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 MANUALSJEEP2009WRANGLER SAHARA, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICES(TOTALLY INTEGRATED POWER MODULE (TIPM) - ELECTRICAL DIAGNOSTICS)DTC TROUBLESHOOTINGB2304-WIPER PARK SWITCH INPUT CIRCUIT LOW (STUCK LOW)DIAGNOSTIC TEST

2009 Jeep Wrangler Sahara, Automatic

Diagnostic Test

2009 Jeep Wrangler Sahara, AutomaticSECTION Diagnostic Test

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. Cycle the Wiper Switch on and off three times.
4. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go to step 2
  No
  - The condition that caused this symptom is currently not present. 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, pushed out, spread, corroded, or contaminated terminals. Repair as necessary.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
FRONT WIPER MOTOR

Fig 1: Checking Front Wiper Motor
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Front Wiper Motor harness connector.
3. Turn the ignition on.
4. Wait 30 seconds.
5. With the scan tool, read the Front Wiper Park Switch Sense.
  Does the Front Wiper Park Switch Sense display: False?
  
  Yes
  - Replace the Front Wiper Motor in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .
  No
  - Go to step 3
CHECK (W7) WIPER PARK SWITCH SENSE CIRCUIT FOR A SHORT TO GROUND

Fig 2: Checking Wiper Park Switch Sense Circuit
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the TIPM C7 harness connector.
3. Measure the resistance between ground and the (W7) Wiper Park Sense Circuit.
  Is the resistance above 10k Ohms?
  
  Yes
  - Replace 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 (W7) Wiper Park Switch Sense circuit for a short to ground.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Totally Integrated Power (TIPM) - Standard Procedure .

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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.