Toyota CH-R Service Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT STOP LIGHT SWITCH ASSEMBLY

(a) Disconnect the A45 stop light switch assembly connector.

*a

Front view of wire harness connector

(to Stop Light Switch Assembly)

(b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

A45-7 (B) - A45-2 (GND)

Ignition switch off

11 to 14 V

A45-6 (B) - A45-2 (GND)

Ignition switch on (IG)

11 to 14 V

Standard Resistance:

Tester Connection

Condition

Specified Condition

A45-2 (GND) - Body ground

Always

Below 1 Ω

If the result is not as specified, repair or replace the wire harness or connector.

(c) Reconnect the A45 stop light switch assembly connector.

*a

Component with harness connected

(Stop Light Switch Assembly)

(d) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Condition

Specified Condition

A45- 1 (OUT) - A45-2 (GND)

Ignition switch off, brake pedal not depressed

Below 1 V

A45-1 (OUT) - A45-2 (GND)

Ignition switch off, brake pedal depressed

11 to 14 V

A45-3 (L) - A45-2 (GND)

Ignition switch off, brake pedal not depressed

Below 1 V

A45-3 (L) - A45-2 (GND)

Ignition switch off, brake pedal depressed

11 to 14 V

A45-4 (ACC) - A45-2 (GND)

Ignition switch off

11 to 14 V

A45-5 (L) - A45-2 (GND)

Ignition switch on (IG), brake pedal not depressed

11 to 14 V

A45-5 (L) - A45-2 (GND)

Ignition switch on (IG), brake pedal depressed

Below 1 V

If the result is not as specified, replace the stop light switch assembly.

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