Toyota Avalon (XX50): Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT IG1 NO. 3 RELAY

(a) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection	Condition	Specified Condition
3 - 5	Voltage not applied between terminals 1 and 2	10 kΩ or higher
3 - 5	Voltage applied between terminals 1 and 2	Below 1 Ω

If the result is not as specified, replace the IG1 No. 3 Relay.

*a	Component without harness connected (IG1 No. 3 Relay)

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Hybrid Control System: Hybrid/EV Battery "A" Voltage Sensor/Boosting Converter Voltage Sensor "A" Signal Compare Failure (P1C2D62)
DTC SUMMARY MALFUNCTION DESCRIPTION The hybrid vehicle control ECU detects a VB sensor or VL sensor malfunction. The cause of this malfunction may be one of the following: Inverter voltage (VB or VL) sensor internal circuit malfunction Voltage sensor malfunction Motor generator control ECU (MG ECU) ...