Isuzu Workshop Service and Repair Manuals

Vehicle Speed Sensor: Specifications

IGNITION TIMING...........................................................................................................................................................................12° BTDC @ 900 rpm

VOLTAGE AND RESISTANCE

Air Regulator

Resistance.....................................................................................................................................................................................................48 - 52 ohms

Canister Purge Vacuum Switching Valve

Resistance...............................................................................................................................................................................................approx. 36 ohms

Coolant Temperature Sensor

-10°C (14°F)................................................................................................................................................................................................7 - 12K ohms
10°C (50°F)...................................................................................................................................................................................................3 - 5K ohms
20°C (68°F)...................................................................................................................................................................................................2 - 3K ohms
50°C (122°F)..............................................................................................................................................................................................0.7 - 1K ohms
80°C (176°F)...........................................................................................................................................................................................0.2 - 0.4K ohms

Dropping Resistor

Between center terminal and any other terminal...............................................................................................................................................5 - 7 ohms

EGR Vacuum Switching Valve

Resistance...............................................................................................................................................................................................approx. 36 ohms

Fuel Injectors

Resistance across terminals..............................................................................................................................................................................2 - 3 ohms

Fuel Pump Relay

Between terminals WR and B.................................................................................................................................................................approx. 80 ohms

Ignition Coil

Primary resistance..................................................................................................................................................................................0.81 - 0.99 ohms
Secondary resistance..........................................................................................................................................................................7.52 - 11.28K ohms

Knock Sensor

Resistance..........................................................................................................................................................................................more than 1M ohms

Oxygen Sensor

Output voltage range............................................................................................................................................................................approx. 0.3 - 0.8V

Pressure Regulator Vacuum Switching Valve

Resistance...............................................................................................................................................................................................approx. 36 ohms

Vehicle Speed Sensor

Signal to ECM..............................................................................................................................................................................4 pulses per revolution