B18E5

B18E5 - Power Liftgate Front Zone Switch - Stuck






For a complete wiring diagram, refer to.

• When Monitored: Whenever the power liftgate module is awake.

• Set Condition: When the power liftgate module senses the liftgate switch sense circuit active (2.0 to 3.0 volts) for longer than 15 seconds, this code will set.






Test Step 1 - DTC Present

• With the scan tool, record DTCs.

• Erase DTCs.

• 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, check for DTCs.

Does the scan tool display B18E5 - Power Liftgate Front Zone Switch Stuck?

Yes

• Go to Test Step 2

No

• Using the wiring diagram/schematic as a guide, inspect the wiring and connectors for an intermittent condition.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - Liftgate Release Switch Stuck






• Disconnect the switch bank 2 harness connector.

• Erase DTCs.

• Turn the ignition OFF, wait 10 seconds, then turn the ignition ON.

• With the scan tool, check for DTCs.

Does the scan tool display B18E5 - Power Liftgate Front Zone Switch Stuck?

Yes

• Go to Test Step 3

No

• Replace the switch bank assembly.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 3 - Liftgate Switch Sense Circuit Short to Ground






• Turn the ignition OFF.

• Disconnect the power liftgate module C2 harness connector.

• Measure the resistance between ground and the liftgate switch sense circuit.

Is the resistance less than 10k ohms?

Yes

• Repair the liftgate switch sense circuit for a partial short to ground.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Replace the power liftgate module.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior