Lexus NX manuals

Lexus NX: Inspection

Lexus NX Service Manual / Engine & Hybrid System / 2ar-fxe (hybrid / Battery Control) / Hv Relay Assembly / Inspection

INSPECTION

PROCEDURE

1. INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY

(a) Inspect SMRB:

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

x2-1 (+) - t5-1 (CBI)

Auxiliary battery voltage not applied between terminals y1-4 (SMRB) and y1-2 (GND)

10 kΩ or higher

Auxiliary battery voltage applied between terminals y1-4 (SMRB) and y1-2 (GND)

Below 1 Ω

(2) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

y1-4 (SMRB) - y1-2 (GND)

-40 to 80°C (-40 to 176°F)

20.6 to 40.8Ω

If the result is not as specified, replace the hybrid battery junction block assembly.

*1

x2-1 (+)

*2

t5-1 (CBI)

*3

y1

*a

Component without harness connected

(Hybrid Battery Junction Block Assembly)

(b) Inspect SMRG:

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

x3-1 (-) - t6-1 (CEI)

Auxiliary battery voltage not applied between terminals y1-1 (SMRG) and y1-2 (GND)

10 kΩ or higher

Auxiliary battery voltage applied between terminals y1-1 (SMRG) and y1-2 (GND)

Below 1 Ω

(2) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

y1-1 (SMRG) - y1-2 (GND)

-40 to 80°C (-40 to 176°F)

20.6 to 40.8Ω

If the result is not as specified, replace the hybrid battery junction block assembly.

*1

x3-1 (-)

*2

t6-1 (CEI)

*3

y1

*a

Component without harness connected

(Hybrid Battery Junction Block Assembly)

(c) Inspect SMRP:

(1) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

x3-1 (-) - t6-1 (CEI)

Auxiliary battery voltage not applied between terminals y1-3 (SMRP) and y1-2 (GND)

10 kΩ or higher

Auxiliary battery voltage applied between terminals y1-3 (SMRP) and y1-2 (GND)

28.5 to 31.5 Ω

(2) Measure the resistance according to the value(s) in the table below.

Standard Resistance:

Tester Connection

Condition

Specified Condition

y1-3 (SMRP) - y1-2 (GND)

-40 to 80°C (-40 to 176°F)

140 to 290Ω

If the result is not as specified, replace the hybrid battery junction block assembly.

*1

x3-1 (-)

*2

t6-1 (CEI)

*3

y1

*a

Component without harness connected

(Hybrid Battery Junction Block Assembly)

READ NEXT:

 Installation

INSTALLATION PROCEDURE 1. INSTALL HV BATTERY JUNCTION BLOCK ASSEMBLY CAUTION: Wear insulated gloves and use insulated tools. (a) Install the hybrid battery junction block assembly with the 3 nuts. Tor

 Hybrid Control System

 Dtc Check / Clear

DTC CHECK / CLEAR CHECK FOR DTCS (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Powertrain / Hybrid Control / Tro

SEE MORE:

 Utility

UTILITY CANCEL COMMUNICATION FUNCTION PAUSING HINT: This function is used to cancel communication function pausing mode (a) Connect the Techstream to the DLC3. (b) Turn the power switch on (IG). (c) Turn the Techstream on. (d) Enter the following menus: Body Electrical / Telematics / Utility / Cance

 Operation Check

OPERATION CHECK HINT: This function shows the telematics network status when the DCM (telematics transceiver) was operated. Use this when no DTC is present but this telematics system was unable to connect to the call center. This symptom may occur if cell phone signal strength is very weak. Thi

© 2016-2025 Copyright www.lexunx.com