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6E–74 ENGINE DRIVEABILITY AND EMISSIONS No Malfunction Indicator Lamp (MIL) D06RW00006 Circuit Description The “Check Engine” lamp (MIL) should always be Diagnostic Aids An intermittent MIL may be cased by a poor connection, D Inspect the PCM harness and connections for D If the engine runs OK, check for a faulty light bulb, an D If the engine cranks but will not run, check for an open Test Description Number(s) below refer to the step number(s) on the condition suggests a faulty PCM ignition feed or 9. Using a test light connected to B+, probe each of the PCM ground terminals to ensure that a good ground PCM Terminal End View for terminal locations of the PCM ground circuits. 12.In this step, temporarily substitute a known good relay for the PCM relay. The horn relay is nearby, |