Lexus ES: Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT DEF RELAY
| (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: | Tester Connection | Condition | Specified Condition | | 3 - 4 | Auxiliary battery voltage applied between terminals 1 and 2 | 10 kΩ or higher | | 3 - 4 | Auxiliary battery voltage not applied between terminals | Below 1 Ω | | 3 - 5 | Auxiliary battery voltage applied between terminals 1 and 2 | Below 1 Ω | | 3 - 5 | Auxiliary battery voltage not applied between terminals | 10 kΩ or higher | | 4 - 5 | Always | 10 kΩ or higher | If the result is not as specified, replace the DEF relay. | |
2. INSPECT DEICER RELAY
| (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: | Tester Connection | Condition | Specified Condition | | 3 - 5 | Auxiliary battery voltage applied between terminals 1 and 2 | Below 1 Ω | | 3 - 5 | Auxiliary battery voltage not applied between terminals | 10 kΩ or higher | If the result is not as specified, replace the deicer relay. | |
3. INSPECT HWD RELAY
| (a) Measure the resistance according to the value(s) in the table below. Standard Resistance: | Tester Connection | Condition | Specified Condition | | 3 - 5 | Auxiliary battery voltage applied between terminals 1 and 2 | Below 1 Ω | | 3 - 5 | Auxiliary battery voltage not applied between terminals | 10 kΩ or higher | If the result is not as specified, replace the HWD relay. | |
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PRECAUTION PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL NOTICE: When disconnecting the cable from the negative (-) battery terminal, initialize the following systems after the cab
PARTS LOCATION ILLUSTRATION *1 DEF RELAY *2 REAR WINDOW DEFOGGER WIRE *3 NO. 1 ENGINE ROOM RELAY BLOCK AND NO. 1 JUNCTION BLOCK ASSEMBLY - DEF FUSE *4 BACK WINDOW GLASS ILLUSTRA
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INSTALLATION CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH side and LH side.
The following procedure is for the LH side.
PROCEDURE 1. INSTALL OUTER MIRROR CONTROL ECU ASSEMBLY (a) Install the outer mirror control ECU assembly with the 2 screws. (b) Connect the 2 connectors.
READINESS MONITOR DRIVE PATTERN PURPOSE OF READINESS TESTS
The On-Board Diagnostic (OBD II) system is designed to monitor the performance of emission related components, and indicate any detected abnormalities using DTCs (Diagnostic Trouble Codes). Since various components need to be monitored du
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