Battery Source & Ground
- Disconnect 15-pin and 20-pin connectors. Check continuity between terminals 5, K and ground. See Figure and Figure . Check voltage between terminal D and ground. There should be battery voltage.
- If okay, test is complete. If not, repair harness. If harness is okay, test is complete. If no good, check EFI relay. See Fig 1 . Relay should show continuity as listed in table. If not, replace relay.
EFI RELAY CONTINUITY
| Terminals | With 12V Between 1 & 2 | With 0V Applied |
|---|---|---|
| 1-2 | N/A | Continuity |
| 3-5 | Continuity | No Continuity |
| 3-6 | No Continuity | Continuity |