B18B7

B18B7 - Master Switch - Left Rear Window Switch - Stuck

For a complete wiring diagram, refer to.

• When Monitored: At all times.

• Set Condition: Whenever the module detects a left rear window signal from the master power window switch, for over 30 seconds, this code will set.






Test Step 1 - Test for an Intermittent Condition

• Turn the ignition ON.

• With the scan tool, record and erase DTCs.

• Operate the rear left window up and down several times.

• Wait 30 seconds.

• With the scan tool, check for DTCs.

Does the scan tool display B18B7- Master Switch - Left Rear Window Switch - Stuck?

Yes

• Go to Test Step 2

No

• The conditions that caused this code to set are not present at this time. Operate the switch several more times. If the switch ever sticks, replace it.

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

Test Step 2 - Master Power Window Switch

• Anytime this code is active, the switch must be replaced.

• Replace the master power window switch.

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