Engine-Codes - Generic - P0AB4

P0AB4 - Hybrid Battery Pack Air Temperature Sensor 'B' Circuit High

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?

P0AB4 Possible Causes

  • Faulty HV Battery Assembly (Intake Air Temperature Sensor)
  • HV Battery Assembly harness is open or shorted
  • HV Battery Assembly circuit poor electrical connection
  • Faulty Battery ECU

How do I fix code P0AB4

Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

Cost of diagnosing the P0AB4 code

Labor: 1.0

The cost of diagnosing the P0AB4 code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

P0AB4 Meaning

The intake air temperature sensor is provided on the HV battery assembly. Its resistance value varies with the changes in the intake air temperature. The characteristics of the intake air temperature sensor are the same as the battery temperature sensors.
The battery ECU uses the signals from the intake air temperature sensor for adjusting the air flow speed of the battery blower assembly.

P0AB4 More Information

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