ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT STOP LIGHT SWITCH ASSEMBLY
(a) Disconnect the A81 stop light switch assembly connector.
| (b) Measure the voltage and resistance on the wire harness side connector according to the value(s) in the table below. Standard Voltage:
Standard Resistance:
If the result is not as specified, repair or replace the wire harness or connector. |
|
| (c) Connect the A81 stop light switch assembly connector. |
|
(d) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection | Condition |
Specified Condition |
|---|---|---|
|
A81-1 (OUT) - A81-2 (GND) |
Ignition switch off, brake pedal not depressed |
Below 1 V |
|
A81-1 (OUT) - A81-2 (GND) |
Ignition switch off, brake pedal depressed |
11 to 14 V |
|
A81-3 (L) - A81-2 (GND) |
Ignition switch off, brake pedal not depressed |
Below 1 V |
|
A81-3 (L) - A81-2 (GND) |
Ignition switch off, brake pedal depressed |
11 to 14 V |
|
A81-4 (ACC) - A81-2 (GND) |
Always | 11 to 14 V |
|
A81-5 (L) - A81-2 (GND) |
Ignition switch ON, brake pedal not depressed |
11 to 14 V |
|
A81-5 (L) - A81-2 (GND) |
Ignition switch ON, brake pedal depressed |
Below 1 V |
If the result is not as specified, replace the stop light switch assembly.
Removal
Driver Side Door ECU Communication Stop (B2321)