The most common causes of P0AC6 include: Battery cell degradation or damage; Battery Management System (BMS) malfunction; Wiring harness or connector issue in high-voltage circuit; Software calibration error. A professional OBD-II scan tool is recommended for accurate diagnosis.

Recommended steps to address P0AC6: (1) Monitor the situation and service at your next scheduled visit (2) Have the high-voltage battery system inspected by an authorized EV technician (3) Do not attempt to service high-voltage components yourself. Always consult a qualified EV technician for high-voltage system repairs.

Is it safe to drive with P0AC6?

P0AC6 is a caution-level code. It is generally safe to continue driving short distances, but have it inspected at your next scheduled service visit.

P0AC6

Caution

Hybrid Battery Temperature Sensor "B" Range/Performance

Severity

Caution

What does P0AC6 mean?

Fault code P0AC6 means "Hybrid Battery Temperature Sensor "B" Range/Performance". It is an EV/Hybrid-specific diagnostic trouble code (DTC) in the powertrain system, classified as "battery" with a severity level of "caution". This is a lower-severity code that should be monitored. Have it checked at your next regular service appointment. This code is defined by the SAE J2012 / ISO 15031-6 standard and applies to OBD-II compliant vehicles sold in the US, EU, and other global markets. [Ford EV-specific: High Voltage Battery Positive Contactor Control Circuit High. Applies to: Mustang Mach-E, F-150 Lightning, E-Transit]

Possible Causes

Battery cell degradation or damage
Battery Management System (BMS) malfunction
Wiring harness or connector issue in high-voltage circuit
Software calibration error

Recommended Actions

1 Monitor the situation and service at your next scheduled visit
2 Have the high-voltage battery system inspected by an authorized EV technician
3 Do not attempt to service high-voltage components yourself