Lexus NX manuals

Lexus NX: Relay

Lexus NX Service Manual / Vehicle Interior / Heating / Air Conditioning / Relay

On-vehicle Inspection

ON-VEHICLE INSPECTION

PROCEDURE

1. INSPECT PTC HEATER RELAY(PTC HTR NO. 1, NO. 3)

(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 between terminals 1 and 2

10 kΩ or higher

3 - 5

Auxiliary battery voltage is applied between terminals 1 and 2

Below 1 Ω
  • If the result is not as specified, replace the PTC heater relay (PTC HTR NO. 1, NO. 3).

*a

Component without harness connected

(PTC Heater Relay)

2. INSPECT PTC HEATER RELAY(PTC HTR NO. 2)

(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 between terminals 1 and 2

10 kΩ or higher

3 - 5

Auxiliary battery voltage is applied between terminals 1 and 2

Below 1 Ω
  • If the result is not as specified, replace the PTC heater relay (PTC HTR NO. 2).

*a

Component without harness connected

(PTC Heater Relay)

3. INSPECT WATER PUMP 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 is not applied between terminals 1 and 2

10 kΩ or higher

3 - 5

Auxiliary battery voltage is applied between terminals 1 and 2

Below 1 Ω

If the result is not as specified, replace the water pump relay.

*a

Component without harness connected

(Water Pump Relay)

READ NEXT:

 Room Temperature Sensor

 Components

COMPONENTS ILLUSTRATION *1 CONSOLE ARMREST ASSEMBLY *2 COOLER THERMISTOR (ROOM TEMPERATURE SENSOR) *3 COWL SIDE TRIM BOARD LH *4 DOOR SCUFF PLATE ASSEMBLY LH *5 INSTRUMENT SI

 Removal

REMOVAL PROCEDURE 1. REMOVE DOOR SCUFF PLATE ASSEMBLY LH Click here 2. REMOVE COWL SIDE TRIM BOARD LH Click here 3. REMOVE CONSOLE ARMREST ASSEMBLY Click here 4. REMOVE UPPER REAR CONSOL

SEE MORE:

 Rear Door RH Entry Unlock Function does not Operate

DESCRIPTION If the entry unlock function does not operate for the rear door RH only, but the entry lock function operates, the request code is being transmitted properly from the rear door RH. In this case, there may be a problem related to the unlock sensor (connection between the certification ECU

 Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver

DESCRIPTION This DCM (telematics transceiver) sends a mute signal to the stereo component amplifier assembly. The stereo component amplifier assembly controls the volume according to the mute signal from the DCM (telematics transceiver). If there is an open in the circuit, noise can be heard from th

© 2016-2024 Copyright www.lexunx.com