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
SEE MORE:
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Chassis / Front Recognition Camera / Trouble Codes. Chassis > Front Recognition Camera > Trouble Codes (e) Check for DTCs. Techst
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area B153A GVIF Disconnected (from Extension Module to H/U) GVIF disconnected (from navigation ECU to radio receiver assembly)
Navigation ECU
Radio receiver assembly
WIRING DIAGRAM CAUTION / NOTICE / HI
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