AutoCodes – Saab – P1923 Saab

P1923 Saab Code - CAN Data Bus Transmission Control Module

Quick Answer

P1923 Saab indicates CAN Data Bus Transmission Control Module. Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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: P1923 Saab indicates CAN Data Bus Transmission Control Module.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module (TCM) harness is open or shorted, Transmission Control Module (TCM) 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 2,819

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 Sep 28, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1923 Saab Description

OBDII Code P1923 Saab - CAN Data Bus Transmission Control Module - AutoCodes.com — P1923 Saab Code - CAN Data Bus Transmission Control Module

What does this mean?

What are the Possible Causes of the DTC P1923 Saab?

Faulty Transmission Control Module (TCM)
Transmission Control Module (TCM) harness is open or shorted
Transmission Control Module (TCM) circuit poor electrical connection

How to Fix the DTC P1923 Saab?

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 P1923 Saab 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 P1923 Saab code?

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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 P1923 Saab Code

1. What are the common symptoms of OBDII code P1923 in a Saab related to the CAN Data Bus Transmission Control Module?

- Common symptoms include transmission shifting issues, engine stalling, and the illumination of the Check Engine Light.

2. What are the possible causes of OBDII code P1923 in a Saab?

- The code P1923 can be triggered by issues such as faulty transmission control module, damaged wiring or connectors, or a malfunctioning CAN bus communication system.

3. How can I diagnose the OBDII code P1923 in my Saab?

- Diagnosing the code involves using an OBDII scanner to retrieve the code and then inspecting the transmission control module, wiring, and CAN bus connections for any visible damage or issues.

4. Are there any repair tips for fixing OBDII code P1923 in a Saab?

- Repair tips include checking and repairing any damaged wiring or connectors, ensuring proper connections to the transmission control module, and resetting the fault code after repairs are made.

5. Can a DIY enthusiast fix OBDII code P1923 in a Saab?

- While some basic checks and repairs can be performed by a DIY enthusiast, diagnosing and repairing complex issues related to the transmission control module and CAN bus system may require professional expertise.

6. Is it safe to continue driving my Saab with OBDII code P1923 present?

- It is not recommended to drive your Saab with the code P1923 present, as it can lead to potential transmission failure or other serious issues that may affect the vehicle's performance and safety.

7. How much does it typically cost to repair OBDII code P1923 in a Saab?

- The cost of repairing OBDII code P1923 can vary depending on the underlying cause of the issue, but it may range from a few hundred to a few thousand dollars, especially if components like the transmission control module need to be replaced.

8. Can a software update fix OBDII code P1923 in a Saab?

- In some cases, a software update to the transmission control module or other related systems may resolve the issue triggering the code P1923. It is recommended to consult with a professional mechanic or dealership for guidance on software updates.

9. Will disconnecting the battery reset OBDII code P1923 in a Saab?

- Disconnecting the battery may temporarily clear the fault code, but it will not fix the underlying issue causing the code P1923. Proper diagnosis and repairs are necessary to permanently resolve the problem.

10. How long does it take to repair OBDII code P1923 in a Saab?

- The repair time for OBDII code P1923 can vary depending on the complexity of the issue and the availability of parts. It may take anywhere from a few hours to a full day for diagnosis and repairs to be completed.