CEL coolant pump

[Sensei]

code: p2603 - coolant pump 'a' control circuit high

and

code: p2601 - coolant pump 'a' control circuit performance/stuck off

CEL lit up. no increase in temp. Still blows hot if selected. A/c working fine, and no loss of coolant

Reset the ode. went away for a week and then came back.

Why do I feel like i am chasing a ghost?

Clear the light, ran forscan test and nothing came back.

Maybe a switch going intermittently?

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[Sensei]

So after diag the codes were actually PENDING codes and not active. So something tripped them once.

 

[Sensei]

So after a while of troubleshooting, the true problem showed itself. Seems a dead/dying battery will create ALL sorts of Havoc on these vehicles. I replaced the battery and for the last 5 days ZERO codes, ZERO issues.

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