Mechanics

CRUISE CONTROL

2002 Honda Civic

Electrical problem
2002 Honda Civic 4 cyl Two Wheel Drive Manual 91000 miles

I spilled some juice on the steering wheel and the cruise control stopped working. I changed the switch that is attached to the steering wheel, but, it didn't fix the problem. Got any ideas?
Avatar
Stowman47
January 2, 2009.




Hi stowman47,

Thank you for the donation.

Does the main switch light shows when switch is turned on?

Other things to check are : Check the No. 10 (7.5A) and No. 4 (10A) fuses in the under- dash fuse/relay box, and the No. 7 (15A) fuse in the under-hood fuse/relay box.
Check that the horn sounds.
Check the tachometer to see if it works properly.
AD

KHLow2008
Jan 2, 2009.
RE: Cruise stopped working after juice was spilled on Steering Wheel. Changed Wheel Mtd. Switch, did not help. You suggested checking fuses #10, 4, & Under hood #7. All of them are ok. The horn works and the tach is fine. Any other ideas?

Tiny
Stowman47
Jan 3, 2009.
Hi stowman47,

Too bad the easy part did not solve the problem. Now we have to get to more detailed testing procedures.

The fluid could have caused shorting in the control unit and to narrow down the possible causes, I have attached the procedures for you to test.

CRUISE CONTROL COMMUNICATION CIRCUIT TROUBLESHOOTING
A/T, CVT
1. Start the engine.
2. Turn on the cruise control main switch, then drive the vehicle to speeds over 25 mph (40 km/h) with the cruise control.
Does the cruise control operate?
YES - Go to step 3.
NO - Check these items:
Except 2-door D17A1 and D17A2 engines:
Check the cruise control unit (see Cruise Control Unit Input Test ) or cruise control actuator (see Cruise Control Actuator Test ).

2-door D17A1 and D17A2 engines:
Check the cruise control actuator (see Cruise Control Actuator Input Test ).

3. Turn the ignition switch OFF.

4. Disconnect engine control module (ECM)/powertrain control module (PCM) connector E (31P) and cruise control unit 14P connector.

5. Check for continuity between ECM/PCM connector terminal E12 and body ground.


http://www.2carpros.com/forum/automotive_pictures/192750_CruiseWire02Civic01_1.jpg



Is there continuity?
YES - Repair a short to ground in the wire between PCM connector terminal E12 and the cruise control unit 14P connector terminal No. 8.
NO - Go to step 6.

6. Reconnect ECM/PCM connector E (31P) and the cruise control unit 14P connector.

7. Connect a voltmeter between the No. 8 terminal of the cruise control unit 14 P connector and body ground. Test-drive the vehicle at speeds over 25 mph (40 km/h) with the cruise control set, and watch the voltmeter.


http://www.2carpros.com/forum/automotive_pictures/192750_CruiseWire02Civic02_1.jpg



Is there about 1 V?
YES - Go to step 8.
NO - Substitute a known-good control unit. If the system works properly, replace the cruise control unit.

8. Connect a voltmeter between ECM/PCM connector terminal E12 and body ground. Drive the vehicle at speeds over 25 mph (40 km/h) with the cruise control set, and watch the voltmeter.

Is there about 1 V?
YES - Check for loose connections of the BLU/ORN wire between the cruise control unit and the ECM/PCM. Update the ECM/PCM if it does not have the latest software, or substitute a known-good ECM/PCM, then recheck. If the symptom/indication goes away with a known- good ECM/PCM, replace the original ECM/PCM
NO - Repair open in the wire between ECM/PCM connector terminal E12 and the control unit 14P connector terminal No. 8.


KHLow2008
Jan 3, 2009.

AD