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 MANUALSJEEP2014CHEROKEE SPORT, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESBODY CONTROL MODULE (BCM) - DTCS B186E-64 TO U01B0-87DIAGNOSIS AND TESTINGB2349-18-WIPER MOTOR HI SPEED CONTROL - UNDER CURRENTDIAGNOSTIC TEST

2014 Jeep Cherokee Sport, AWD

Diagnostic Test

2014 Jeep Cherokee Sport, AWDSECTION Diagnostic Test

CHECK FOR AN ACTIVE DTC
1. Turn the ignition on.
2. With the scan tool, read DTCs.
  Does the scan tool display this DTC as active?
  
  Yes
  - Go To 2
  No
  - Test complete. The condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals and correct pin tension.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
CHECK THE (W4) WIPER HIGH SPEED CONTROL OUTPUT CIRCUIT FOR A SHORT TO VOLTAGE
1. Turn the ignition off.
2. Disconnect the Front Wiper Motor harness connector.
3. Turn the ignition on.
4. Measure the voltage of the (W4) Wiper High Speed Control Output circuit.
  Is voltage present?
  
  Yes
  - Repair the short to voltage in the (W4) Wiper High Speed Control Output circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 3
CHECK FOR VOLTAGE ON THE (W4) WIPER HIGH SPEED CONTROL OUTPUT CIRCUIT WITH HIGH SPEED WIPERS TURNED ON
1. Turn the High Speed Wipers on.
2. Measure the voltage of the (W4) Wiper High Speed Control Output circuit.
  Is the voltage greater than 10.0 volts?
  
  Yes
  - Replace the Front Wiper Motor in accordance with the Service Information. Refer to MOTOR, WIPER, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Go To 4
CHECK THE (W4) WIPER HIGH SPEED CONTROL OUTPUT CIRCUIT FOR AN OPEN
1. Turn the ignition off.
2. Disconnect the BCM C3 harness connector.
3. Measure the resistance of the (W4) Wiper High Speed Control Output circuit between the BCM C3 and Front Wiper Motor harness connectors.
  Is the resistance above 5.0 Ohms?
  
  Yes
  - Repair the open in the (W4) Wiper High Speed Control Output circuit.
  - Perform the BODY VERIFICATION TEST. Refer to STANDARD PROCEDURE .
  No
  - Replace the Body Control Module in accordance with the Service Information. Refer to MODULE, BODY CONTROL, REMOVAL .
  - Perform the BODY VERIFICATION TEST. Refer to 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.