Lexus NX: Relay
On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. INSPECT IGNITION CONTROL RELAY (IGCT)
| (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 is not applied across terminals 1 and 2 | 10 kΩ or higher | | 3 - 5 | Auxiliary battery voltage is applied across terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the ignition control relay. | | | *1 | Ignition Control Relay | | |
2. INSPECT HYBRID WATER PUMP RELAY (INV W/PMP)
| (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 is not applied across terminals 1 and 2 | 10 kΩ or higher | | 3 - 5 | Auxiliary battery voltage is applied across terminals 1 and 2 | Below 1 Ω | If the result is not as specified, replace the hybrid water pump relay. | | | *1 | Hybrid Water Pump Relay | | |
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COMPONENTS ILLUSTRATION *1 DECK FLOOR BOX LH *2 NO. 3 DECK BOARD SUB-ASSEMBLY *3 REAR DECK FLOOR BOX *4 NEGATIVE AUXILIARY BATTERY TERMINAL N*m (kgf*cm, ft.*lbf): Specified
REMOVAL PROCEDURE 1. PRECAUTION CAUTION: The hybrid system has high-voltage circuits. Accidents, such as electric shock, or electric leaks may result if the hybrid system is not operated in a correct
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ComponentsCOMPONENTS ILLUSTRATION *1 REAR DOOR OPENING TRIM WEATHERSTRIP LH *2 REAR DOOR SCUFF PLATE LH RemovalREMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH side.
The procedure listed below is for the LH side.
PROCEDURE 1. REMOVE REAR DOOR SCUF
DESCRIPTION The cause of this malfunction may be the rear motor resolver. Check the rear motor resolver internal resistance and connection condition from the inverter to the resolver. Related Parts Check Area Inspection Step Wire harness and connector between the inverter and rear motor r
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