No-Start Test
NOTE:
Perform TESTING SPARK AT COIL
before proceeding with NO-START TEST.
NOTE:
On 3.8L, NO-START TEST checks Camshaft Position (CMP) Sensor and Crankshaft Position (CKP) Sensor.
- Ensure 12.66 volts or more (battery voltage) is available to operate cranking and ignition systems. Disconnect wiring connector from coil pack. Connect a test light between B+ (battery voltage) coil pack wiring connector terminal (Dark Green/Orange wire) and ground. See Fig 3 .
- Turn ignition switch to ON position. DO NOT
turn ignition switch to OFF position. If test light flashes on and then off, PCM energized ASD relay, go to next step. If test light does not flash, ASD relay did not energize, see TESTS W/CODES - 3.8L
article in the ENGINE PERFORMANCE section to check PCM and ASD relay and circuits.NOTE: If ignition switch was turned to OFF position, turn ignition to ON position and wait for test light to flash on and off before proceeding to step 3).
- Crank engine for 5 seconds. If test light momentarily flashes during cranking, PCM is not receiving a signal. Proceed to TESTS W/CODES - 3.8L article in the ENGINE PERFORMANCE section to check CKP and CMP sensor circuits. If test light does not flash during engine cranking, disconnect CKP sensor connector and go to next step.
- Turn ignition switch to OFF position, then to ON position. Wait for test light to momentarily flash once then crank engine. If test light flashes once, replace shorted CKP sensor. If test light does not flash, see TESTS W/CODES - 3.8L article in the ENGINE PERFORMANCE section to check CMP sensor/CKP sensor 8-volt supply or CMP sensor output or ground circuits.