Intake Valve Control Solenoid Circuit High (Bank 2)
P0083 indicates the exhaust valve control solenoid circuit is detecting a high voltage condition, meaning the solenoid is receiving excessive electrical signal or power. This prevents proper variable valve timing operation and can cause performance degradation.
What You Might Notice
- Check engine light illuminated
- Poor acceleration and reduced power
- Decreased fuel economy
- Rough idle or unstable engine running
- Difficulty starting the engine
Most Common Causes
- 1
Wiring harness damage or corrosion
Poor connections, corroded terminals, or loose wires in the solenoid circuit harness can cause voltage irregularities. Check all connectors for oxidation and proper seating.
- 2
Short to power in solenoid circuit
A wire in the solenoid circuit may be shorted to battery power, causing continuously high voltage. This forces the solenoid into an abnormal state.
- 3
Faulty exhaust valve control solenoid
The solenoid itself may have internal failure or resistance issues causing it to draw excessive current and trigger the high voltage code.
- 4
Faulty ECM or PCM module
The engine control module may have a defective output driver or internal circuit causing it to send abnormally high voltage signals to the solenoid.
How to Diagnose It
- 1
Check Wiring harness damage or corrosion — Poor connections, corroded terminals, or loose wires in the solenoid circuit harness can cause voltage irregularities. Check all connectors for oxidation and proper seating.
- 2
Check Short to power in solenoid circuit — A wire in the solenoid circuit may be shorted to battery power, causing continuously high voltage. This forces the solenoid into an abnormal state.
- 3
Check Faulty exhaust valve control solenoid — The solenoid itself may have internal failure or resistance issues causing it to draw excessive current and trigger the high voltage code.
- 4
Check Faulty ECM or PCM module — The engine control module may have a defective output driver or internal circuit causing it to send abnormally high voltage signals to the solenoid.
How to Fix It
- 1
Inspect and clean wiring harness
Unplug the solenoid and PCM connectors. Inspect for corrosion, loose pins, or damaged wires. Clean corroded terminals with electrical contact cleaner and ensure all connections are firmly seated.
- 2
Test solenoid resistance
Using a multimeter, check the solenoid coil resistance against factory specifications. An open circuit or abnormal resistance indicates a faulty solenoid requiring replacement.
- 3
Check wiring for shorts to power
Using a wiring diagram specific to your vehicle, trace the solenoid control circuit and test for any wires shorted to battery voltage. Repair or replace damaged wiring as needed.
- 4
Replace control solenoid or ECM
If wiring tests pass and solenoid resistance is faulty, replace the solenoid. If solenoid is good, the ECM may have a defective driver circuit requiring module replacement.
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