Fuel Pump 2 In-Line / Fuel Pump Relay 2, Checking: Notes
Models with an airbag are installed with a crash fuel shut-off system. It reduces the danger of a fire in a crash as the fuel pump is switched off via the fuel pump relay.
Special tools and workshop equipment required
- Multimeter.
- Electrical connector test lead set.
Test conditions
- Battery voltage at least 12.5 volts.
- Fuel filter OK.
- Ignition switched off.
Test procedure
-- Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK
Start diagnosis
Make sure the engine is at room temperature.
-- Disconnect the Fuel Pump Relay 2 -J49- electrical harness connector. Refer to applicable wiring diagram for proper relay location.
-- Switch the ignition ON.
-- Using a Multimeter, Check the Fuel Pump Relay 2 -J49- electrical harness connector terminals 1 and 3 to Engine ground, for voltage.
Specified value: Battery Voltage
-- Switch the ignition Off.
Continue test according to the following table:
| Value | Cause | Test |
|---|---|---|
| If the specified value was not obtained: | Open or shorted circuit | Checking wiring |
| If the specified value was obtained: | Check reference signal circuit | Checking Activation |
| Value | Cause | Test |
|---|---|---|
| If the specified value was not obtained: | Open or shorted circuit | Checking wiring |
| If the specified value was obtained: | Check reference signal circuit | Checking Activation |