1, 2 and 3 Digit Codes: 101

Trouble Code Number
- Scan tool 101
- General scan tool (none listed)
- MIL 42

Fault Message
- Fuel Pump Relay Control Circuit

Background
- Operation of the fuel pump relay is controlled by the PCM which supplies a ground path for the relays coil.

Range of Check
- Battery voltage: 10 V or more
- Ignition switch: ON

Set Condition
- Open or short circuit is detected in fuel pump relay control circuit for 3 seconds.

Probable Cause
- Relay coil open or shorted
- Ignition switch output circuit open
- Fuel pump relay control circuit open or shorted
- Inoperative circuit driver in PCM