Initial Inspection and Diagnostic Overview
Self-diagnostic FunctionThe gauge assembly has a self-diagnostic function.
- The beeper drive circuit check
- The indicator drive circuit check
- The LCD segments check
- The gauges drive circuit check (speedometer, tachometer, fuel gauge, coolant temperature gauge)
- The communication line check (the coolant temperature signal line between the gauge and ECM)
NOTE: Indicators are also controlled via the communication line. Entering the self-diagnostic function
Entering The Self-diagnostic Function
Before doing the self-diagnostic function, check the No. 9 (10 A) fuse in the under-hood fuse/relay box and No. 10 (7.5 A) fuse in the under-dash fuse/relay box.
1. Push and hold the trip/reset button.
2. Turn the lighting switch ON.
3. Turn the ignition switch ON (II).
4. Within 5 sec, turn the lighting switch OFF, then ON and OFF again.
5. Within 5 sec, release the trip/reset button, then push and release the button three times repeatedly.
NOTE:
- While in the self-diagnostic function, the dash lights brightness controller operates normally.
- While in the self-diagnostic function, the trip/reset button is used to start the beeper drive circuit check and the gauge drive circuit check.
- If the vehicle speed exceeds 1.2 mph (2 km/h) or the ignition switch is turned OFF, the self-diagnostic function ends.
The Beeper Drive Circuit Check
When entering the self-diagnostic function, the beeper sounds five times.
The Indicator Drive Circuit Check
When entering the self-diagnostic function, the following indicators blink. Seat belt indicator. Door/hatch indicator. Brake system. Low fuel indicator. Maintenance required indicator (USA), Washer fluid level indicator (Canada), Oil pressure light.
The LCD Segment Check
When entering the self-diagnostic function, the odo/trip segment blinks five times.
The Gauge Drive Circuit Check
When entering the self-diagnostic function, the speedometer, the tachometer, the fuel gauge, and the coolant temperature gauge needles sweep from the minimum position to maximum position, then return to the minimum position.
NOTE: After the beeper stops sounding and the needles return to the minimum position, pushing the trip/reset button starts the beeper drive circuit check (one beep) and the gauge drive circuit check again. The check cannot be started until the needles return to the minimum position.
The Communication Line Check
After the odo/trip LCD segments check, the self-diagnostic starts the communication line check.
If all segments come on, the communication line is OK.
If the word "Error" is indicated, there is a malfunction in the communication line between the gauge assembly, the multiplex control unit, the keyless receiver unit and the ECM.
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.