My engine light was on I went to AutoZone they did the Diagnostics and said there was nothing wrong but they couldn't reset my engine light how do I reset the engine light

SOURCE: service engine soon light 04 nissan titan

make sure the gas cap is tightly sealed. Inspect the gasket on the gas cap

SOURCE: The check engine light is on, the ABS, and the

The P1700 is just a request for the check engine light, and this is caused by the U2108. The U2108 is basically telling you that the Electronic Brake and Traction Control Module (EBTCM) is not communicating with the powertrain control module, or the transmission control module.
The very first thing we must do is verify that the fuses that power the ebtcm are not blown and that they are powered. At this point I would like you to verify that the fuse labeled ABS in the fuse block is not blown and that it is powered with the key in the on position.
I would also like you to verify that the fuse labeled V1 inthe power distribution box is not burnt and that this is powered also. After this we need to move to the ebtcm to verify that you have voltage at pins 15,17,18 and that you have a ground at 19 and 16.

This would verify that the ebtcm is getting the proper voltage supplies to operate. The end result of this may possibly be a faulty ebtcm, but at this point we really need to check these items prior.Feel free to contact me with any questions at this point! Thanks!

SOURCE: 1996 jeep grand cherokee limited. engine is

You should have someone sing a dual trace lab scope, look at the Crank Angle Sensor (CKP) and Cam Angle Sensor (CMP) signals to check quality and sync.

Loose timing chains or broken flex plates can change the sync signal to the Powertrain Control Module (PCM) and cause a stall situation. Also you should have someone load test the battery and check the cables for corrosion. If the battery drops excessively during startup, the idle motor stepper count can be lost, Powertrain Control Module (PCM) will relearn it while driving.

Clean the throttle blades and adjust minimum idle.

With the air cleaner assembly off, hold the throttle wide open and look down the throttle with a flash light. Look at the lower intake plenum gasket for leaks, oil will build up around the edges and in the corners.

Perform distributor sync adjustment. I hope this helps. tried my best.....

SOURCE: 03 Honda Pilot Check Engine Light

yes reset by removing fuse or disconnecting battery make sure you have radio code if disconnecting battery. Problem may be oxy sensor in exhaust.

speedwagen

• 491 Answers
• Posted on Oct 08, 2010

SOURCE: Check engine light stays on - diagnostics say

disconnet the battery and let it sit for an hour or so, then hook back up.

sorry, you will have to reset clock and radio settings