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:
DESCRIPTION The hybrid vehicle control ECU monitors the IGCT relay and detects the following malfunction. DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P3110-223 HV Main Relay IGCT relay stuck on (+B short): IGCT relay is stuck on or a short to
PROBLEM SYMPTOMS TABLE HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspect
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