Toggle Side Panel

Shopping Cart

No products in the basket.

Shopping Cart

No products in the basket.

Close search
Home / DTC / P0025 — B Camshaft Position - Timing Over-Retarded Bank 2

P0025 — B Camshaft Position - Timing Over-Retarded Bank 2

Detailed page for trouble code P0025.

34,405codes
59brands
11,914generic
22,491specific
All codes P-codes (Powertrain) B-codes (Body) C-codes (Chassis) U-codes (Network/User) Tesla Alerts
Reset
Code

P0025

Generic P — Powertrain

B Camshaft Position - Timing Over-Retarded Bank 2

Brand: Generic
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Low or dirty engine oil reducing VVT hydraulic pressure
  • Stuck, clogged, or failed oil control valve (OCV / VVT solenoid) on bank 2
  • Failed or leaking camshaft phaser (VVT actuator)
  • Timing chain or sprocket jumped or worn (timing slipped)
  • Faulty camshaft or crankshaft position sensor or poor sensor signal
  • Wiring harness or connector damage to OCV, cam sensor, or PCM

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Reduced engine power or poor acceleration
  • Rough idle, hesitation, or occasional misfire
  • Reduced fuel economy and increased emissions
  • Unusual engine noise if timing chain or phaser is failing

What to check

  • Retrieve stored trouble codes and freeze-frame data with a scan tool; note related codes
  • Check engine oil level and condition; inspect for low or very dirty oil
  • Visually inspect wiring and connectors for OCV(s), camshaft position sensors, and PCM (bank 2)
  • Command OCV with a scan tool (active test) and observe response
  • Use a lab scope or scan tool to compare camshaft position sensor waveform to crankshaft position; check target vs actual cam angle
  • Measure oil pressure and VVT oil supply if available

Signal parameters

  • Camshaft actual angle lags commanded/target by a threshold (commonly >10–15° on many systems)
  • OCV/VVT solenoid duty cycle or command (%) from PCM during active tests
  • OCV electrical current draw (mA) or resistance (Ω) within spec for the vehicle
  • Camshaft position sensor waveform should match expected timing relative to crank sensor at idle and under rev
  • Engine oil pressure (psi or kPa) adequate for VVT operation—low pressure under load/idle can affect timing

Diagnostic algorithm

  1. Read all codes, freeze frame and live data; record related codes (cam/crank, oil pressure, OCV faults).
  2. Check engine oil level and condition; correct level and, if oil is dirty or overdue, change oil and filter then retest.
  3. Visually inspect wiring and connectors for OCV(s) and cam sensors on bank 2; repair any damage or corrosion.
  4. Using a scan tool, perform active test to command the bank 2 OCV while monitoring cam angle and OCV response. Verify OCV actuates and duty/current changes.
  5. If OCV does not respond electrically, test solenoid resistance and supply voltage/ground; repair harness or replace solenoid as needed.
  6. If OCV actuates but cam angle does not change, suspect stuck/phased cam actuator or mechanical timing problem; perform cam/crank correlation with an oscilloscope or camshaft timing check.
  7. If cam/crank correlation shows timing chain jump or phaser slippage, inspect timing chain, guides, and phaser; repair or replace components as required.
  8. After repairs, clear codes and perform a full drive cycle verifying target vs actual cam timing under various conditions. If code returns, continue deeper diagnostics (PCM or internal engine mechanical issues).

Likely causes

  • OCV (VVT solenoid) stuck or not actuating
  • Low oil level or degraded oil blocking VVT oil passages
  • Damaged/leaking cam phaser on bank 2
  • Timing chain wear or jumped timing
  • Open/short or poor connector at OCV or cam sensor

Fault status

⚠️ Status
P0025 — B Camshaft Position Timing Over-Retarded (Bank 2). MIL illuminated when condition detected.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 4.0 hours

Similar codes

P0015 P0026 P0016 P0014 P0017 P0340
9,520

The library contains 9,520 repair and diagnostic manuals. Choose a brand to open the full manual tree by year, model and trim.

ALFA ROMEO
89
AUDI
1,243
BMW
479
CADILLAC
206
CHEVROLET
456
CHRYSLER
193
DAEWOO
75
FIAT
26
GENESIS
207
HUMMER
138
HYUNDAI
371
ISUZU
229
KIA
155
LAND ROVER
268
LEXUS
280
LINCOLN
166
MERCEDES-BENZ
856
MERCURY
296
MITSUBISHI
406
PORSCHE
136
TESLA
58
TOYOTA
2,209
TRIUMPH
131
VOLKSWAGEN
626
VOLVO
221
Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email
Code

P0025

LAND ROVER P — Powertrain

Timing of the exhaust camshaft position (B) delayed excessive (bank 2)

Brand: LAND ROVER
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Low or dirty engine oil reducing VVT hydraulic pressure
  • Stuck, clogged, or failed oil control valve (OCV / VVT solenoid) on bank 2
  • Failed or leaking camshaft phaser (VVT actuator)
  • Timing chain or sprocket jumped or worn (timing slipped)
  • Faulty camshaft or crankshaft position sensor or poor sensor signal
  • Wiring harness or connector damage to OCV, cam sensor, or PCM

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Reduced engine power or poor acceleration
  • Rough idle, hesitation, or occasional misfire
  • Reduced fuel economy and increased emissions
  • Unusual engine noise if timing chain or phaser is failing

What to check

  • Retrieve stored trouble codes and freeze-frame data with a scan tool; note related codes
  • Check engine oil level and condition; inspect for low or very dirty oil
  • Visually inspect wiring and connectors for OCV(s), camshaft position sensors, and PCM (bank 2)
  • Command OCV with a scan tool (active test) and observe response
  • Use a lab scope or scan tool to compare camshaft position sensor waveform to crankshaft position; check target vs actual cam angle
  • Measure oil pressure and VVT oil supply if available

Signal parameters

  • Camshaft actual angle lags commanded/target by a threshold (commonly >10–15° on many systems)
  • OCV/VVT solenoid duty cycle or command (%) from PCM during active tests
  • OCV electrical current draw (mA) or resistance (Ω) within spec for the vehicle
  • Camshaft position sensor waveform should match expected timing relative to crank sensor at idle and under rev
  • Engine oil pressure (psi or kPa) adequate for VVT operation—low pressure under load/idle can affect timing

Diagnostic algorithm

  1. Read all codes, freeze frame and live data; record related codes (cam/crank, oil pressure, OCV faults).
  2. Check engine oil level and condition; correct level and, if oil is dirty or overdue, change oil and filter then retest.
  3. Visually inspect wiring and connectors for OCV(s) and cam sensors on bank 2; repair any damage or corrosion.
  4. Using a scan tool, perform active test to command the bank 2 OCV while monitoring cam angle and OCV response. Verify OCV actuates and duty/current changes.
  5. If OCV does not respond electrically, test solenoid resistance and supply voltage/ground; repair harness or replace solenoid as needed.
  6. If OCV actuates but cam angle does not change, suspect stuck/phased cam actuator or mechanical timing problem; perform cam/crank correlation with an oscilloscope or camshaft timing check.
  7. If cam/crank correlation shows timing chain jump or phaser slippage, inspect timing chain, guides, and phaser; repair or replace components as required.
  8. After repairs, clear codes and perform a full drive cycle verifying target vs actual cam timing under various conditions. If code returns, continue deeper diagnostics (PCM or internal engine mechanical issues).

Likely causes

  • OCV (VVT solenoid) stuck or not actuating
  • Low oil level or degraded oil blocking VVT oil passages
  • Damaged/leaking cam phaser on bank 2
  • Timing chain wear or jumped timing
  • Open/short or poor connector at OCV or cam sensor

Fault status

⚠️ Status
P0025 — B Camshaft Position Timing Over-Retarded (Bank 2). MIL illuminated when condition detected.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0 - 4.0 hours

Similar codes

P0015 P0026 P0016 P0014 P0017 P0340
269

Browse 269 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

LAND ROVER

Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

Report

Harassment or bullying behavior
Contains mature or sensitive content
Contains misleading or false information
Contains abusive or derogatory content
Contains spam, fake content or potential malware

Block Member?

Please confirm you want to block this member.

You will no longer be able to:

  • See blocked member's posts
  • Mention this member in posts
  • Invite this member to groups
  • Message this member
  • Add this member as a connection

Please note: This action will also remove this member from your connections and send a report to the site admin. Please allow a few minutes for this process to complete.

Report

You have already reported this .