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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 >> B1E72-11-Power Inverter Enable Control - Circuit Short To Ground >> 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. TEST FOR INTERMITTENT CONDITION 
    1. Turn the ignition on.
    2. With the scan tool, record and erase DTCs.
    3. Operate the 115 Volt AC Outlet switch several times.
    4. With the scan tool, read DTCs.

      Is the DTC active at this time?

      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 (P807) INVERTER SWITCH SIGNAL CIRCUIT FOR A SHORT TO GROUND 
    Fig 1: Checking Inverter Switch Signal Circuit For A Short To Ground
    GC0148800Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Disconnect the BCM F harness connector.
    3. Disconnect the Inverter Module harness connector.
    4. Measure the resistance between ground and the (P807) Inverter Switch Signal circuit at the Inverter Module harness connector.

      Is the resistance above 10k Ohms?

      Yes 

      • Go To  3

      No 

      • Repair the short to ground in the (P807) Inverter Switch Signal circuit.
      • Perform the BODY VERIFICATION TEST. Refer to BODY VERIFICATION TEST .
  3. CHECK (P807) INVERTER SWITCH SIGNAL CIRCUIT FUNCTION 
    Fig 2: Checking Inverter Switch Signal Circuit Function
    GC0148801Courtesy of CHRYSLER GROUP, LLC
    1. Turn the ignition off.
    2. Reconnect the BCM F harness connector.
    3. Turn the ignition on.
    4. Using a 12-volt test light connected to ground, check the (P807) Inverter Switch Signal circuit at the Inverter Module harness connector.
    5. With the scan tool, actuate the Inverter Enable Relay.

      Does the test light illuminate?

      Yes 

      No