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.

2010 Jeep Commander Limited, RWDFACTORY OEM SERVICE PROCEDURE

Diagnostic Test

INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the Scan Tool, clear all FCM DTC's.
3. Turn the Wipers on.
4. With the Scan Tool, read the Wiper DTC's.
  Does the Scan Tool read: B2328-WASHER FLUID LEVEL SENSOR INPUT CIRCUIT HIGH?
  
  Yes
  - Go to step 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, Front Control (FCM) - Standard Procedure
(W1) WASHER FLUID LEVEL SENSOR SIGNAL CIRCUIT SHORT TO VOLTAGE

Fig 1: Checking Washer Fluid Level Sensor Signal Circuit Short To Voltage
Courtesy of CHRYSLER LLC
1. Turn the ignition off.
2. Disconnect the Washer Fluid Level Sensor connector.
3. Disconnect the Front Control Module C1 connector.
4. Turn the ignition on.
5. Measure the voltage of the (W1) Washer Fluid Level Sensor Signal circuit.
  Is the voltage above 5.0 volts?
  
  Yes
  - Repair the (W1) Washer Fluid Level Sensor Signal circuit for a short to voltage.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure
  No
  - Replace the Front Control Module in accordance with the Service Information.
  - Perform the BODY VERIFICATION TEST. See DTC-Based Diagnostics/MODULE, Front Control (FCM) - Standard Procedure

Factory Service Tools

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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.

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