Inspection [11/2021 - ]: Procedure
WARNING: This page is about a different car, the 2025 Lexus NX 350h, 2024 Lexus NX 350h, 2023 Lexus NX 350h, and 2022 Lexus NX 350h. However, it is still accessible from the selected car via links, so may be relevant.
- INSPECT HV BATTERY JUNCTION BLOCK ASSEMBLY
- Inspect SMRB:
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(HV Battery Junction Block Assembly)- - Standard Resistance
Tester Connection Condition Specified Condition z2-1 (+) - S3-1 (CBI) Auxiliary battery voltage not applied between terminals G15-1 (SMRB) and G15-3 (GND) 10 kΩ or higher Auxiliary battery voltage applied between terminals G15-1 (SMRB) and G15-3 (GND) Below 1 Ω - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition G15-1 (SMRB) - G15-3 (GND) -40 to 80°C (-40 to 176°F) 19.0 to 59.0 Ω If the result is not as specified, replace the HV battery junction block assembly.
- Measure the resistance according to the value(s) in the table below.
- Inspect SMRG:
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(HV Battery Junction Block Assembly)- - Standard Resistance
Tester Connection Condition Specified Condition z12-1 (-) - S5-1 (CEI) Auxiliary battery voltage not applied between terminals G15-4 (SMRG) and G15-3 (GND) 10 kΩ or higher Auxiliary battery voltage applied between terminals G15-4 (SMRG) and G15-3 (GND) Below 1 Ω - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition G15-4 (SMRG) - G15-3 (GND) -40 to 80°C (-40 to 176°F) 19.0 to 59.0 Ω If the result is not as specified, replace the HV battery junction block assembly.
- Measure the resistance according to the value(s) in the table below.
- Inspect SMRP:
- Measure the resistance according to the value(s) in the table below.
*a Component without harness connected
(HV Battery Junction Block Assembly)- - Standard Resistance
Tester Connection Condition Specified Condition z12-1 (-) - S5-1 (CEI) Auxiliary battery voltage not applied between terminals G15-2 (SMRP) and G15-3 (GND) 10 kΩ or higher Auxiliary battery voltage applied between terminals G15-2 (SMRP) and G15-3 (GND) 24.3 to 29.7 Ω - Measure the resistance according to the value(s) in the table below.
Standard Resistance
Tester Connection Condition Specified Condition G15-2 (SMRP) - G15-3 (GND) -40 to 80°C (-40 to 176°F) 140 to 290 Ω If the result is not as specified, replace the HV battery junction block assembly.
- Measure the resistance according to the value(s) in the table below.
- Inspect SMRB: