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EFI MAIN RELAY Toyota Tundra I

Engine Controls - System & Component Testing - V6 & V8 1 illustration ~113 words

EFI MAIN RELAY

Note. EFI main relay is used on all models and may also be referred to as EFI relay.

  1. Ensure ignition is off. Remove EFI main relay from fuse/relay box at driver's side front corner of engine compartment, near battery.
  2. To test EFI main relay continuity, using ohmmeter, check for continuity and no continuity between specified terminals on EFI main relay. see scheme 85- (Scheme 168).
  3. To test EFI main relay operation, apply battery voltage and ground to EFI main relay and use ohmmeter to check for continuity between specified terminals on EFI main relay. see scheme 85- (Scheme 168). Replace EFI main relay if defective.

Scheme 168

Scheme 168
Scheme 168