Expo AWD L4-2350cc 2.4L SOHC 16 Valve (1993)
Neutral Safety Switch: Testing and Inspection
Ignition and Inhibitor Switches
Manual Transmission
Ignition Switch Circuit M/T
To inspect the ignition "Start Signal", proceed as follows.
HARNESS TEST
1. Disconnect the ECM connector and turn the key to the START position.
2. Using a voltmeter, check the voltage between the ECM harness connector terminal 51 and ground.
Voltage:
8 or more Volts.
3. Turn the key to the OFF position and check for continuity between ECM harness connector terminal 71 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.
Automatic Transmission
