P0AEB code meaning
Hybrid/EV Battery Temperature Sensor D Circuit High
Powertrain system Generic code P0Axx codes Check engine light
What P0AEB means
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.
P0AEB at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyWorkshop only
- Typical labor0.5 to 5 hours
- Clears after repairAfter a drive cycle
Symptoms of P0AEB
- Malfunction indicator lamp after two trips
- Battery Too Cold message (Volt)
- Charging and electric drive restricted
Common causes of P0AEB
- Most likelyOpen circuit or unplugged connector at sensor D
- PossibleOutdated controller software (GM Volt, bulletin 18-NA-342)
- PossibleTemperature sensor D open internally
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Hv battery temp sensor dWiring harnessBms
What each part of P0AEB means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 0 | Generic code: it means the same on every make (SAE standard). |
| A | Area: hybrid propulsion. |
| EB | The exact fault in that area. |
What to do next
- Note P0AEB and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P0AEB
What does P0AEB mean?
P0AEB means "Hybrid/EV Battery Temperature Sensor D Circuit High". P0AEB reports that battery temperature sensor D delivers a voltage above its valid range. It is a generic code, so it means the same on every make.
Is it safe to drive with P0AEB?
Drive gently and only to a workshop. With P0AEB the car can go into limp mode (reduced power) to protect itself.
Will P0AEB fail an emissions test?
Yes, it can. P0AEB is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P0AEB to fix?
Difficulty: workshop only. A typical repair takes 0.5 to 5 hours of work. This is a job for a workshop.
Will P0AEB clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.