Operation CHARM: Car repair manuals for everyone.

Fuel Pump Control Unit: Specifications

With a Voltmeter, check for supplied voltage at fuel pump connector:

- 1 second after ignition switch is turned ON Battery Voltage
- Engine cranking Battery Voltage
- 5 seconds after engine start
[above 50°C (122°F)] Battery Voltage
- Engine coolant temperature below 0°C (32°F) Battery Voltage
- Engine running under heavy load conditions Battery Voltage
- Engine is running under
middle load conditions Battery Voltage

- Except above 8.0 Volts DC