OBD Guide

P06E7

Sensor Power Supply C Circuit Low

P06E7 is an OBD-II diagnostic trouble code meaning: Sensor Power Supply C Circuit Low. Common causes: short circuit in the sensor, loading circuit c, shorting the power wire to ground. Estimated repair cost: $9–67.

Severity
🔴 High
Can you drive?
Do not drive — repair immediately
Approx. repair cost
$9–67 (est.)

Symptoms

  • Low or unstable sensor readings
  • Check Engine light on
  • Unstable engine operation
  • Multiple Circuit C Sensor Error Codes
  • Engine transition to emergency mode

Causes

  • Short circuit in the sensor, loading circuit C
  • Shorting the power wire to ground
  • Moisture getting into the sensor or ECU connector
  • Malfunction of the internal power supply stabilizer of the ECU
  • Damaged power conductor insulation

How to Fix

  1. Measure the supply voltage at terminal C with the ignition on.
  2. Identify the sensors powered by circuit C using the electrical diagram
  3. Turn off the sensors one by one and monitor the voltage restoration
  4. Check the internal resistance of the found “culprit” sensor
  5. Check the continuity and insulation of circuit C wiring
  6. If the voltage is normal without sensors, diagnose the ECU

Related codes

Error P06E7 by Vehicle Brand

FAQ

What does the P06E7 code mean?

P06E7 is an OBD-II diagnostic trouble code that indicates: Sensor Power Supply C Circuit Low

What causes a P06E7 error code?

The most common causes of P06E7 include: Short circuit in the sensor, loading circuit C; Shorting the power wire to ground; Moisture getting into the sensor or ECU connector; Malfunction of the internal power supply stabilizer of the ECU.

How do I fix a P06E7 diagnostic trouble code?

To fix P06E7: Measure the supply voltage at terminal C with the ignition on.. Identify the sensors powered by circuit C using the electrical diagram. Turn off the sensors one by one and monitor the voltage restoration. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P06E7?

Do not drive — repair immediately

How much does it cost to fix P06E7?

The estimated repair cost for P06E7 is $9–67. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat