Voltage Values

Connector View

GROUNDS
KEY ON
Pin 6 to G1 0.0 - 0.02V
Pin 28 to G1 0.0 - 0.02V
Pin 34 to G1 0.0 - 0.02V
Pin 55 to G1 0.0 - 0.02V

BATTERY SUPPLY
Pin 26 to 34
KEY OFF 11 - 13V
KEY ON 11 - 13V

MAIN RELAY SUPPLY
Pin 54 to 34
Key OFF 0V
Key ON 11 - 13V

REFERENCE SUPPLY
Pin 59 to 34
Key ON 4.5 - 5.5V

COOLANT TEMPERATURE SENSOR
Pin 78 to 43
68°F 1.5 - 2.0V
176°F - 194°F 0.3 - 0.8V

AIR TEMPERATURE SENSOR
Pin 77 to 14
68°F 1.5 - 2.0V
104°F - 122°F 1.0 - 1.5V

IGNITION SWITCH
Key ON
Pin 56 to 34 11 - 13V
Cranking
Pin 56 to 34 9.6 - 10.5V

AIR CONDITIONER CONTROL
Engine idling
Pin 85 to 55 (A/C on) 11 - 13V
Pin 86 to 55 (A/C on) 11 - 13V

THROTTLE POSITION SENSOR
Pin 12 to 43
Closed 0.2 - 0.7V
Opened 1.0 - 4.0V
Full Load 4.0 - 4.5V

AIR FLOW SENSOR
Key ON
Pin 59 to 14 (supply) 4.5 - 5.5V
Pin 41 to 14 (load) 1.0 - 4.0V
Engine Idling
Pin 59 to 14 (supply) 4.5 - 5.5V
Pin 41 to 14 (load) 2.15 - 2.35V
Pin 13 to 14 (burn-off) 3.5 - 4.5V
Burn-off will function when engine is warm and the RPM has been above 2500. When ignition is turned off, voltage will rise to approx. 4 volts for 3-5 seconds.

FUEL PUMP RELAY
Pin 1 to 6
Key ON 11 - 13V
Cranking 0.0 - 2.0V
Idling 0.0 - 2.0V

EVAPORATIVE PURGE VALVE
Pin 36 to 34 (KEY ON) 11 - 13V

OXYGEN SENSOR
Pin 70 to 71
Key ON 0.4 - 0.5V
Engine Idling 0.1 - 0.8V

OXYGEN SENSOR HEATER
Pin 34 to 37
Engine Idling 0.0 - 1.0V