Lexus ES manuals

Lexus ES: 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.

*a

Component without harness connected

(HV Battery Junction Block Assembly)

-

-

Standard Resistance:

Tester Connection

Condition

Specified Condition

y18-1 (+) - a2-1 (CBI)

Auxiliary battery voltage not applied between terminals N22-1 (SMRB) and N22-3 (GND)

10 kΩ or higher

Auxiliary battery voltage applied between terminals N22-1 (SMRB) and N22-3 (GND)

Below 1 Ω

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

N22-1 (SMRB) - N22-3 (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.

(b) Inspect SMRG:

(1) 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

y12-1 (-) - a3-1 (CEI)

Auxiliary battery voltage not applied between terminals N22-4 (SMRG) and N22-3 (GND)

10 kΩ or higher

Auxiliary battery voltage applied between terminals N22-4 (SMRG) and N22-3 (GND)

Below 1 Ω

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

N22-4 (SMRG) - N22-3 (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.

(c) Inspect SMRP:

(1) 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

y12-1 (-) - a3-1 (CEI)

Auxiliary battery voltage not applied between terminals N22-2 (SMRP) and N22-3 (GND)

10 kΩ or higher

Auxiliary battery voltage applied between terminals N22-2 (SMRP) and N22-3 (GND)

24.3 to 29.7 Ω

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

N22-2 (SMRP) - N22-3 (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.

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