Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2019TRAX PREMIER, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 6 (ENGINE COOLING SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC P2600-P2603CIRCUIT/SYSTEM VERIFICATION
2019 Chevrolet Trax Premier, AWD
Circuit/System Verification
2019 Chevrolet Trax Premier, AWDSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2018 Chevrolet Trax and 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, verify that DTC P0480, P0691, or P0692, is not set.
- If a DTC is set, refer to DTC P0480, P0481, P0691, P0692, P0693, or P0694 (LUV) DTC P0480, P0481, P0691, P0692, P0693, or P0694 (LE2) for further diagnosis.
- Command the cooling fan ON from 20 - 90 % with a scan tool. Verify that the cooling fan turns ON and operates as commanded.
- If the cooling fan does not respond to the commanded states, refer to Cooling Fan Inoperative for further diagnosis.
- Ignition ON, command the KR31 auxiliary coolant pump relay ON and OFF with the scan tool. An audible click should be heard when changing between the commanded states.
- Command the KR31 auxiliary coolant pump relay ON and OFF while observing the scan tool parameters listed below:
- Auxiliary Coolant Pump Relay Control Circuit Open Test Status
- Auxiliary Coolant Pump Relay Control Circuit Low Voltage Test Status
- Auxiliary Coolant Pump Relay Control Circuit High Voltage Test Status
Each of the parameters should display OK or Not Run when changing between the commanded states.
- Start the engine, observe the DTC information with a scan tool. DTCs P2600, P2602, or P2603 should not set.
- If a DTC is set, refer to Circuit/System Testing for further diagnosis.
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
NOTE:
There is a slight delay before the cooling fan activates and reaches full speed.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.