P2602 — Coolant Pump A Control Circuit Low

What Does P2602 Mean?

P2602 is a diagnostic trouble code indicating: Coolant Pump A Control Circuit Low. This code relates to the powertrain system. It has been reported in NHTSA complaints across 1 different vehicle models.

Symptoms of P2602

⚠️ Vehicle enters limp/reduced power mode

Common Causes

🔍 Wiring or connector problem

P2602 Reports by Year

2013

1

2024

1

Real Owner Reports

From NHTSA complaint database — actual owner descriptions.

"Getting error P2602 Low Voltage Coolant Pump. No visible sings of failure or damage to the pump or wiring. Tested power, ground, and signal and found them all to be ok. Vehicle has 133,000 miles. Engine is not running hot at all. Very cool to the touch, error P2602 causes car to go into limp mo"
— Honda Accord owner, 09/01/2024

"ACCORD PLUG-IN. TWICE THE GAS ENGINE LOST ALMOST ALL POWER AT FREEWAY SPEED, UNABLE TO MAINTAIN PREVAILING SPEED. TURNING OFF & ON RESTORED POWER. DEALER REPORTS CODE P2602, ELECTRIC ENGINE COOLANT PUMP FAULT. *TR"
— Honda Accord owner, 06/16/2013

Source: NHTSA Complaints Database

Most Reported Vehicles for P2602

Based on NHTSA owner complaint data.

#	Vehicle	Reports
1	HONDA ACCORD

P2602 Reports by Vehicle

Detailed NHTSA complaint analysis for each vehicle model.

HONDA ACCORD

2 NHTSA reports · Peak: 2014, 2015

Frequently Asked Questions

Can I drive with this code?

It depends on the severity. If the vehicle runs normally, short trips are usually OK. If you notice performance issues, drivability problems, or warning lights beyond the check engine light, get it checked soon.

Will this code clear itself?

Some codes clear automatically after the underlying issue is fixed and several drive cycles pass. But the root cause must be addressed first.

How do I find the exact cause?

A code alone doesn't pinpoint the failed part. You need a diagnostic scan ($50-150 at most shops) that reads freeze frame data and live sensor readings to identify the specific component.

What To Do Next

Possible Fixes

🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
🔧 Inspect wiring harness and connectors for damage, corrosion, or loose connections
🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)

1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
3
Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.

P2602: Coolant Pump A Control Circuit Low