Powertrain, generic (extended)

P2E1F Drive Motor A Phase Y Current Sensor Circuit

Check engine lightOn

EmissionsRelevant

Drive cycleNot required

Limp modePossible

P2E1F stands for a circuit fault of the phase Y current sensor of drive motor A that is not sorted into a low or high case. No manufacturer documents P2E1F publicly, and even the U/V/W equivalents of this general code see little use: GM's 2013 to 2019 hybrid tables cover the phase sensors with offset, low, high and sum checks only, while Ford's 2019 hybrid summary says that current sensor faults of its motor inverter end up in the phase current codes P0A5D, P0A60 and P0A63 or in P0BFD. Which code a car stores for the same defect thus depends on the maker. Y is the middle phase of the second winding group; a Mitsubishi Electric patent gives each of X, Y and Z its own sensor. Check the inverter's low-voltage connector and supply first. Range check: P2E20; low and high: P2E21, P2E22.

Likely causes

Phase Y current sensor in the inverter failed

Poor contact at the inverter's low-voltage connector

Sensor supply or ground interrupted

Symptoms

Hybrid warning lamp and MIL
Electric drive limited or switched off
Other phase current codes may be stored as well

Repair estimate

DifficultyShop_onlyWorkshop job

Parts and labour€200–5,000

Time1–6 h

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

Parts involved

drive motor a phase y current sensorwiring harnesshybrid control module

References: fordservicecontent.com, gsi.ext.gm.com, image-ppubs.uspto.gov.