P2B68

Coolant Pump D Control Circuit High

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–167 (est.)

Symptoms

Check Engine Light Is On
Possible problems with engine temperature
Reduced cooling system efficiency
Coolant pump noise
In some cases, no obvious symptoms

Causes

Short circuit in pump control circuit
Additional coolant pump malfunction
Problems with the wiring harness or connectors
Faulty relay or fuse
Problems with the engine control unit

How to Fix

Check fuses and relays associated with the pump
Inspect the wiring harness and connectors for damage.
Check the resistance and operation of the coolant pump
Scan the control unit for other errors
If necessary, replace the pump or repair the wiring

Related codes

P2B67 P2B69 P2600