Honda Accord 2008 Manual page 2345

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07/11/02 09:40:10 61TA0000_220_0315

Self-diagnostic Function

NOTE: Before testing, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test

Mode A (see page 22-120).

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

• The beeper drive circuit check.

• The indicator drive circuit check.

• The switch input test.

• The LCD segments check.

• The gauges drive circuit check (Tachometer, Fuel gauge, Speedometer, Engine coolant temperature gauge.

• The communication line check (of the body-controller area network (B-CAN) communication line and the fast-

controller area network (F-CAN) communication line between the gauges).

Indicators are also controlled via the communication line.

Entering the self-diagnostic function with the HDS

Using the HDS, select Body Electrical, Gauges, then Function Test and do the self-diagnostic function.

Entering the self-diagnostic function (manual method)

Before doing the self-diagnostic function, make sure the No. 5 (7.5 A) fuse in the driver's under-dash fuse/relay box

and the No. 15 (10 A) fuse in the under-hood fuse/relay box are OK.

1. Push and hold the SEL/RESET switch button.

2. Turn the combination light switch (

3. Turn the ignition switch to ON (II).

4. Within 5 sec., turn the combination light switch (

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

• While in the self-diagnostic mode, the dash lights brightness controller operates normally.

• While in the self-diagnostic mode, the SEL/RESET button 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 ignition switch is turned to LOCK (0), the self-diagnostic mode

ＴＡ０８ＡＥ４Ｊ２２１００００００００ＢＢＡＴ００

) OFF, then ON and OFF again.

Move to self-diagnostic mode.

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