AutoCodes – Generic – P1733

P1733 Code - Problem In Shift Control System

Quick Answer

Hydraulic pressure to each clutch is controlled by the shift valve. Common causes include Faulty Shift Solenoid Valves, Shift Solenoid Valves harness is open or shorted, Shift Solenoid Valves circuit poor electrical connection. 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: P1733 indicates Problem In Shift Control System.
Common causes: Common causes include Faulty Shift Solenoid Valves, Shift Solenoid Valves harness is open or shorted, Shift Solenoid Valves circuit poor electrical connection.
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.

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Code Popularity 26,147

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 21, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1733 Description

Hydraulic pressure to each clutch is controlled by the shift valve. The shift valve activates according to the ON/OFF status of shift solenoid valves A, B, C, D, and E. Hydraulic pressure supply in D position is shown above. The line pressure or the clutch pressure control pressure (CPC A, CPC B, or CPC C) is supplied to each clutch by the shift valve activated. The Powertrain Control Module (PCM) computes the actual ratio of mainshaft to countershaft revolutions. If a difference between the actual ratio and the commanded gear occurs when shifting to each gear position, a malfunction in the shift solenoid valve or the hydraulic system is detected and a Diagnostic Trouble Code (DTC) is stored.

OBDII Code P1733 - Problem In Shift Control System - AutoCodes.com — P1733 Code - Problem In Shift Control System

What does this mean?

What are the Possible Causes of the DTC P1733?

Faulty Shift Solenoid Valves
Shift Solenoid Valves harness is open or shorted
Shift Solenoid Valves circuit poor electrical connection

How to Fix the DTC P1733?

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1733 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 P1733 code?

Need more information on how to fix the P1733 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P1733 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P1733 Acura — Problem In Shift Control System
P1733 Chrysler — 4C Pressure Switch Sense Circuit
P1733 Dodge — 4C Pressure Switch Sense Circuit
P1733 Ford — Gearshift Load Control Malfunction
P1733 Honda — Problem In Shift Control System
P1733 Hyundai — Rear Speed Sensor High Input
P1733 Jaguar — Gearshift Load Control Malfunction
P1733 Jeep — 4C Pressure Switch Sense Circuit
P1733 Lincoln — Gearshift Load Control Malfunction
P1733 Mercury — Gearshift Load Control Malfunction

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P1733 Code

1. What are common symptoms of OBDII code P1733 (Problem In Shift Control System)?

Symptoms may include harsh shifting, delayed shifting, transmission slippage, or the transmission staying in one gear.

2. What are possible causes of OBDII code P1733?

Potential causes include low transmission fluid levels, a faulty shift control solenoid, electrical issues in the transmission system, or a malfunctioning transmission control module.

3. How can I diagnose OBDII code P1733 at home?

You can start by checking the transmission fluid level and condition, inspecting for any visible damage or leaks in the transmission system, and using an OBDII scanner to read and clear the code.

4. Can driving with OBDII code P1733 cause further damage to my vehicle?

Continuing to drive with this code may lead to increased wear and tear on the transmission components, potentially resulting in more severe transmission issues over time.

5. How much does it typically cost to repair OBDII code P1733?

The cost of repairs can vary depending on the exact cause of the code, but it may range from a few hundred to over a thousand dollars, including parts and labor.

6. Are there any DIY repair tips for addressing OBDII code P1733?

While some simple checks like inspecting the transmission fluid level can be done at home, diagnosing and repairing the underlying issues causing P1733 may require professional expertise and specialized tools.

7. Is it safe to continue driving my vehicle with OBDII code P1733?

It is not recommended to ignore this code and continue driving, as it could lead to further transmission problems and potential safety hazards on the road.

8. How urgent is it to address OBDII code P1733?

It is advisable to address this code as soon as possible to prevent possible damage to the transmission system and ensure the safe operation of your vehicle.

9. Can resetting the OBDII code P1733 on my own fix the issue?

Resetting the code may temporarily clear the warning light, but it will not resolve the underlying problem causing the shift control system issue.

10. How can I prevent OBDII code P1733 from recurring in the future?

Regularly maintaining your vehicle, including checking and changing the transmission fluid as recommended by the manufacturer, can help prevent this code from reoccurring.