Self-Diagnostic Function: Notes
WARNING: This page is about a different car, the 2011 Honda Pilot, 2010 Honda Pilot, and 2009 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Before testing, troubleshoot the multiplex integrated control unit first, using B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A
).
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 gauge 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).
NOTE:
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. 10 (7.5 A) fuse in the under-dash fuse/relay box and the No. 23 (10 A) fuse in the under-hood fuse/relay box are OK.
- Push and hold the SEL/RESET switch button.
- Turn the combination light switch ON.
- Turn the ignition switch to ON (II).
- Within 5 sec, turn the combination light switch OFF, then ON and OFF again.
- Within 5 sec, release the SEL/RESET switch 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 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 ends.