Rick's Free Auto Repair Advice

Cranks but no start P0351 P0352 P0353

Cranks but no start P0351 P0352 P0353

If you have a scan tool, command the PCM to perform the actuator test mode to test the ignition coils.
Next, use a digital meter to check the voltage output at the body control module form the ignition switch. ignition switch, body control module, front control module, accessory relayWith the key out, you should see 4.6 volts, key in 4.6 volts, accessory position 3.2 volts, unlock 2.2 volts, run 1.12 volts, start 0.41 volts.
If you’re not seeing those voltages, then the BCM will not send the proper digital message to the PCM and the main computer will not know the engine is cranking. So it will set the trouble codes P0351, P0352, P0353, when in fact the problem lies in the ignition switch. The fix is to replace the ignition switch if the voltages aren’t correct.

For more information on this repair or any others for your vehicle, buy an online subscription to either Alldatadiy.com or eautorepair.net. Click on this link to compare the two services: Compare Alldata and Eautorepair.

© 2012 Rick Muscoplat

Posted on by Rick Muscoplat

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