On Board Diagnosis Function

ON BOARD DIAGNOSIS ITEM

The following meter functions can be checked during combination meter self-diagnosis mode:

Pointer sweep of speedometer, tachometer and gauges.
Illumination of color patterns for meter displays.
Illumination of all lamps/LEDs that are controlled by the combination meter (regardless of switch status).
Error code

METHOD OF STARTING

How to Initiate Self-Diagnosis Mode

Turn ignition switch OFF.
While pressing the control switch , turn ignition switch ON.
Keep pressing the control switch for 1 seconds or more.
Press the control switch at least 3 times. (Within 7 seconds after the ignition switch is turned ON.)

“Work instruction code” is indicated in the top portion of information display and self-diagnosis is started.

note	When on-board diagnosis does not start, check the following items and replace combination meter if the check results are normal. Combination meter power supply and ground circuits. Refer to Diagnosis Procedure. Steering switch signal circuits. Refer to Component Function Check.

The mode switches in the order shown below each time the control switch is pressed.

note	If the control switch is not operated for 20 seconds or more, the self-diagnosis mode is automatically cancelled. The self-diagnosis mode is cancelled by turning the key switch OFF. The self-diagnosis mode is cancelled by engine speed 170 rpm or more.

Test order

Test item

Description

Work instruction code

This item is displayed, but not used.

Spare parts No.

Soft ware code

Flash rom No.

EEPROM code

Hardware code

PCB code

Circuit check

The pointer of the following items moves from 0 to MAX then from MAX to 0.

note	If any one of the pointers does not sweep, replace combination meter.

7 – 10

Color check

Performs the color check of the information display.

Error code^*

Displays the error code of the following items.

Warning/indicator light check

All warning/indicator light illuminate.

note	Security indicator light are not illuminate.

note	When the control switch is pressed during the indication of "Test order 12", test item returns to "Test order 2".

*: Error Code

Item		Code	Description	Action to take/Reference
	Speedometer	0	Normal	—
		1	A vehicle speed signal can not be received from ECM.	Perform “Self Diagnostic Result” of “ECM.” Refer to DTC Index.
		2	A vehicle speed signal received from ECM is abnormal. (FFFFh)
	Tachometer	0	Normal	—
	Tachometer	1	An engine speed signal cannot be received from ECM.	Perform “Self Diagnostic Result” of “ECM.” Refer to DTC Index.
	Fuel gauge	0	Normal	—
		1	Fuel gauge circuit is short.	Refer to Component Function Check.
		2	Fuel gauge circuit is open.	Refer to Component Function Check.
	Engine coolant temperature gauge	0	Normal	—
	Engine coolant temperature gauge	1	An engine coolant temperature signal cannot be received from ECM.	Perform “Self Diagnostic Result” of “ECM.” Refer to DTC Index.
	Illumination control switch Steering switch (control switch)	0	Normal	—
		1	When judging that the illumination control switch signal circuit is short-circuited for 5 minutes or more.	Refer to Component Function Check.
		2	When judging that the steering switch (control switch) signal circuit is short-circuited for 5 minutes or more.	Refer to Component Function Check.
		3	When judging that the illumination control switch and steering switch (control switch) signal circuit are short-circuited for 5 minutes or more.	Refer to Component Function Check and Component Function Check.
	—	0	Displays “0” constantly.	—
	—	0	Displays “0” constantly.	—
	—	0	Displays “0” constantly.	—