P0735 Infiniti Code - 5th. Gear Malfunction
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 Infiniti indicates 5th. Gear Malfunction.
- 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 Infiniti 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 Infiniti?
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
How to Fix the DTC P0735 Infiniti?
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 Infiniti 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.
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Frequently Asked Questions about P0735 Infiniti Code
1. What does the OBDII code P0735 mean for an Infiniti vehicle?
P0735 indicates a 5th gear ratio mismatch, signaling that the transmission's actual gear ratio does not match the expected ratio for 5th gear.
2. What are common symptoms of the P0735 code in an Infiniti?
Symptoms include difficulty shifting into 5th gear, slipping in 5th gear, reduced fuel efficiency, and possible activation of the check engine light.
3. What can cause the P0735 code on an Infiniti?
Common causes include low transmission fluid, a faulty shift solenoid, worn clutch plates, a damaged valve body, or internal transmission issues.
4. Can driving with the P0735 code damage my Infiniti?
Yes, continuing to drive with this code can lead to further transmission damage and more expensive repairs.
5. How can I diagnose the P0735 code on my Infiniti?
Start by checking the transmission fluid level and condition, scan for additional trouble codes, and perform a road test to monitor transmission behavior.
6. How do I fix the P0735 code on an Infiniti?
Repairs may involve refilling or replacing transmission fluid, replacing faulty solenoids, repairing the valve body, or rebuilding the transmission.
7. Is the P0735 code specific to Infiniti vehicles?
No, the P0735 code is not Infiniti-specific; it applies to all OBDII-compliant vehicles but may have causes unique to Infiniti models.
8. How much does it cost to fix the P0735 code on an Infiniti?
Repair costs vary widely depending on the issue, ranging from $100 for fluid replacement to several thousand dollars for a transmission rebuild.
9. Can low transmission fluid cause the P0735 code?
Yes, insufficient or dirty transmission fluid can lead to improper gear engagement and trigger the P0735 code.
10. Should I reset the P0735 code on my Infiniti without fixing the problem?
No, resetting the code without addressing the underlying issue will not solve the problem and may result in further transmission damage.
Discuss the causes and fixes for P0735 Infiniti OBDII Code
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