DTC P0A5F

DTC P0A5F:  Traction Motor Phase U Current High

General Description 

Courtesy of HONDA, U.S.A., INC.

The power control unit (PCU) controls the traction motor output based on the motor phase current sensor signals. When the motor phase U current sensor output voltage is a specified voltage for a set time, the motor control module in the PCU detects a malfunction and stores a DTC.

Monitor Execution, Sequence, Duration, DTC Type 

Execution	Continuous
Sequence	None
Duration	290 milliseconds or more
DTC Type	Two drive cycles, MIL on, POWER SYSTEM indicator on

Enable Conditions 

Condition	Minimum	Maximum
12 volt battery voltage	8 V	-

Malfunction Threshold 

The motor phase U current sensor output voltage is more than 4.84 V for at least 290 milliseconds.

Possible Cause 

NOTE:  The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.

• PCU internal failure

Diagnosis Details 

Conditions for setting the DTC 

When a malfunction is detected during the first drive cycle, a Pending DTC is stored in the motor control module memory. If the malfunction returns in the next (second) drive cycle, the MIL comes on and a Confirmed DTC and the freeze data are stored.

Conditions for clearing the DTC 

The MIL is cleared if the malfunction does not return in three consecutive trips in which the diagnostic runs. The MIL, the Pending DTC, the Confirmed DTC, and the freeze data can be cleared with the scan tool Clear command.