Test C: Express Down Function Inoperative
NOTE:
Reviewing system description and operation information will help determine if condition described by customer is normal operation, and may help determine correct symptom diagnostic procedure when a malfunction exists.
- If power window system description and operation has been reviewed, go to next step. If description and operation has not been reviewed, see POWER WINDOW SYSTEM under DESCRIPTION & OPERATION. After power window system description and operation has been reviewed, go to next step.
- Operate power window express down function. If express down function does not operate properly, go to next step. If express down function operates properly, go to DIAGNOSING INTERMITTENTS .
- Check for poor connections at master switch harness connectors. Repair as necessary. After repair, go to step 5 . If no problem is found, go to next step.
- Replace master switch. See WINDOW SWITCH under REMOVAL & INSTALLATION. After repair, go to next step.
- Operate system to verify repairs. If system does not operate properly, go to step 2 . If system operates properly, system is okay.
NOTE:
Driver door window switch may be referred to as left front window switch, master window switch or master switch.