P1690 Lexus Code - OCV for VVTL Circuit Malfunction
Quick Answer
When the engine speed reaches 6,000b rpm, the Variable Valve Timing & Lift (VVTL) system switches the locker arm from low speed to high speed. Common causes include Faulty Oil Control Valve (OCV), Oil Control Valve (OCV) harness is open or shorted, Oil Control Valve (OCV) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1690 Lexus indicates OCV for VVTL Circuit Malfunction.
- Common causes
- Common causes include Faulty Oil Control Valve (OCV), Oil Control Valve (OCV) harness is open or shorted, Oil Control Valve (OCV) circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1690 Lexus Description
What are the Possible Causes of the DTC P1690 Lexus?
- Faulty Oil Control Valve (OCV)
- Oil Control Valve (OCV) harness is open or shorted
- Oil Control Valve (OCV) circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P1690 Lexus?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1690 Lexus code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1690 Lexus code?
Need more information on how to fix the P1690 Lexus code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P1690 Lexus code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P1690 Lexus Code
1. What does the OBDII code P1690 mean on a Lexus?
P1690 indicates a malfunction in the Oil Control Valve (OCV) circuit for the Variable Valve Timing and Lift (VVTL) system.
2. What are the symptoms of code P1690 in a Lexus?
Common symptoms include poor engine performance, reduced fuel efficiency, rough idling, and an illuminated check engine light.
3. What causes the P1690 code to appear in a Lexus?
Possible causes include a faulty OCV, damaged wiring or connectors in the OCV circuit, low or dirty engine oil, or a malfunctioning ECM.
4. How can I diagnose the P1690 code in my Lexus?
Start by checking the OCV and its wiring for damage, ensuring the engine oil is clean and at the correct level, and using a multimeter to test the OCV circuit.
5. Can I drive my Lexus with a P1690 code?
Driving with a P1690 code is not recommended, as it can lead to reduced engine performance and potential long-term damage to the VVTL system.
6. How do I fix the P1690 code in my Lexus?
Repairs may include replacing the faulty OCV, repairing damaged wiring or connectors, cleaning or replacing dirty engine oil, or reprogramming the ECM if necessary.
7. How much does it cost to fix the P1690 code on a Lexus?
Repair costs vary but typically range from $150 to $500, depending on whether the OCV, wiring, or other components need replacement.
8. Can low engine oil cause a P1690 code in a Lexus?
Yes, low or dirty engine oil can cause the OCV to malfunction, leading to the P1690 code.
9. How can I prevent the P1690 code from occurring in the future?
Regularly change the engine oil, inspect the OCV and wiring during maintenance, and address check engine light issues promptly.
10. Does the P1690 code always require OCV replacement?
Not always. The issue could be due to wiring problems, dirty oil, or a faulty ECM, so thorough diagnosis is necessary before replacing the OCV.
Discuss the causes and fixes for P1690 Lexus OBDII Code
Code P1690 Lexus comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
