Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSJEEP2009PATRIOT LIMITED, EDG, AUTOMATIC CVTREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESDTCS B163C TO B2112 (TIPM)B1643-REAR LEFT TURN CONTROL CIRCUIT LOWDIAGNOSTIC TEST

2009 Jeep Patriot Limited, EDG, Automatic CVT

Diagnostic Test

2009 Jeep Patriot Limited, EDG, Automatic CVTSECTION Diagnostic Test

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all TIPM DTCs.
3. Turn the Left Turn Signals on.
4. With the scan tool read the DTC information.
  Does the scan tool read: B1643-REAR LEFT TURN 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. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
(L63) LEFT TURN SIGNAL CONTROL CIRCUIT

Fig 1: Checking Rear Left Turn Signal Control Circuit For Short To Ground
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C3 connector.
3. Disconnect the Left Rear Tail Lamp connector.
4. Measure the resistance between ground and the (L63) Rear Left Rear Turn Signal Control circuit.
  Is the resistance below 5.0 Ohms?
  
  Yes
  - Repair the (L63) Rear Left Turn Signal Control circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Replace the Totally Integrated Power Module in accordance with the service information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.