1, 2 and 3 Digit Codes: 10

Scan Tool 10 (MIL 42):

Trouble Code Number
- Scan tool 10
- General Scan Tool (None listed)
- MIL 42

Fault Message
- MFI relay (ASD relay) Control Circuit

Background
- The MFI relay (ASD relay) controls the battery voltage supplied to the fuel injectors, ignition coils. and generator.
- The PCM provides a ground path for the MFI relay (ASD relay).
- This DTC indicates an open or short-circuit condition in the control circuit.

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

Set Condition
- Open or short circuit is detected in the MFI relay (ASD relay) for 3 seconds.

Probable Cause
- Relay coil open or shorted
- MFI relay (ASD relay) control circuit open or shorted
- Inoperative circuit driver in PCM