Initial Inspection and Diagnostic Overview
MOONROOF / FUNCTION TEST1. Remove the dashboard lower cover, and if necessary, remove the knee bolster.
2. Carefully pry the switch out of the left side air vent panel, then disconnect the 4-P connector to remove the switch.
3. Check for continuity between the No. 2 terminal and body ground.
* If there is no continuity, check for
- an open in the BLK wire.
- poor ground (G201, G401).
* If there is continuity, go to step 4.
4. Check for voltage between the No. 4 terminal (+) and No. 2 terminal (-) with the ignition switch ON (II). There should be battery voltage.
* If there is no battery voltage, check for
- blown No. 1 (30 A) or No. 14 (20 A) fuse in the under-dash fuse/relay box.
- an open in the wires (GRN1,BLK, GRN, WHT or loose terminals.
- faulty moonroof relay.
* If there is battery voltage, go to step 5.
5. Connect the No. 4 terminal to the No. 3 terminal, and the No. 1 terminal to the No. 2 terminal with jumper wires. The moonroof should open when the ignition switch is turned ON (II).
* If the moonroof opens, check the moonroof switch.
* If it doesn't open, remove the headliner and check the motor.