Throttle Position Sensor. Mass Air Flow Sensor.
Get the code yourself.
Self-diagnostic system will operate in one of 2 modes. Self-diagnostic system normal operational mode is Mode I. With ignition switch in ON position and engine not running, connect a jumper wire between harness connector terminals "A" (Gray/Blue wire) and "B" (Blue/White wire), wait at least two seconds, and remove. System is now in Mode II. Reconnect harness connectors. See Fig. 1. System is now in Mode II. Reconnect harness connectors.
Modes cannot be switched while engine is running. When ignition switch is turned to OFF position while in Mode II, ECM switches to Mode I.
Mode II (Self-Diagnostics)
When Mode II is accessed (engine not running), codes stored in ECM memory will be flashed by MIL (CHECK ENGINE light).
Long flashes (.6 second) indicate first digit of code. Short flashes (.3 second) indicate second digit of code. For example: one long flash followed by 2 short flashes indicate a Code 12.
Wednesday, March 28th, 2012 AT 1:04 PM