Ohms Values

For Terminal ID please refer to "Engine Control Module : Diagrams : Connector Views". Connector Views

CAUTION: When measuring Ohms disconnect the ECU from the harness plug and never turn the ignition key on. It is possible that failure to follow these steps will result in damage to the ECU.

GROUNDS
KEY OFF
Pin 19 to G1 CONTINUITY
Pin 24 to 19 CONTINUITY

MAGNETIC COIL SENSORS
Sensor type
Pin 47 to 48 (speed/Mark) 490 - 550 Ohms
Pin 8 to 31 (Cyl ID) 0.2 - 1.0 Ohms

COOLANT TEMPERATURE SENSOR
Pin 45 to 19
68°F 2200 - 2700 Ohms
176-194°F 700 - 1000 Ohms

AIR TEMPERATURE SENSOR
Pin 44 to 26
68°F 2200 - 2700 Ohms
104° - 122°F 700 - 1000 Ohms

THROTTLE SWITCH
Pin 52 to 14 (Closed) 0.0 - 2.0 Ohms
Pin 53 to 14 (Full load) 0.0 - 2.0 Ohms

FUEL PUMP RELAY
Pin 37 to 3
Coil winding 80 - 90 Ohms

AIR FLOW SENSOR
At rest
Pin 12 to 26 (supply) 450 - 600 Ohms
Pin 7 to 26 (load) 30 - 110 Ohms
Flap on air tiow sensor closed or air flow sensor plate at rest position. Resistance increases as flap or plate opens.
Pin 7 to 26 (load) 300 - 500 Ohms
Flap on air flow sensor opened to maximum or air flow plate deflected to maximum.

SINGLE INJECTOR
Winding
Across injector contacts 15 - 17 Ohms

INJECTOR GROUP(S)
Winding
Pin 37 to 16 5.8 - 6.3 Ohms
Pin 37 to 17 5.8 - 6.3 Ohms

ISC VALVE
Winding(s)
Pin 4 to 22 40 - 50 Ohms
Pin 37 to 22 21 - 25 Ohms
Pin 37 to 4 21 - 25 Ohms