On-Vehicle Inspection [08/2015 - 08/2018]: Procedure
WARNING: This page is about a different car, the 2018 Toyota Sequoia, 2017 Toyota Sequoia, and 2016 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT CIRCUIT OPENING RELAY (C/OPN)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 3 - 5 Battery voltage is not applied to terminals 1 and 2 10 kΩ or higher Battery voltage is applied to terminals 1 and 2 Below 1 Ω If the result is not as specified, replace the circuit opening relay.
- Measure the resistance according to the value(s) in the table below.
- INSPECT INTEGRATION RELAY (IG2)
- Measure the resistance of the IG2 MAIN fuse.
- Measure the resistance of the ignition relay No. 2 (IG2) circuit.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 1C-1 - 1B-8 Battery voltage is not applied to terminals 1B-6 and 1B-7 10 kΩ or higher Battery voltage is applied to terminals 1B-6 and 1B-7 Below 1 Ω If the result is not as specified, replace the integration relay.
- Measure the resistance according to the value(s) in the table below.
- INSPECT INTEGRATION RELAY (EFI)
- Measure the resistance of the EFI No. 1 fuse.
- Measure the resistance of the EFI MAIN relay circuit.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 1C-1 - 1B-4 Battery voltage is not applied to terminals 1B-2 and 1B-3 10 kΩ or higher Battery voltage is applied to terminals 1B-2 and 1B-3 Below 1 Ω If the result is not as specified, replace the integration relay.
- Measure the resistance according to the value(s) in the table below.
- INSPECT INTEGRATION RELAY (A/F)
- Measure the resistance of the A/F fuse.
- Measure the resistance of the A/F sensor heater relay circuit.
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 1C-1 - 1A-4 Battery voltage is not applied to terminals 1A-2 and 1A-3 10 kΩ or higher Battery voltage is applied to terminals 1A-2 and 1A-3 Below 1 Ω If the result is not as specified, replace the integration relay.
- Measure the resistance according to the value(s) in the table below.
- INSPECT FUEL PUMP RELAY (F/PMP)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 3 - 5 Battery voltage is not applied to terminals 1 and 2 10 kΩ or higher Battery voltage is applied to terminals 1 and 2 Below 1 Ω If the result is not as specified, replace the fuel pump relay.
- Measure the resistance according to the value(s) in the table below.
- INSPECT FUEL PRESSURE CONTROL VALVE RELAY (F/PMP VSV)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 3 - 5 Battery voltage is not applied to terminals 1 and 2 10 kΩ or higher Battery voltage is applied to terminals 1 and 2 Below 1 Ω If the result is not as specified, replace the fuel pump control valve relay.
- Measure the resistance according to the value(s) in the table below.
- INSPECT AIR PUMP HEATER RELAY (AI-HTR)
- Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition 3 - 5 Battery voltage is not applied to terminals 1 and 2 10 kΩ or higher Battery voltage is applied to terminals 1 and 2 Below 1 Ω If the result is not as specified, replace the air pump heater relay.
- Measure the resistance according to the value(s) in the table below.