace the Totally Integrated Power Module (TIPM) in accordance with the service information.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE - BODY VERIFICATION TEST .