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Home >> Jeep >> 2014 >> Wrangler Sahara, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 123 (Body Control Module (BCM) - DTCS B1812-2A To U1433-24) >> DTC Troubleshooting >> B230C-12-Rear Wiper Park Switch Input - Circuit Short To Battery >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2016 Dodge Journey and 2015 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
  1. INTERMITTENT CONDITION 
    1. Turn the ignition on.
    2. With the scan tool, clear all DTCs.
    3. Cycle the Rear 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  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 BODY VERIFICATION TEST .
  2. CHECK THE REAR WIPER MOTOR FOR CORRECT OPERATION 
    1. Turn the ignition off.
    2. Disconnect the Rear Wiper Motor harness connector.
    3. Turn the ignition on.
    4. Turn the rear wipers on.
    5. With the scan tool, read the DTCs.

      Does the scan tool display DTC: B230C-13-REAR WIPER PARK SWITCH INPUT - CIRCUIT OPEN?

      Yes 

      No 

      • Go To  3
  3. CHECK (W17) REAR WIPER PARK SWITCH SENSE CIRCUIT FOR A SHORT TO VOLTAGE 
    Fig 1: Checking Rear Wiper Park Switch Sense Circuit For A Short To Voltage
    GC0150191Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the BCM E harness connector.
    3. Turn the ignition on.
    4. Measure the voltage between ground and the (W17) Rear Wiper Park Switch Sense Circuit.

      Is there any voltage present?

      Yes 

      • Repair the short to voltage in the (W17) Rear Wiper Park Switch Sense circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .

      No