FUEL SYSTEM (Programmed Fuel Injection)
6-19
ECM POWER/GROUND CIRCUIT
INSPECTION
ENGINE DOES NOT START (MIL DOES
NOT BLINK)
1. Connector inspection
• Before starting the inspection, check for battery voltage.
Turn the ignition switch "OFF".
Disconnect the ECM 33P connector.
Check for loose or poor contact on the ECM 33P
connector.
Connect the ECM 33P connector.
Turn the ignition switch "ON".
Crank the engine with the starter motor.
Does the engine start?
YES – Loose or poor contact on the ECM 33P
connector.
NO – GO TO STEP 2.
2. ECM Ground Line Inspection
Turn the ignition switch "OFF".
Disconnect the ECM 33P connector.
Check for continuity between the ECM 33P con-
nector of the wire harness side and ground.
Is there continuity?
NO – • Open circuit in Green wire.
• Open circuit in Green/Pink wire.
YES – GO TO STEP 3.
3. ECM Power Line Inspection
Turn the ignition switch "ON".
Measure the voltage between the ECM 33P con-
nector of the wire harness side and ground.
Does the battery voltage exist?
YES – Replace the ECM with a new one, and
recheck.
NO – GO TO STEP 4.
CONNECTION: Green – Ground
Green/Pink – Ground
CONNECTION: Black/White (+) – Ground (–)
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