Powertrain, generic · Hybrid propulsion

P0AEB Hybrid/EV Battery Temperature Sensor D Circuit High

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

P0AEB reports that battery temperature sensor D delivers a voltage above its valid range. For GM's NTC sensors this reads as extreme cold, pointing to an open wire, a backed-out pin at the sensing board or a cracked thermistor. GM's 2016 and 2019 tables set it below -69 °C in 8 of 10 samples, the 2011 and 2013 two-mode hybrids below -45 °C in 30 of 40, the eAssist table 13OBDG05C above 4.63 V, about -45 °C, in 7 of 10, and a 2018 controller below -40 °C for 1.4 s within 2 s; all Type B, two trips. On the Chevrolet Volt, bulletin 18-NA-342 links such codes to a Battery Too Cold message above -25 °C ambient and prescribes reprogramming. A pack the controller believes frozen gets strict charge and power limits.

Likely causes

Open circuit or unplugged connector at sensor D
Outdated controller software (GM Volt, bulletin 18-NA-342)
Temperature sensor D open internally

Symptoms

  • Malfunction indicator lamp after two trips
  • Battery Too Cold message (Volt)
  • Charging and electric drive restricted

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€60–2,500
Time0.5–5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

hv battery temp sensor dwiring harnessbms

Related codes

P0AEAP0AE8P0AE9P0AECP0ACD

References: gsi.ext.gm.com, gsi.ext.gm.com, gsi.ext.gm.com, gsi.ext.gm.com.