EFI Relay

EFI RELAY

ON-VEHICLE INSPECTION

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation.

2. INSPECT INTEGRATION RELAY (UNIT B: EFI RELAY M RELAY)

NOTE:
- The EFI relay is built into the integration relay (unit B: EFI MAIN).
- Some relays are built into the integration relay. The integration relay cannot be disassembled. If there is a malfunction in the circuit of the integration relay, replace the integration relay.




a. Using a screwdriver, detach the 2 claws and disconnect the integration relay from the engine room No. 1 junction block.

HINT: Tape the screwdriver tip before use.

b. Disconnect the 3 connectors from the integration relay.







c. Measure the resistance between the terminals.

If the result is not as specified, replace the integration relay.

d. Connect the 3 connectors to the integration relay.
e. Install the integration relay to the engine room No. 1 junction block.

3. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
4. PERFORM INITIALIZATION
a. Perform initialization.

NOTE: Certain system need to be initialized after disconnecting and reconnecting the cable from the negative (-) battery terminal.