Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: Inspection

INSPECTION

PROCEDURE

1. INSPECT ENGINE SWITCH

(a) Check the resistance.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

5 (SS1) - 6 (AGND)

1 (SS2) - 6 (AGND)

Not pushed

10 kΩ or higher

Pushed

Below 1 Ω

If the result is not as specified, replace the engine switch.

*a	Component without harness connected (Engine Switch)

(b) Check the LED illumination.

(1) Apply battery voltage between the terminals of the engine switch and check the illumination condition of the engine switch indicator light.

OK:

Condition

Specified Condition

Battery positive (+) → Terminal 9 (SWIL)

Battery negative (-) → Terminal 6 (AGND)

Illuminates

HINT:

If the positive (+) lead and the negative (-) lead are incorrectly connected, the engine switch indicator light will not illuminate.
If the voltage is too low, the engine switch indicator light will not illuminate.

If the result is not as specified, replace the engine switch.

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Safety Connect System(for Hv Model): Manual (SOS) Switch Red Indicator Malfunction (B1570)
DESCRIPTION This DTC is stored when the DCM (Telematics Transceiver) detects an open or short in the manual (SOS) switch red indicator circuit of the manual (SOS) switch. The manual (SOS) switch red indicator illuminates for 2 seconds and goes off when the power switch is turned on (IG). If a malfun ...

Toyota Avalon (XX50) 2019-2022 Owners Manual