P0735 Land Rover Code - Gear 5 Incorrect Ratio
Quick Answer
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by Transmission Control Module (TCM) as follows: Torque converter slip ratio = A x C/B A: Output shaft revolution signal from revolution sensor B: Engine speed signal from Engine Control Module (ECM) C: Gear ratio determined as gear position which TCM supposes If the actual gear position is higher than the position (5th) supposed by TCM, the slip ratio will be more than normal. Common causes include Low transmission fluid level, Dirty transmission fluid, Shift solenoids. 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
- P0735 Land Rover indicates Gear 5 Incorrect Ratio.
- Common causes
- Common causes include Low transmission fluid level, Dirty transmission fluid, Shift solenoids.
- 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 P0735 Land Rover Description
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from Engine Control Module (ECM)
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (5th) supposed by TCM, the slip ratio will be more than normal. In case the ratio exceeds the specified value, TCM judges this diagnosis malfunction.
What are the Possible Causes of the DTC P0735 Land Rover?
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
How to Fix the DTC P0735 Land Rover?
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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0735 Land Rover 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 P0735 Land Rover code?
Need more information on how to fix the P0735 Land Rover code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0735 Land Rover code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0735 Land Rover Code
1. What are the common symptoms of OBDII code P0735 in a Land Rover indicating Gear 5 Incorrect Ratio?
- Common symptoms include harsh shifting, slippage in gear 5, delayed engagement, and potential illumination of the Check Engine Light.
2. What are the possible causes of OBDII code P0735 in a Land Rover?
- The code P0735 can be triggered by issues such as a faulty transmission control module, damaged clutch components, low transmission fluid, or a malfunctioning shift solenoid.
3. How serious is the Gear 5 Incorrect Ratio fault code (P0735) in a Land Rover?
- Ignoring the P0735 code can lead to further damage to the transmission system, potentially resulting in drivability issues and costly repairs if left unaddressed.
4. Can low transmission fluid cause the P0735 code in a Land Rover?
- Yes, low transmission fluid levels can result in insufficient hydraulic pressure, causing the transmission to slip and trigger the Gear 5 Incorrect Ratio fault code (P0735).
5. What steps can be taken to diagnose and repair the OBDII code P0735 in a Land Rover?
- Diagnosis typically involves checking transmission fluid levels, inspecting for leaks, conducting a thorough scan with a diagnostic tool, and possibly testing the transmission solenoids and sensors.
6. Is it safe to continue driving a Land Rover with the P0735 fault code?
- It is not recommended to drive the vehicle extensively with the P0735 code present, as continued driving may exacerbate transmission issues, leading to potential safety risks and increased repair costs.
7. How much does it cost to repair the Gear 5 Incorrect Ratio fault code (P0735) in a Land Rover?
- The cost of repairing the P0735 code can vary depending on the underlying cause. It is advisable to consult with a professional mechanic for a proper diagnosis and accurate cost estimate.
8. Can a DIY enthusiast resolve the P0735 code issue in a Land Rover?
- While basic checks like inspecting transmission fluid levels can be performed by DIY enthusiasts, diagnosing and repairing the complex causes of the P0735 code typically requires professional expertise and specialized tools.
9. Will resetting the OBDII system clear the P0735 code in a Land Rover?
- Resetting the OBDII system may temporarily clear the fault code, but it will reappear if the underlying issue causing the Gear 5 Incorrect Ratio fault (P0735) is not addressed and resolved.
10. How can regular maintenance help prevent the occurrence of OBDII code P0735 in a Land Rover?
- Regular maintenance, such as timely transmission fluid changes, can help prevent issues that may trigger the P0735 code, ensuring the smooth operation and longevity of the transmission system.
Discuss the causes and fixes for P0735 Land Rover OBDII Code
-
hi I am stuck with a range rover 2007 I am a gearbox specialist .I am after reconditioning a 6hp26 gearbox and torque convertor and I am still having same problem when it goes into 4th gear it reffs up a little and then runs straight true to 5 and then 6 and then goes into safe mode the code comes up as p0735 and then I tried a valve body and still the same . please let me now if you any avoice for me .. thank you . my email address is [email protected]
-
Hi I have the same problem with mine had the gearbox and tour converter refurbished and the fault still comes on won't seem to change down from 6tj gear to 5 seems to be on acceleration when I press the accelerator then the fault comes on pull over and switch ignition off fault clears.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
