SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHRYSLER2007ASPEN 4.7 P, RWDREPAIR AND DIAGNOSIS (SINGLE PAGE)BODY & FRAMEDOOR LOCKSPOWER LIFTGATE SYSTEM - ELECTRICAL DIAGNOSTICSPOWER LIFTGATE - ELECTRICAL DIAGNOSTICSDTC TROUBLESHOOTINGB18E4-POWER LIFTGATE FRONT ZONE SWITCH CIRCUIT HIGHDIAGNOSTIC TEST
2007 Chrysler Aspen 4.7 P, RWD

Diagnostic Test

2007 Chrysler Aspen 4.7 P, RWDSECTION Diagnostic Test
  1. 1) DTC PRESENT 

    With the scan tool, record DTC's.

    Erase DTC's

    Turn the ignition off, wait 10 seconds, then turn the ignition on.

    Operate the liftgate several times from the overhead switch.

    With the scan tool, read DTCs.

    Does the scan tool display B18E4-POWER LIFTGATE FRONT ZONE SWITCH CIRCUIT HIGH? 

    Yes 

    1. Go to  2).

    No 

    1. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.
    2. Perform BODY VERIFICATION TEST - VER 1 .
  2. 2) LIFTGATE RELEASE SWITCH SHORTED 
    Fig 1: Liftgate Release Switch PLG Connector And Sunroof/Liftgate Switch PLG Connector
    GC0044184Courtesy of CHRYSLER LLC

    Disconnect the Overhead Liftgate Release Switch connector.

    Erase DTC's

    Turn the ignition off, wait 10 seconds, then turn the ignition on.

    With the scan tool, read DTC's.

    Does the scan tool display B18E3-POWER LIFTGATE FRONT ZONE SWITCH CIRCUIT LOW? 

    Yes 

    1. Go to  3).

    No 

    1. Replace the Overhead Liftgate Switch assembly.
    2. Perform BODY VERIFICATION TEST - VER 1 .
  3. 3) (G25) LIFTGATE SWITCH SENSE CIRCUIT SHORT TO VOLTAGE 
    Fig 2: Measuring Voltage Between Ground And Liftgate Switch Sense Circuit
    GC0044186Courtesy of CHRYSLER LLC

    Disconnect the Power Liftgate Module C2 harness connector.

    Measure the voltage between ground and the (Q25) Liftgate Switch Sense circuit.

    Is there any voltage present? 

    No 

    1. Go to  4).

    Yes 

    1. Repair the (G25) Liftgate Switch Sense circuit for a short to voltage.
    2. Perform BODY VERIFICATION TEST - VER 1 .
  4. 4) (G25) LIFTGATE SWITCH SENSE CIRCUIT OPEN 
    Fig 3: Measuring Resistance Of Liftgate Switch Sense Circuit
    GC0044185Courtesy of CHRYSLER LLC
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.