What are the common causes of P2C70?

A low current reading on drive motor A phase Z. High resistance in the phase Z cable or terminal. A phase Z circuit that is open or partially disconnected. A current sensor fault on phase Z.

Read drive motor A phase Z current on a scan tool. Inspect the phase Z cable and terminals. Compare phase Z current to the other phases. Test the phase Z current sensor. Replace the drive motor A phase Z assembly if current stays low. Clear the code and retest.

P2C70

Drive Motor “A” Phase Z Current Low

System: Powertrain control (P code)
Lamp: Check Engine Light
Category: Powertrain - Hybrid Propulsion

What it means

P2C70 means Drive Motor “A” Phase Z Current Low.

Check these first

A low current reading on drive motor A phase Z
High resistance in the phase Z cable or terminal
A phase Z circuit that is open or partially disconnected
A current sensor fault on phase Z

What to do next

Read drive motor A phase Z current on a scan tool
Inspect the phase Z cable and terminals
Compare phase Z current to the other phases
Test the phase Z current sensor
Replace the drive motor A phase Z assembly if current stays low
Clear the code and retest

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Updated

Generic SAE J2012 definition. Last updated 2026-10-10.