p0736 reverse incorrect ratio
P0736 Reverse Incorrect Ratio
Definition: The P0736 code indicates that the powertrain control module (PCM) has detected an incorrect gear ratio in reverse gear. This means that the actual engine speed does not match the expected engine speed for reverse gear, suggesting a potential issue with the transmission system.
p0736 reverse incorrect ratio – Severe
Common Causes
p0736 reverse incorrect ratio
- Low transmission fluid level
- Dirty or contaminated transmission fluid
- Faulty transmission solenoid
- Transmission valve body issues
- Faulty torque converter clutch solenoid
Common Misdiagnosis
OBD2 Code: P0736
Description: Reverse Incorrect Ratio
Common Misdiagnosis: Faulty transmission control module (TCM) or engine control module (ECM), when the actual issue is a mechanical problem within the transmission such as worn clutches, bands, or solenoids.
Common Diagnostic Steps
OBD2 Code: P0736
Description: Reverse Incorrect Ratio
- Check the transmission fluid level and condition. Refill or replace as necessary.
- Inspect the transmission wiring harness for damage or loose connections.
- Test the operation of the shift solenoids using a scan tool.
- Examine the valve body for any blockages or malfunctions.
- Perform a pressure test on the transmission to check for internal leaks.
- Inspect and test the input and output speed sensors for proper operation.
- If applicable, update or reprogram the Transmission Control Module (TCM) software.
- If all else fails, consider inspecting internal components of the transmission such as clutches, bands, and gears for wear or damage.