Diagnostic Test

ACTIVE DTC
NOTE: If any Engine Brake DTCs are present they must be repaired before continuing.

NOTE: Make sure the Stop Lamp Switch is properly adjusted before continuing.
1. Ignition on, engine not running.
2. With a scan tool, select View DTCs.
  Is the DTC Active at this time?
  
  Yes
  - Go to step 2
  No
  - Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also, inspect the related connectors for broken, bent, corroded, or contaminated terminals.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
STOP LAMP SWITCH

Fig 1: Checking Stop Lamp Switch Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Stop Lamp Switch.
3. Measure the resistance between the (A924) Fused B+ terminal and the (L53) Primary Brake Switch Signal/Brake Lamp Switch Output terminal in the Stop Lamp Switch.
4. Apply and release the brake pedal while monitoring the ohmmeter.
  Does the resistance change from below 5.0 Ohms to an open circuit?
  
  Yes
  - Go to step 3
  No
  - Replace the Stop Lamp Switch.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(L53) PRIMARY BRAKE SWITCH SIGNAL/BRAKE LAMP SWITCH OUTPUT CIRCUIT

Fig 2: Checking Stop Lamp Switch Output Circuit
Courtesy of CHRYSLER LLC
1. Reconnect the Stop Lamp Switch.
2. Disconnect the Totally Integrated Power Module (TIPM) harness connector.
3. Turn the ignition on.
4. Using a 12-volt test light connected to ground, check the (L53) Primary Brake Switch Signal/Brake Lamp Switch Output circuit in the Totally Integrated Power Module (TIPM) harness connector while pressing and releasing the brake pedal several times.
  Does the test light change from illuminated when the pedal is pressed to not illuminated when the pedal is released?
  
  Yes
  - Replace and program the Totally Integrated Power Module (TIPM) in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Repair the (L53) Primary Brake Switch Signal/Brake Lamp Switch Output circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .