P0736 OBD-II Trouble Code: Reverse Incorrect Gear Ratio

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0736 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0736 code

P0736 is a diagnostic trouble code (DTC) for "Reverse Incorrect Gear Ratio". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P0736 DIAGNOSTIC Get a fair and transparent estimate upfront

check engine light

P0736 code definition

When the PCM stores this code, it means that the PCM has detected an abnormality in the ratio of a particular gear.

What the P0736 code means

The P0736 code is considered to be generic, in that it can occur in any make or model of vehicle made post-1995. Vehicles that are equipped with automatic transmissions use a torque converter to increase the output from the engine to the transmission, and drive the rear wheels.

A P0736 code is stored when the PCM identifies a problem with shifting into reverse, or driving in reverse. Various sensors within the PCM, ECM and TCM deliver identify slippage within the torque converter and the transmission speed sensor, and if the acceptable values do not match, then the DTC is set, and the Check Engine Light comes on.

Other codes associated with P0736 are P0730, through P0735.

What causes the P0736 code?

A P0736 code is stored when the vehicle delays shifting into reverse gear, or will not shift into reverse at all. This could be due to a problem within the transmission, but there can be other causes as well, including:

How does a mechanic diagnose the P0736 code?

The first step in diagnosing the P0736 code is to use a scanner to identify the code, and also to determine if any other codes have been stored. If there are multiple gear ratio codes, that usually indicates that there is slippage in the transmission. Next, your mechanic will:

  • Check the dipstick to make sure that the transmission fluid is not low
  • Look at the fluid to determine if it is clean
  • Smell the fluid to determine if there is a burnt odor
  • If the fluid smells burnt, remove the transmission pan to check for debris
  • Check for burnt wiring and faulty circuitry
  • Inspect the transmission to determine if damage has occurred that will require extensive repairs

Then your mechanic will do any maintenance that is necessary (topping up or replacing the fluid, for instance), and take your vehicle for a test drive. Upon returning, he or she will do another scan to make sure that the P0736 code has cleared. If the code does not come back, then there is a good chance that it was due to low or dirty fluid.

Common mistakes when diagnosing the P0736 code

The P0736 code can be difficult to diagnose, and in some cases, the problem may need to get worse before a proper diagnosis can be made. One of the most common mistakes in diagnosing a P0736 code is to assume that the problem is caused by a faulty shift solenoid. Then, solenoids are replaced when they are actually in good working order. Or, if the shift solenoids are working properly, a mechanic may assume that the PCM itself is defective. This is hardly ever the case.

How serious is the P0736 code?

You may not even notice any symptoms other than the Check Engine Light coming on, or you may find that you have difficulty getting your vehicle to shift into reverse. Sometimes, you may not be able to use the reverse gear at all. This is not a life-threatening situation, so you do not have to pull over to the side of the road and wait for a tow truck. However, because of the potential for serious damage to your transmission, you should get the problem taken care of at your earliest convenience.

What repairs can fix the P0736 code?

Most of the time, you will not need costly repairs – probably, all your vehicle needs is to have the transmission fluid replaced or topped up. Rarely, you may need to have a shift solenoid replaced. Even more rarely, the problem could be in the PCM unit itself, in which case it will have to be replaced and re-programmed.

Additional comments for consideration regarding the P0736 code

If your vehicle has high mileage, and the transmission fluid has never been topped up or replaced, this could be the reason for the P0736 code.

Need help with a P0736 code?

YourMechanic can send a certified mechanic to your home or workplace to perform any repairs that may be needed due to a P0736 code being recorded, or for any other reason. Just call us at 1-800-701-6230, or use our convenient online form to book an appointment. We’ll give you a free quote before we come out, and then we’ll get you back up and running.

trouble codes
Check Engine Light
P0736

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0736 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,696

Rating Summary
3,372
162
42
24
96
3,372
162
42
24
96

Robert

30 years of experience
75 reviews
Robert
30 years of experience
1999 JAGUAR XJ8 - CHECK ENGINE LIGHT IS ON - ATLANTA, GEORGIA

Chris

12 years of experience
312 reviews
Chris
12 years of experience
He came on time and diagnosis of my car why engine sign was on.. YM sent me a reasonable quote and I booked him for repair my car next week.. Thanks YM and Chris..
2004 MAZDA 6 - CHECK ENGINE LIGHT IS ON - CHULA VISTA, CALIFORNIA

Rodney

33 years of experience
336 reviews
Rodney
33 years of experience
Rod always goes above and beyond to repair our car!
2006 ACURA MDX - CHECK ENGINE LIGHT IS ON - SACRAMENTO, CALIFORNIA

Fabrice

17 years of experience
108 reviews
Fabrice
17 years of experience
Great man. Knowledgeable and professional. Wish he was my full time mechanic.
2004 DODGE DURANGO - CHECK ENGINE LIGHT IS ON - ORLANDO, FLORIDA

More related articles

Insurance Requirements for Car Registration in Kentucky
The Kentucky Transportation Cabinet requires that all drivers in Kentucky carry liability automotive insurance, or “financial responsibility” in order to operate a vehicle legally and maintain vehicle...
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...
P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance...

Related questions

Q: will a temperture switch cause an engine not to start?

The engine coolant temperature sensor sill not cause the engine to die or not start, but can cause the fuel system to go full rich. The engine dies when getting hot is most likely due to an ignition spark loss...

Q: I replace the thermostat and was told to drive it for engine light to go out but its still on after 5 days what can i do?

Anytime a vehicle repair is performed to remedy faults that arise from a check engine light (CEL) diagnostic, at the conclusion of the repair, a professional mechanic uses an appropriate scan tool to turn OFF the check engine light. The...

Q: 2004 jag xj8 4.2 v8 auto trans 5spd had trans fluid leak. lost approx 6qts. repaired leak and filled per instructions on alldata w

The two codes, P0736 and P0730 overlap to some extent insofar as possible faults. If the transmission fluid got really low, the transmission might have overheated with several consequences: burnt fluid; mechanical damage, case/part distortion, damage to hydraulic seals on...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com