P0736 Subaru Code - Reverse 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 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
- P0736 Subaru indicates Reverse 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 P0736 Subaru 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
What are the Possible Causes of the DTC P0736 Subaru?
- Low transmission fluid level
- Dirty transmission fluid
- Shift solenoids
- Transmission mechanical problems
- Transmission hydraulic control circuit
How to Fix the DTC P0736 Subaru?
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 P0736 Subaru 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 P0736 Subaru Code
1. What are the common symptoms of OBDII code P0736 in a Subaru related to "Reverse Incorrect Ratio"?
- Common symptoms include difficulty shifting into reverse, slippage when in reverse gear, and hesitation or jerking when trying to reverse.
2. What are some potential causes of OBDII code P0736 in a Subaru indicating "Reverse Incorrect Ratio"?
- Possible causes include a faulty transmission range sensor, low transmission fluid level or poor quality fluid, a malfunctioning solenoid, or internal transmission issues.
3. How can I diagnose the OBDII code P0736 in a Subaru related to "Reverse Incorrect Ratio"?
- Diagnosis typically involves checking the transmission fluid level and condition, inspecting the transmission range sensor, conducting a thorough scan of the transmission system using a professional OBDII scanner, and performing a road test to observe the symptoms.
4. What repairs may be needed to fix OBDII code P0736 in a Subaru for "Reverse Incorrect Ratio"?
- Repairs may include replacing the transmission range sensor, servicing or flushing the transmission fluid, repairing or replacing faulty solenoids, or addressing internal transmission issues through a rebuild or replacement.
5. Can driving with OBDII code P0736 in a Subaru for "Reverse Incorrect Ratio" cause further damage?
- Continuing to drive with this code present can potentially lead to further damage to the transmission components, resulting in more extensive and costly repairs down the line. It is advisable to address the issue promptly.
6. Are there any DIY tips to troubleshoot OBDII code P0736 in a Subaru indicating "Reverse Incorrect Ratio"?
- DIY enthusiasts can start by checking the transmission fluid level and condition, inspecting for any visible leaks, and ensuring the transmission range sensor is functioning correctly. However, more in-depth diagnosis and repairs may require professional assistance.
7. How much does it typically cost to repair OBDII code P0736 in a Subaru with the "Reverse Incorrect Ratio" issue?
- The cost of repair can vary depending on the exact cause of the problem. Repairs for this code may range from a few hundred dollars for minor fixes like fluid replacement to over a thousand dollars for more extensive transmission repairs.
8. Can resetting the OBDII code P0736 in a Subaru related to "Reverse Incorrect Ratio" temporarily resolve the issue?
- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the incorrect ratio in reverse gear is not addressed, the problem is likely to reoccur. It is best to diagnose and repair the root cause.
9. Is it safe to continue driving my Subaru with OBDII code P0736 for "Reverse Incorrect Ratio" if the symptoms are intermittent?
- While intermittent symptoms may not always indicate a severe issue, it is still recommended to have the problem diagnosed and repaired promptly to prevent any potential transmission damage or safety hazards while driving.
10. How long does it typically take to repair OBDII code P0736 in a Subaru with the "Reverse Incorrect Ratio" issue?
- The repair time can vary based on the specific cause of the problem and the extent of repairs needed. Minor fixes such as fluid replacement may take a few hours, while more complex transmission repairs could require several days.
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