What Does P0076 Mean?
This code indicates the ECM has detected a low voltage or short-to-ground condition on the intake VVT oil control solenoid circuit for bank 1. The control signal voltage is below the expected threshold, meaning the solenoid may be stuck in a default position. This typically results in fixed valve timing, causing rough idle, poor fuel economy, and reduced power output.
Common Causes
35%
Short-to-ground in the VVT solenoid control wire due to chafed insulation contacting the engine block or bracket
30%
Internally shorted VVT solenoid coil with low resistance reading below 6.5 ohms
20%
Corroded or water-damaged connector at the solenoid allowing current leakage to ground
15%
Faulty ECM low-side driver circuit stuck in the on state
Diagnostic Steps
1
Disconnect the intake VVT solenoid connector on bank 1 and measure coil resistance. If below 6.5 ohms, the solenoid has an internal short and must be replaced.
2
With the solenoid disconnected, measure resistance from the control wire pin at the harness connector to engine ground. A reading near 0 ohms indicates a short-to-ground in the wiring harness.
3
Inspect the wiring harness from the VVT solenoid to the ECM for chafing, melted insulation, or pinched wires, especially where it routes near hot exhaust manifold surfaces.
4
If wiring tests good, reconnect the solenoid and backprobe the ECM control pin. With the engine off and ignition on, the voltage should be near battery voltage (12-14V). A reading near 0V with solenoid disconnected points to an ECM driver fault.
5
After repair, clear codes and run the engine through multiple warm-up cycles. Monitor VVT solenoid duty cycle and intake cam advance angle to verify proper operation.
Estimated Repair Cost
$75 - $350
Parts + labor, varies by vehicle and location
This code indicates the ECM has detected a low voltage or short-to-ground condition on the intake VVT oil control solenoid circuit for bank 1. The control signal voltage is below the expected threshold, meaning the solenoid may be stuck in a default position. This typically results in fixed valve ti...
The most common cause of P0076 (Intake Valve Control Solenoid Circuit Low (Bank 1)) is: Short-to-ground in the VVT solenoid control wire due to chafed insulation contacting the engine block or bracket
Typical repair costs for P0076 range from $75 to $350, depending on the vehicle, location, and whether you do it yourself or go to a shop.
A stuck VVT solenoid can cause reduced engine power, which may impair acceleration and safe merging maneuvers. Extended driving may also lead to increased emissions.
Start by connecting an OBD2 scanner to read the code and any freeze frame data. Then follow the diagnostic steps specific to P0076 to identify the root cause.
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Quick Info
Category
Powertrain
System
Variable Valve Timing (VVT) System
Difficulty
Type
Generic (SAE)
Recommended Tools
OBD2 Scanner
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