Toyota Avalon Service & Repair Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT AIR FUEL RATIO SENSOR (for Bank 1)

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (HA1A) - 2 (+B)	20°C (68°F)	1.6 to 3.2 Ω
1 (HA1A) - 4 (A1A-)	Always	10 kΩ or higher

If the result is not as specified, replace the air fuel ratio sensor.

*a	Component without harness connected (Air Fuel Ratio Sensor)

2. INSPECT AIR FUEL RATIO SENSOR (for Bank 2)

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

Standard Resistance:

Tester Connection	Condition	Specified Condition
1 (HA2A) - 2 (+B)	20°C (68°F)	1.6 to 3.2 Ω
1 (HA2A) - 4 (A2A-)	Always	10 kΩ or higher

If the result is not as specified, replace the air fuel ratio sensor.

*a	Component without harness connected (Air Fuel Ratio Sensor)

Toyota Avalon Service & Repair Manual > Pre-collision System(for Hv Model): Lost Communication with Gateway Module (U1002)
DESCRIPTION This DTC is stored when the driving support ECU assembly cannot receive signals from the forward recognition camera or millimeter wave radar sensor assembly. DTC No. Detection Item DTC Detection Condition Trouble Area U1002 Lost Communication with Gateway Module After the power switch is ...

Toyota Avalon Owners Manual