Component Testing
- Measure for 70-110 ohms of resistance between terminals 85 and 86 of the fuel pump relay.
- If the resistance is not within the specified range, replace the fuel pump relay.
- Measure for infinite resistance between the following terminals of the fuel pump relay:
- 30 and 86
- 30 and 87
- 30 and 85
- 85 and 87
- If continuity is detected, replace the fuel pump relay.
- Connect a 20-amp fused jumper wire from the positive terminal of the battery to relay terminal 85. Connect a jumper wire from the negative terminal of the battery to relay terminal 86. Measure for less than 2 ohms between terminals 30 and 87 of the relay.
- If the resistance measures more than 2 ohms, replace the fuel pump relay.