Coolant Bypass Valve A Control Circuit Low

Where it lives

For P0E76, the description names the valve as the part involved.

Check these first

• A short to ground on the coolant bypass valve A control circuit
• A failed valve A actuator pulling the control low
• Chafed valve A wiring touching ground
• A corroded connector pin at the valve

What to do next

1. Check the valve A control wire for a short to ground
2. Disconnect the valve A actuator and recheck the control signal
3. Inspect the valve A connector for corrosion
4. Measure the valve A actuator current
5. Replace the bypass valve A actuator if the wiring tests good
6. Clear the code and retest

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