Jeep P1CC0: Pump Always Off - Circuit Voltage Below Threshold

Is your scanner showing Jeep P1CC0?
No worries. We'll show you what it means and how to deal with it.

Presented by

Randy Worner

00:00/00:00

Jeep P1CC0: Pump Always Off - Circuit Voltage Below Threshold

OVERVIEW

Severity

Medium

DIY Difficulty Level

Intermediate

Repair Cost

$75-$200

Can I Still Drive?

Yes (Short-term only)

What Does The Jeep P1CC0 Code Mean?

This diagnostic checks the performance of the hydraulic pump. The Smart Driver Unit (SDU) which is external to the Transmission Control Module (TCM) drives the hydraulic pump based upon a PWM command signal received from the Transmission Control Module (TCM). This diagnostic uses three feedback signals.

The PWM driver, internal to TCM, returns a command feedback signal. The SDU returns to the TCM the hydraulic pump driver feedback signal. The TCM separately receives the hydraulic pump feedback signal confirming the pump state. This diagnostic checks the performance of the hydraulic pump.