Laser FWD L4-1997cc 2.0L DOHC Turbo (1993)
ECU Ground Circuit
GROUND CIRCUIT
1. Disconnect the ECM connector.
2. Using an ohm meter, check for continuity between ECM harness terminal 101 and ground.
Continuity
Should exist.
3. Using an ohm meter, check for continuity between ECM harness terminal 106 and ground.
Continuity
Should exist.
If any of the previous tests produce unsatisfactory results, the harness will need to be repaired or replaced. Once repairs have been completed, road
test the vehicle to confirm that the repair has corrected the problem.
If the same problem reoccurs, it is possible that there is an intermittent failure of the component or the ECM. Check for looseness at all harness
junctions and test for an intermittent failure.
Idle Learn Procedure, Battery/Power Disconnect
1. Prior to connecting or disconnecting the negative battery cable, turn ignition switch and light switch off.
Caution: Failure to do so may result in damage to semiconductor parts.
2. After reconnecting negative battery terminal start and warm engine. Allow engine to idle for approximately 5 minutes under the following
conditions.
Engine coolant temperature 185 - 203°F (85 - 95°C)
Lights, electric fans, accessories OFF
Transaxle neutral
Steering wheel in center position
