Code
P0076
LAND ROVER
P — Powertrain
valve control intake - low circuit (bank 1)
Views:
UK: 5
EN: 13
RU: 29
AI status
Completed
Completed
100%
Causes
- Open or shorted wiring in intake valve control solenoid circuit (short to ground)
- Corroded, loose, or damaged connector at the intake valve control solenoid
- Failed/shorted intake camshaft control solenoid (variable valve timing solenoid)
- Poor engine or ECM ground, blown fuse, or supply voltage problem
- Contaminated or mechanically seized camshaft actuator (oil sludge/clogging)
- Faulty Engine Control Module (rare)
Symptoms
- Check Engine Light (MIL) illuminated
- Reduced engine performance or torque, reduced fuel economy
- Rough idle, hesitation, or misfire-like behavior on start/acceleration
- Possible limp-home mode or reduced power lamp
- Unusual valve/engine noise if actuator is mechanically seized
What to check
- Read freeze frame data and confirm P0076 current or pending with a scan tool
- Compare commanded vs actual camshaft position or actuator status using live data
- Visually inspect wiring and connectors at intake camshaft control solenoid (Bank 1)
- Check for blown fuses and proper battery/ignition supply voltage
- Back-probe solenoid connector to measure voltage and signal while commanding
- Measure solenoid coil resistance with multimeter (with harness disconnected)
Signal parameters
- Control type: ECM-driven — switched 12 V / PWM to control VVT solenoid
- Expected coil resistance (typical range): ~5–35 ohms (varies by model) — compare to spec
- Command voltage: 0 V (off) up to battery voltage (~10–14 V) when energized; some control is PWM
- Duty cycle: 0–100% depending on commanded cam advance/retard
- Pulse frequency: low-to-moderate PWM (varies by vehicle), check factory spec for exact frequency
Diagnostic algorithm
- Retrieve codes and freeze-frame using a scanner. Confirm code is P0076 and note engine conditions.
- Clear codes and attempt to reproduce. See if code returns immediately or after drive cycle.
- Visually inspect connector, pins, and wiring for corrosion, bent pins, burns or pinched sections at the Bank 1 intake solenoid.
- With ignition ON (engine OFF), back-probe the solenoid connector: verify reference supply (battery voltage) and ground circuit continuity. Check while commanding solenoid ON with scanner to see switching behavior.
- Measure solenoid coil resistance with harness disconnected; compare to specification. Very high or open = faulty solenoid.
- Check for short to ground or short to battery on the control circuit with an ohmmeter and powered circuit checks as appropriate. Repair damaged wiring if found.
- If wiring and connector are good, swap the solenoid with a known-good unit (if applicable) or fit a replacement solenoid and re-test.
- Inspect engine oil level and condition. If oil is contaminated or sludge is present, service oil and inspect/replace actuator if mechanically restricted.
- If replaced solenoid and wiring are confirmed good and fault persists, test ECM output driver for the channel or consult manufacturer procedures — ECM replacement is rare and should be confirmed with bench tests or a dealer-level diagnostic.
Likely causes
- Faulty intake camshaft control solenoid
- Wiring short to ground or damaged connector at solenoid
- Poor ground or supply (fuse, fusible link, battery voltage)
- Oil-contaminated actuator preventing movement
Fault status
Status
P0076 — Valve Control Intake (Bank 1) Low Circuit: The ECM detected low voltage or low signal on the Bank 1 intake camshaft control solenoid circuit. Check solenoid, wiring, connectors, supply/ground, and actuator operation.
Repair difficulty: Medium
Diagnostic time: 1-3 hours
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