Initial Inspection and Diagnostic Overview
Self-diagnostic Function'06-07 models
The gauge assembly has a self-diagnostic function shown, and also has a customize reset function.
- The beeper drive circuit check.
- The indicator drive circuit check.
- The switch input test.
- The LCD segments check.
- The communication line check the engine coolant temperature signal, engine oil life index, fuel data request signal, CHECK FUEL CAP signal, charging system indicator ON/OFF signal, MIL ON/OFF signal, and cruise control system ON/OFF signal line between the gauge assembly and the ECM).
Entering the self-diagnostic function
Before doing the self-diagnostic function, check the No. 5 (7.5 A) fuse and the No. 25 (7.5 A) fuse in the under-dash fuse/relay box.
1. Push and hold the TRIP button.
2. Turn the headlights ON.
3. Turn the ignition switch ON (II).
4. Within 5 sec, turn the headlights OFF, then ON and OFF again.
5. Within 5 sec, release the TRIP button, and then push and release the button three times repeatedly.
NOTE:
- While in the self-diagnostic mode, the dash lights brightness controller operates normally.
- While in the self-diagnostic mode, the TRIP button is used to start the Beeper Drive Circuit Test.
- If the vehicle speed exceeds 1.2 mph (2 km/h) or the ignition switch is turned OFF, the self-diagnostic mode ends.
The Indicator Drive Circuit Check
When entering the self-diagnostic mode, the following indicators blink:
Seat belt reminder light, charging system indicator, low fuel indicator, brake system indicator, cruise control indicator, malfunction indicator lamp (MIL), and smart maintenance indicator.
Switch Input Check
After the intermittent beeper sounds at the initial stage of self-diagnosis, a beeper sounds continuously while any of the following switch inputs are switched from OFF to ON:
Parking brake switch, driver's seat belt switch, rear window defogger switch, windshield wiper INT switch, windshield washer switch, CLOCK button, SEL button, TRIP button, illumination (+) button, and illumination (-) button.
The Beeper Drive Circuit Check
When entering the self-diagnostic mode, the beeper sounds five times.
The LCD Segment Check
When entering the self-diagnostic mode, the all segments blink five times.
The Communication Line Check
While in the self-diagnostic mode, the Communication Line Check starts after the LCD Segments Check.If all segments come on, the communication line is OK. If there is a communication line error, the word "Error" will be indicated on the LCD display.
If the communication line error is found, Go to system troubleshooting. Error Is Indicated on the LCD Display
Ending the self-diagnostic function
Turn the ignition switch OFF.
NOTE: If the vehicle speed exceeds 1.2 mph (2 km/h), the self-diagnostic function ends.