P2657 – Rocker Actuator System “A” Stuck on Row 2

P2657 Possible Causes

  • Low or overfilled engine oil
  • Incorrect engine oil type
  • Faulty rocker arm actuator ‘A’
  • Rocker arm actuator ‘A’ circuit open or shorted
  • Poor electrical connection in rocker arm actuator ‘A’ circuit

How to Fix Code P2657

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P2657 Meaning

The Engine Control Module (ECM) commands the rocker arm actuator to control the hydraulic oil circuit. Oil flows through the rocker arm actuator to the variable valve timing system to adjust engine valve timing. The Variable Valve Timing (VVT) system is used to improve engine performance, fuel economy, or emissions. The ECM monitors the rocker arm actuator circuit and sets the OBDII code when the rocker arm actuator ‘A’ circuit is outside factory specifications.

P2658 – Low Voltage Circuit for Rocker Arm Oil Control Solenoid ‘A’, Row 2

P2658 Possible Causes

  • Low or overfilled engine oil
  • Incorrect engine oil type
  • Faulty rocker arm actuator ‘A’
  • Rocker arm actuator ‘A’ circuit open or shorted
  • Poor electrical connection in rocker arm actuator ‘A’ circuit

How to Fix Code P2658

Check the “possible causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2658 Meaning

The Engine Control Module (ECM) commands the rocker arm actuator to control the hydraulic oil circuit. Oil flows through the rocker arm actuator to the variable valve timing system to adjust engine valve timing. The Variable Valve Timing (VVT) system is used to improve engine performance, fuel economy, or emissions. The ECM monitors the rocker arm actuator circuit and sets the OBDII code when the rocker arm actuator ‘A’ circuit is outside factory specifications.

P2659 – High Voltage Circuit of Rocker Arm Oil Control Solenoid ‘A’, Row 2

P2659 Possible Causes

  • Low or overfilled engine oil
  • Incorrect engine oil type
  • Faulty rocker arm actuator ‘A’
  • Rocker arm actuator ‘A’ circuit open or shorted
  • Poor electrical connection in rocker arm actuator ‘A’ circuit

How to Fix Code P2659

Check the “Possible Causes” listed above. Visually inspect the wiring harness and related connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Check engine light illuminated (or service engine soon warning light)

P2659 Meaning

The Engine Control Module (ECM) commands the rocker arm actuator to control the hydraulic oil circuit. Oil flows through the rocker arm actuator to the variable valve timing system to adjust engine valve timing. The Variable Valve Timing (VVT) system is used to improve engine performance, fuel economy, or emissions. The ECM monitors the rocker arm actuator circuit and sets OBDII when the rocker arm actuator ‘A’ circuit is outside factory specifications.

P265A – Actuator Rocker Position Sensor Circuit ‘B’, Row 1

P265A Possible Causes

  • Low or overfilled engine oil
  • Incorrect engine oil type
  • Faulty rocker arm actuator sensor “B”
  • Rocker arm actuator sensor “B” circuit open or shorted
  • Poor electrical connection in rocker arm actuator sensor ‘B’ circuit

How to Fix Code P265A

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P265A Meaning

The Engine Control Module (ECM) commands the rocker arm actuator to control the hydraulic oil circuit. Oil flows through the rocker arm actuator to the variable valve timing system to adjust engine valve timing. The Variable Valve Timing (VVT) system is used to improve engine performance, fuel economy, or emissions. The ECM monitors the rocker arm actuator position sensor “B” and sets the OBDII code when the rocker arm actuator position sensor “B” signal is outside factory specifications.

P265B – Bank 1 Actuator Position Sensor Circuit Range/Performance

P265B Possible Causes

  • Low or overfilled engine oil
  • Incorrect engine oil type
  • Faulty rocker arm actuator sensor “B”
  • Rocker arm actuator sensor “B” circuit open or shorted
  • Poor electrical connection in rocker arm actuator sensor ‘B’ circuit

How to Fix Code P265B

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P265B Meaning

The Engine Control Module (ECM) commands the rocker arm actuator to control the hydraulic oil circuit. Oil flows through the rocker arm actuator to the variable valve timing system to adjust the engine’s valve timing. The variable valve timing (VVT) system is used to improve engine performance, fuel economy, or emissions. The ECM monitors the rocker arm actuator position sensor “B” and sets the OBDII code when the rocker arm actuator position sensor “B” signal is outside factory specifications.

P265C – Actuator Rocker Position Sensor Circuit ‘B’, Row 1

P265C Possible Causes

  • Low or overfilled engine oil
  • Incorrect engine oil type
  • Faulty rocker arm actuator sensor “B”
  • Rocker arm actuator sensor “B” circuit open or shorted
  • Poor electrical connection in rocker arm actuator sensor ‘B’ circuit

How to Fix Code P265C

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P265C Meaning

The Engine Control Module (ECM) commands the rocker arm actuator to control the hydraulic oil circuit. Oil flows through the rocker arm actuator to the variable valve timing system to adjust the engine’s valve timing. The Variable Valve Timing (VVT) system is used to improve engine performance, fuel economy, or emissions. The ECM monitors the rocker arm actuator position sensor “B” and sets the OBDII code when the rocker arm actuator position sensor “B” signal is outside factory specifications.

P265D – Actuator Rocker Position Sensor ‘B’ Circuit High, Bank 1

P265D Possible Causes

  • Low or overfilled engine oil
  • Incorrect engine oil type
  • Faulty rocker arm actuator sensor “B”
  • Rocker arm actuator sensor “B” circuit open or shorted
  • Poor electrical connection in rocker arm actuator sensor ‘B’ circuit

How to Fix Code P265D

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P265D Meaning

The Engine Control Module (ECM) controls the rocker arm actuator to manage the hydraulic oil circuit. Oil flows through the rocker arm actuator to the variable valve timing system to adjust the engine’s valve timing. The Variable Valve Timing (VVT) system is used to improve engine performance, fuel economy, or emissions. The ECM monitors the rocker arm actuator position sensor “B” and sets the OBDII code when the rocker arm actuator position sensor “B” signal is outside factory specifications.

P265E – Rocker Actuator Position Sensor Circuit ‘B’, Intermittent / Erratic, Bank 1

P265E Possible Causes

  • Low or overfilled engine oil
  • Incorrect engine oil type
  • Faulty rocker arm actuator sensor “B”
  • Rocker arm actuator sensor “B” circuit open or shorted
  • Poor electrical connection in rocker arm actuator sensor ‘B’ circuit

How to Fix Code P265E

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P265E Meaning

The Engine Control Module (ECM) controls the rocker arm actuator to manage the hydraulic oil circuit. Oil flows through the rocker arm actuator to the variable valve timing system to adjust engine valve timing. The Variable Valve Timing (VVT) system is used to enhance engine performance, fuel economy, or emissions. The ECM monitors the rocker arm actuator position sensor “B” and sets the OBDII code when the rocker arm actuator position sensor “B” signal falls outside factory specifications.

P2660 – Actuator Control Circuit ‘B’ / Open Bank 2

P2660 Possible Causes

  • Low or overfilled engine oil
  • Incorrect engine oil type
  • Faulty rocker arm actuator “B”
  • Rocker arm actuator “B” circuit open or shorted
  • Poor electrical connection in rocker arm actuator “B” circuit

How to Fix Code P2660

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2660 Meaning

The Engine Control Module (ECM) commands the rocker arm actuator to control the hydraulic oil circuit. Oil flows through the rocker arm actuator to the variable valve timing system to adjust engine valve timing. The Variable Valve Timing (VVT) system is used to improve engine performance, fuel economy, or emissions. The ECM monitors the rocker arm actuator circuit and sets the OBDII code when the rocker arm actuator “B” circuit is outside factory specifications.

P2661 – Performance of Rocker Actuator System “B” / Row 2 Locking

P2661 Possible Causes

  • Low or overfilled engine oil
  • Incorrect engine oil type
  • Faulty rocker arm actuator “B”
  • Rocker arm actuator “B” circuit open or shorted
  • Poor electrical connection in rocker arm actuator “B” circuit

How to Fix Code P2661

Check the “Possible Causes” listed above. Visually inspect related wiring harnesses and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2661 Meaning

The Engine Control Module (ECM) commands the rocker arm actuator to control the hydraulic oil circuit. Oil flows through the rocker arm actuator to the Variable Valve Timing system to adjust engine valve timing. The Variable Valve Timing (VVT) system is used to improve engine performance, fuel economy, or emissions. The ECM monitors the rocker arm actuator circuit and sets the OBDII code when the rocker arm actuator “B” circuit is outside factory specifications.