IGNITION SYSTEM — On-Vehicle Inspection (7M-GE) ON-VEHICLE INSPECTION (7M-GE) SPARK TEST CHECK THAT SPARK OCCURS (a) Disconnect high-tension cord from the distributor. (b) Hold the end approx. 12.5 mm (0.50 in.) from body of vehicle. (c) See if spark occurs while engine is being cranked. HINT: To prevent gasoline from being injected from injectors during this test, crank the engine for no more than 1-2 seconds at a time. If the spark does not occur, perform the test as follows: SPARK TEST NO CHECK CONNECTION OF IGNITION COIL, IGNITER AND DISTRIBUTOR CONNECTORS BAD → Connect securely. OK ↓ CHECK RESISTANCE OF HIGH-TENSION CORDS (See page IG-6) BAD → Replace the cord(s). OK ↓ CHECK POWER SUPPLY TO IGNITION COIL 1. Ignition switch turn to ON. 2. Check that there is battery voltage at ignition coil positive (+) terminal. BAD → Check wiring between ignition switch to ignition coil. OK ↓ CHECK RESISTANCE OF IGNITION COIL (See page IG-9) Resistance (Cold): Primary 0.24—0.30 Ω Secondary 9.2—12.4 kΩ BAD → Replace the ignition coil. OK ↓ CHECK RESISTANCE OF DISTRIBUTOR PICK UP COIL (See page IG-9) BAD → Replace the distributor. OK ↓ CHECK AIR GAP OF DISTRIBUTOR (See page IG-9) Air gap: 0.2 mm (0.008 in.) or more BAD → Replace the distributor. OK ↓ CHECK IGT SIGNAL FROM ECU (See page FI-43) BAD → Check wiring between ECU and distributor, only then try another ECU. OK ↓ TRY ANOTHER IGNITER