P007D medium Severity

P007D: Charge Air Cooler Temperature Sensor Circuit High (Bank 1)

Engine may run poorly or enter reduced power (limp) mode; check engine light illuminated

Overview

P007D generic OBD‑II code indicating high circuit signal from charge air cooler/intercooler temperature sensor on engine bank 1

Common Symptoms

  • Check Engine Light (MIL) illuminated
  • Reduced engine performance or power
  • Decreased fuel economy
  • Possible engine hesitation or rough idle
  • Limp mode activation

Most Common Causes

Faulty charge air cooler temperature (CACT) sensor high

Sensor itself may be malfunctioning and reporting high voltage

Open, shorted, or corroded wiring/connectors in sensor circuit high

Wiring harness damage or poor connection common cause

Faulty powertrain/engine control module (PCM/ECM) medium

ECU misinterpretation or failure is rarer but possible

Actual high temperature from charge air cooler low

Less common; requires specific conditions and verification

Diagnostic Steps

  1. Use professional OBD‑II scanner to verify P007D and check related codes
    Expected: Code P007D present; potential related wiring or sensor codes
    Interpretation: Confirms DTC and identifies any accompanying issues
  2. Visually inspect CACT sensor wiring, connectors, and intercooler components
    Expected: No damage, corrosion, or disconnection
    Interpretation: Damaged wiring/connectors likely cause if issues found
  3. Measure sensor signal, reference voltage, and ground with multimeter
    Expected: 5V reference and appropriate ground; correct signal range
    Interpretation: Incorrect readings suggest sensor or wiring fault
  4. Remove and test sensor resistance over temperature per OEM specification
    Expected: Resistance should change smoothly with temperature
    Interpretation: Static or incorrect readings indicate a faulty sensor
  5. Check continuity between sensor and PCM pins
    Expected: Continuity with no open circuits
    Interpretation: Open circuit confirms wiring harness fault

Repair Solutions

Replace charge air cooler temperature sensor medium
Estimated Cost: $80 - $300

Cost varies by vehicle; follow OEM procedure

Repair or replace damaged wiring/connectors medium
Estimated Cost: $50 - $200

Includes soldering or harness replacement

Reprogram or replace faulty PCM/ECM hard
Estimated Cost: $500 - $2000

Only after ruling out sensor and wiring; professional service required

Common Misdiagnoses

Avoid these common diagnostic mistakes:

  • Assuming sensor failure without testing wiring harness or reference voltage

Frequently Asked Questions

What does the P007D code mean?

The P007D code stands for Charge Air Cooler Temperature Sensor Circuit High (Bank 1). This generally indicates an issue with the Sensors system.

Should I stop driving if I have P007D?

You should treat P007D as a medium issue. Engine may run poorly or enter reduced power (limp) mode; check engine light illuminated

Symptoms associated with DTC P007D

You may experience the following: Check Engine Light (MIL) illuminated, Reduced engine performance or power, Decreased fuel economy.

Why is my car throwing a P007D code?

It can be caused by several factors, most notably: Faulty charge air cooler temperature (CACT) sensor, Open, shorted, or corroded wiring/connectors in sensor circuit, Faulty powertrain/engine control module (PCM/ECM).

Estimated repair costs for different causes of P007D

It depends on what needs to be fixed. Repair or replace damaged wiring/connectors repairs are cheaper (~$200), while Reprogram or replace faulty PCM/ECM repairs are on the higher end (~$2000).

Is P007D a generic or manufacturer-specific code?

The P007D code is a generic powertrain code, meaning it applies to almost all makes and models, such as Honda, Toyota, VW, Ford, and Chevy.

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