Rearview Monitor Mirror Input Test/Replacement
NOTE:
The normal operating temperature range of rearview monitor mirror is -22°F to 176°F (-30°C to 80°C). Allow the inside temperature of the vehicle to stabilize within the normal operating range before testing.
- Turn the ignition switch to ON (II)
- Check the auto dimming inside mirror indicator. If the indicator flashing two times, and then turns on, there is a malfunction in the mirror. Replace it.
- Remove the roof console (see step 2 on HEADLINER REMOVAL/INSTALLATION ).
- Disconnect the 12P connector (A) from the roof wire harness (B).
- Inspect the connector and socket terminals to be sure they are all making good contact.
- If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.
- If the terminals look OK, go to step 6.
- Remove the tailgate lower trim panel (see TRIM REMOVAL/INSTALLATION - TAILGATE AREA ).
- With the connector still disconnected, do these input tests.NOTE: Make sure the connector is connected while testing terminals 12, 5 and 6. Make sure the connector is disconnected while testing terminals 3, 8, 2, 1 and 7.
- If any test indicates a problem, find and correct the cause, then recheck the system.
- If the input tests prove OK. Substitute and connect a known-good rearview camera and check the monitor image in reverse. If the symptom is gone, the rearview camera is faulty; replace it (see REARVIEW CAMERA REMOVAL/INSTALLATION
). If the symptom is still present, the rearview mirror is faulty; replace it.WIRE CONDITION TABLE
Cavity Wire Test condition Test: Desired result Possible cause if desired result is not obtained 12 BLK In all ignition switch positions Measure the voltage between the terminal No. 12 and body ground:
There should be less than 0.2 V.- An open or high resistance in the ground wire
- Poor ground (G701)
5 YEL Ignition switch ON (II) Measure the voltage between the terminal No. 12 and body ground:
There should be battery voltage.- An open or high resistance in the ground wire
- Faulty under-dash fuse relay box
- Faulty IG2 cut relay
- Blown No. 36 (10 A) fuse in the under-dash fuse/relay box
6 ORN Ignition switch ON (II) and the transmission range switch in R position Measure the voltage between the terminal No. 6 and body ground:
There should be battery voltage.- An open or high resistance in the wire.
- Blown No. 10 (7.5 A) fuse in the under-dash fuse/relay box
- Faulty under-dash fuse-relay box
- Faulty or improperly adjusted transmission range switch
- Poor ground (G101) or an open in the ground wire
3 WHT Disconnect the rearview camera 6P connector Check for continuity between the terminal No. 3 and rearview camera 6P connector terminal No. 6:
There should be continuity.An open or high resistance in the wire. Check for continuity between the terminal No. 3 and body ground:
There should be no continuity.A short to ground in the wire 8 RED Disconnect the rearview camera 6P connector Check for continuity between the terminal No. 8 and rearview camera 6P connector terminal No. 5:
There should be continuity.An open or high resistance in the wire. Check for continuity between the terminal No. 8 and body ground:
There should be no continuity.A short to ground in the wire 2 GRN Disconnect the rearview camera 6P connector Check for continuity between the terminal No. 2 and rearview camera 6P connector terminal No. 4:
There should be continuity.An open or high resistance in the wire. Check for continuity between the terminal No. 2 and body ground:
There should be no continuity.A short to ground in the wire 1 BLK Disconnect the rearview camera 6P connector Check for continuity between the terminal No. 1 and rearview camera 6P connector terminal No. 3:
There should be continuity.An open or high resistance in the wire. Check for continuity between the terminal No. 1 and body ground: There should be no continuity. A short to ground in the wire 7 GRY Disconnect the rearview camera 6P connector Check for continuity between the terminal No. 7 and rearview camera 6P connector terminal No. 2:
There should be continuity.An open or high resistance in the wire.