Hybrid/EV Battery Pack Air Flow Valve A Control Circuit Low

Where it lives

For P0AD7, the circuit described runs through the valve. The description of P0AD7 reports a fault at the valve.

Check these first

• A short to ground in the Valve A control circuit
• Low voltage at the Valve A control module
• A failed air flow Valve A
• Corrosion reducing voltage in the Valve A circuit

What to do next

1. Command Valve A on and read control circuit voltage
2. Check the Valve A control circuit for a short to ground
3. Measure the Valve A coil resistance
4. Inspect the Valve A connector for corrosion
5. Replace the control module if the circuit tests good
6. Clear the code and retest

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