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:

 Customize Parameters

CUSTOMIZE PARAMETERS PROCEDURE 1. CUSTOMIZE POWER MIRROR CONTROL SYSTEM HINT: The following items can be customized. NOTICE: When the customer requests a change in a function, first make sure that the function can be customized. Record the current settings before customizing. (a) Customizing

 System Description

SYSTEM DESCRIPTION GENERAL (a) Deceleration sensors used for the airbag system are installed on various parts of the vehicle and calculate the deceleration rate of each part during a collision. (b) Depending on the situation, the airbag ECU assembly sends a deployment signal to each airbag based on

© 2016-2026 Copyright www.lexunx.com