AutoCodes – Dodge – P2602 Dodge

P2602 Dodge Code - Coolant Pump 'A' Control Circuit Low

Quick Answer

The Powertrain Control Module (PCM) monitors the Coolant Pump 'A' Control Circuit signal. Common causes include Faulty Coolant Pump Relay, Faulty Coolant Pump, Coolant Pump harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2602 Dodge indicates Coolant Pump 'A' Control Circuit Low.
Common causes
Common causes include Faulty Coolant Pump Relay, Faulty Coolant Pump, Coolant Pump harness is open or shorted.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 3,583
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jan 19, 2019
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Code P2602 Dodge Description

The Powertrain Control Module (PCM) monitors the Coolant Pump 'A' Control Circuit signal. The PCM sets the OBDII code when the Coolant Pump 'A' Control Circuit signal is out of factory specifications.
OBDII Code P2602 Dodge - Coolant Pump 'A' Control Circuit Low - AutoCodes.com
P2602 Dodge Code - Coolant Pump 'A' Control Circuit Low

What are the Possible Causes of the DTC P2602 Dodge?

  • Faulty Coolant Pump Relay
  • Faulty Coolant Pump
  • Coolant Pump harness is open or shorted
  • Coolant Pump poor electrical connection

How to Fix the DTC P2602 Dodge?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2602 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P2602 Dodge Code

What does the OBDII code P2602 mean for a Dodge vehicle?

P2602 indicates a problem with the Coolant Pump 'A' Control Circuit, specifically that the voltage or signal is lower than expected.

What are the common symptoms of the P2602 code?

Symptoms may include engine overheating, reduced coolant flow, an illuminated check engine light, or inconsistent heater operation.

What causes the P2602 code on Dodge vehicles?

Common causes include a faulty coolant pump, damaged wiring in the control circuit, corroded electrical connectors, or a malfunctioning PCM.

Can I drive my Dodge with the P2602 code?

Driving with this code is not recommended, as it may lead to engine overheating and potential damage if the coolant pump is not functioning properly.

How is the P2602 code diagnosed?

A mechanic will check the wiring and connectors in the coolant pump circuit, test the pump itself for functionality, and verify proper voltage signals from the PCM.

How do I fix the P2602 code on my Dodge?

Repairs may include replacing the coolant pump, repairing or replacing damaged wiring, cleaning corroded connectors, or reprogramming or replacing the PCM.

What tools are needed to fix the P2602 code?

Basic tools include a multimeter for testing electrical circuits and an OBDII scanner to verify the code and clear it after repairs.

Can a faulty PCM cause the P2602 code?

Yes, although less common, a malfunctioning PCM could cause incorrect voltage signals in the coolant pump circuit.

How much does it cost to repair the P2602 code?

Repair costs vary but may range from $150 to $500, depending on whether the coolant pump, wiring, or PCM needs replacement.

How can I prevent the P2602 code from occurring?

Regular maintenance, including inspecting wiring and connectors and ensuring the coolant pump is in good condition, can help prevent this code.

Discuss the causes and fixes for P2602 Dodge OBDII Code

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