Lexus ES: On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT STOP LIGHT SWITCH ASSEMBLY
| (a) Disconnect the A80 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 |
|
*1: for HV Model
*2: for Gasoline Model |
| A80-7 (B) - A80-2 (GND) | Always | 11 to 14 V |
| A80-6 (B) - A80-2 (GND) | Power switch on (IG)*1 | 11 to 14 V |
| Engine switch on (IG)*2 |
Standard Resistance:
| Tester Connection | Condition | Specified Condition |
| A80-2 (GND) - Body ground | Always | Below 1 Ω |
If the result is not as specified, repair or replace the wire harness or connector.
(c) Connect A80 the 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 | |
*1: for HV Model
*2: for Gasoline Model | | A80- 1 (OUT) - A80-2 (GND) | Power switch off, brake pedal not depressed*1 | 1.5 V or less | | Engine switch off, brake pedal not depressed*2 | | A80- 1 (OUT) - A80- 2 (GND) | Power switch off, brake pedal depressed*1 | 11 to 14 V | | Engine switch off, brake pedal depressed*2 | | A80-3 (L) - A80-2 (GND) | Power switch off, brake pedal not depressed*1 | 1.5 V or less | | Engine switch off, brake pedal not depressed*2 | | A80-3 (L) - A80-2 (GND) | Power switch off, brake pedal depressed*1 | 11 to 14 V | | Engine switch off, brake pedal depressed*2 | | A80-4 (ACC) - A80-2 (GND) | Always | 11 to 14 V | | A80-5 (L) - A80-2 (GND) | Power switch on (IG), brake pedal not depressed*1 | 7.5 to 14 V | | Engine switch on (IG), brake pedal not depressed*2 | | A80-5 (L) - A80-2 (GND) | Power switch on (IG), brake pedal depressed*1 | 0 to 1.5 V | | Engine switch on (IG), brake pedal depressed*2 | If the result is not as specified, replace the stop light switch assembly. |  | | *a | Component with harness connected (Stop Light Switch Assembly) | | |
READ NEXT:
REMOVAL PROCEDURE 1. REMOVE NO. 1 INSTRUMENT PANEL UNDER COVER SUB-ASSEMBLY Click here 2. REMOVE STOP LIGHT SWITCH ASSEMBLY (a) Disconnect the connector. (b) Turn the stop light swit
INSTALLATION PROCEDURE 1. INSTALL STOP LIGHT SWITCH ASSEMBLY (a) Insert the stop light switch assembly until the threaded sleeve hits the pedal as shown in the illustration. *1 Stop Light Switch
SEE MORE:
DESCRIPTION These DTCs are stored if a CAN communication malfunction occurs between the headlight ECU sub-assembly LH and other ECUs. for LED Type Turn Signal Light DTC No. Detection Item DTC Detection Condition Trouble Area DTC Output from U0073 Control Module Communication Bus Off
INSTALLATION PROCEDURE 1. INSTALL CAMSHAFT TIMING GEAR BOLT (a) Make sure that the No. 1 cylinder is at TDC/compression. HINT: Check that the cutout of the camshaft timing gear assembly is at the top and align the timing mark (cutout) of the crankshaft pulley with the timing mark on the timing chain
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