SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSJEEP2023GRAND CHEROKEE LIMITED, AWDREPAIR AND DIAGNOSISHEATING, VENTILATION & A/C (HVAC)HVAC CONTROL SYSTEMSHEATING AND AIR CONDITIONING (ATC) - DTCS B1F11-19 TO U0010-00DTC TROUBLESHOOTINGB1F13-11-REAR RIGHT HEATER CONTROL 2-CIRCUIT SHORT TO GROUNDDIAGNOSTIC TEST
2023 Jeep Grand Cherokee Limited, AWD

Diagnostic Test

2023 Jeep Grand Cherokee Limited, AWDSECTION Diagnostic Test
  1. READ AND RECORD DTCS AND ENVIRONMENTAL DATA - ERASE DTCS AND CHECK FOR DTC TO RETURN 
    1. With the scan tool, read DTCs in all Electronic Control Units (ECUs) and record on the repair order.
    2. With the scan tool, run a vehicle Scan Report, or record the Environmental Data related to the DTCs.
    3. With the scan tool, erase all DTCs.
    4. Turn the ignition off for a minimum of 10.0 seconds.
    5. Start the Engine.
    6. Turn the Heated Seat on.
    7. Using the recorded Environmental Data and the When Monitored Conditions, operate the vehicle in the conditions that set the DTC.
    8. With the scan tool, read CRSM DTCs.

    Is the same DTC active?

    Yes 

    • Go To  2

    No 

  2. ISOLATE AND CHECK THE (P871) POWER SUPPLY CIRCUIT FOR A SHORT TO GROUND 
    NOTE:

    DIAGNOSE AND REPAIR ALL LIN BUS RELATED DTC'S BEFORE PERFORMING THIS TEST PROCEDURE 

    The ignition must be off when checking a circuit for continuity to ground.

    1. Isolate the circuit by disconnecting the Electronic Control Unit (ECU) and every component harness connector containing the circuit being tested. Note:  Use the appropriate SYSTEM WIRING DIAGRAM as a guide to follow the path of the circuit.
    2. Connect the negative lead of the DVOM to a known good ground.
    3. With the positive lead of the DVOM, probe the circuit being tested at the component harness connector and check for continuity between the circuit and ground.
    NOTE:

    When probing a circuit at an Electronic Control Unit (ECU) harness connector, always use an appropriate back probing tool to prevent any possible damage to the ECU terminals.

RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.