Gauges Self-Diagnostic Function

The gauge control module has a self-diagnostic function which consists of the following checks:

	The indicator drive circuit check.
	The switch input check.
	The beeper drive circuit check.
	The LCD/MID segment check.
	The gauge drive circuit check (speedometer and tachometer).
	The ambient meter color variation check.
	The communication line check (of the body controller area network (B-CAN) communication line, the fast controller area network (F-CAN) communication line between the gauges).

NOTE: Indicators are also controlled via the communication lines.

Entering the Self-Diagnostic Function With the HDS

Using the HDS, select BODY ELECTRICAL, GAUGES, then FUNCTIONAL TESTS and do the self-diagnostic function.

Entering the Self-Diagnostic Function (Manual Method)

Before doing the self-diagnostic function, make sure the No. B29 fuse and No. C34 fuse are OK.

1.	Press and hold the SEL/RESET knob.

2.	Turn the combination light switch to the PARKING position ().

3.	Turn the vehicle to the ON mode.

4.	Within 5 sec., turn the combination light switch OFF, then to the PARKING position () and OFF again.

Within 5 sec., release the SEL/RESET knob, and then repeatedly press and release the switch three times.

NOTE:

	While in the self-diagnostic mode, the dashlights brightness controller operates normally.
	While in the self-diagnostic mode, the SEL/RESET knob is used to start the Beeper Drive Circuit Test and the Gauge Drive Circuit Check.
	If the vehicle speed exceeds 1.2 mph (2 km/h), or the vehicle is turned to the OFF (LOCK) mode, the self-diagnostic mode ends.

The Indicator Drive Circuit Check

When entering the self-diagnostic mode, the following indicators (if equipped) blink:
ABS indicator, brake system indicator, auto high-beam indicator, charging system indicator, CMBS indicator, cruise control indicator, cruise main indicator, door and tailgate open indicator, ECON mode indicator, EPS indicator, fog light indicator, high beam indicator, high temperature indicator, immobilizer indicator, keyless access indicator, lights-on indicator, low fuel indicator, low oil pressure indicator, low temperature indicator, low tire pressure/TPMS indicator, maintenance minder indicator, malfunction indicator lamp (MIL), message indicator, RDM indicator, seat belt reminder indicator, security indicator, SRS indicator, starter system indicator, turn signal indicators, VSA indicator, VSA OFF indicator, and washer fluid level indicator.

The Ambient Meter Color Variation Check

When entering the self-diagnostic mode, the color of the ambient meter varies to blue, blue/green, and green in that order.

The Switch Input Check

At the initial stage of the self-diagnostic function, the beeper sounds intermittently. The beeper sounds continuously when any of the following switch inputs are switched from OFF to ON:
ACC/cruise control combination switch, brake fluid level switch, CMBS OFF switch, ECON switch, parking brake switch, select/reset/information switch, TPMS switch, VSA OFF switch, and washer fluid level switch.

The Beeper Drive Circuit Check

When entering the self-diagnostic mode, the beeper sounds five times.

The LCD/MID Segment Check

Without multi-information display: When entering the self-diagnostic mode, all the segments blink five times.

With multi-information display: When entering the self-diagnostic mode, the word ''CHECKING NOW'' shows on the multi-information display, and blinks five times.

The Gauge Drive Circuit Check

When entering the self-diagnostic mode, the speedometer and the tachometer sweep from the minimum position to the maximum position, then return to the minimum position.

NOTE: After the beeper stops sounding and the gauge needles return to the minimum position, pushing the SEL/RESET knob starts the Beeper Drive Circuit Check (one beep) and the Gauge Drive Circuit Check again. The check cannot be started again until the gauge needles return to the minimum position.

The Communication Line Check (Without Multi-Information Display)

While in the self-diagnostic mode, the Communication Line Check starts after the LCD Segments Check.

If the communication line is OK, all segments will be indicated on the information display. If there is a communication line error, the word ''ERROR'' will be indicated on the information display.

Error Code List

Error code	Type of communication line(s) error
Error 1	F-CAN communication
Error 2	B-CAN communication
Error 12	F-CAN and B-CAN communication

Indication Example

	If Error 1 is indicated, there is a malfunction in the communication line between the F-CAN and the gauge control module. The B-CAN is OK at this time. Check for DTCs in the F-CAN connected units and troubleshoot any DTCs.
	If Error 2 is indicated, there is a malfunction in the communication line between the B-CAN and the gauge control module. The F-CAN line is OK at this time.
	If Error 12 is indicated, there is a malfunction in the communication line between the gauge control module, the F-CAN, and the B-CAN. Check the DTCs in the F-CAN connected units and troubleshoot any DTCs.

The Communication Line Check (With Multi-Information Display)

While in the self-diagnostic mode, the Communication Line Check starts.

If the communication line is OK, the word "OK" will be indicated on the multi-information display. If there is a communication line error, the word ''ERROR'' will be indicated on the multi-information display.

Error Code List

Error code	Type of communication line(s) error
F-CAN???ERROR	F-CAN communication
B-CAN???ERROR	B-CAN communication

Indication Example

	F-CAN???ERROR: There is a malfunction in the communication line between the gauge control module and F-CAN. Check for DTCs in the PCM, and troubleshoot the indicated DTCs.
	B-CAN???ERROR: There is a malfunction in the communication line between the gauge control module and B-CAN. Check for DTCs in the body electrical system and troubleshoot the indicated DTCs.

Ending the Self-Diagnostic Function

Turn the vehicle to the OFF (LOCK) mode.

NOTE: If the vehicle speed exceeds 1.2 mph (2 km/h), the self-diagnostic function ends.