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Home >> Lexus >> 2021 >> NX 300h Base >> Repair and Diagnosis >> Electrical >> Charging Systems >> Battery / Charging System (Service Specifications) >> 2AR-FXE Battery / Charging >> Service Data [10/2014 - ] >> Service Data [10/2014 - ]
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Service Data [10/2014 - ]

Auxiliary battery voltage Positive (+) terminal - Negative (-) terminal 20°C (68°F), Power switch off 12.5 V or higher
Auxiliary battery is OK
11.0 to 12.5 V
Recharge auxiliary battery
Below 11.0 V
Replace auxiliary battery
Recharge auxiliary battery LN2 5 A or less
Fuse Standard resistance Below 1 Ω
DC/DC converter assembly Current flowing from auxiliary battery Auxiliary battery positive cable Power switch on (READY)
(The high beam headlights are on, the blower motor switch is in the HI position, and the rear window defogger is turned on.)
0 A or less
(no current from auxiliary battery)
Auxiliary battery voltage Positive (+) terminal - Negative (-) terminal 13.8 to 14.7 V
Auxiliary battery thermometer sensor Standard Resistance 1 - 2 3.00 to 3.73 kΩ at 10°C (50°F)
2.45 to 2.88 kΩ at 15°C (59°F)
1.95 to 2.30 kΩ at 20°C (68°F)
1.60 to 1.80 kΩ at 25°C (77°F)
1.28 to 1.47 kΩ at 30°C (86°F)
1.00 to 1.22 kΩ at 35°C (95°F)
0.80 to 1.00 kΩ at 40°C (104°F)
0.65 to 0.85 kΩ at 45°C (113°F)
0.50 to 0.70 kΩ at 50°C (122°F)
0.44 to 0.60 kΩ at 55°C (131°F)
0.36 to 0.50 kΩ at 60°C (140°F)