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P1912 Mercedes-Benz Code - Electronic Gear Selector Module: Weak Touch Push Button Voltage

Quick Answer

The P1912 code for Mercedes-Benz indicates a problem with the Electronic Gear Selector Module, specifically related to a weak touch push button voltage. Common causes include Faulty Electronic Gear Selector Module, Loose or damaged electrical connections, Corroded wiring related to the push button. 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
P1912 Mercedes-Benz indicates Electronic Gear Selector Module: Weak Touch Push Button Voltage.
Common causes
Common causes include Faulty Electronic Gear Selector Module, Loose or damaged electrical connections, Corroded wiring related to the push button.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 18, 2024
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Code P1912 Mercedes-Benz Description

The P1912 code for Mercedes-Benz indicates a problem with the Electronic Gear Selector Module, specifically related to a weak touch push button voltage. This module is responsible for controlling the transmission gear selection in the vehicle. When the push button voltage is weak, it can cause issues with shifting gears smoothly or accurately. This can result in difficulty selecting the correct gear, delayed shifting, or even the inability to shift gears at all.

OBDII Code P1912 Mercedes-Benz - Electronic Gear Selector Module: Weak Touch Push Button Voltage
P1912 Mercedes-Benz Code - Electronic Gear Selector Module: Weak Touch Push Button Voltage

Common Causes of P1912 Mercedes-Benz

  1. Faulty Electronic Gear Selector Module
  2. Loose or damaged electrical connections
  3. Corroded wiring related to the push button
  4. Electrical issues within the transmission system
  5. General wear and tear on the module components

Symptoms of P1912 Mercedes-Benz

  1. Difficulty shifting gears
  2. Delayed response when selecting gears
  3. Inability to shift gears
  4. Error messages on the dashboard related to transmission
  5. Intermittent issues with gear selection

How to Fix P1912 Mercedes-Benz

  1. Diagnose the issue by using a diagnostic scanner to confirm the P1912 code and identify the specific cause of the weak touch push button voltage.
  2. Inspect the Electronic Gear Selector Module, electrical connections, and wiring for any visible damage or corrosion.
  3. Test the voltage output from the push button to determine if it is within the normal range.
  4. Replace the Electronic Gear Selector Module if it is found to be faulty, ensuring proper installation and programming.
  5. Clear the error code and test the vehicle to ensure that the gear selection functions properly.

Cost to Fix P1912 Mercedes-Benz

The cost of repairing a weak touch push button voltage in the Electronic Gear Selector Module of a Mercedes-Benz can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair cost can range from $300 to $800. However, it is important to note that labor rates and part prices can differ based on location, the vehicle's make and model, and the specific repair shop. It is recommended to obtain quotes from multiple repair shops to compare prices and ensure a fair estimate.

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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 P1912 Mercedes-Benz Code

1. What are common symptoms of OBDII code P1912 in a Mercedes-Benz related to the Electronic Gear Selector Module?

- Common symptoms include difficulty shifting gears, unresponsive push buttons, and a malfunctioning gear selector display.

2. What could be causing the OBDII code P1912 in a Mercedes-Benz indicating a weak touch push button voltage?

- The most common cause is a faulty Electronic Gear Selector Module, damaged wiring, or a low voltage supply to the push buttons.

3. How can I diagnose the issue causing OBDII code P1912 in my Mercedes-Benz?

- Diagnostic steps may include checking the voltage supply to the gear selector module, inspecting wiring for damage, and performing a scan tool test.

4. Is it safe to continue driving my Mercedes-Benz with the OBDII code P1912 present?

- It is not recommended to drive the vehicle with this issue as it can lead to unpredictable gear shifting and potential safety hazards.

5. Can I repair the Electronic Gear Selector Module myself to address OBDII code P1912 in my Mercedes-Benz?

- Repairing or replacing the Electronic Gear Selector Module should be performed by a qualified technician due to the complexity of the system.

6. What are some tips for preventing OBDII code P1912 in a Mercedes-Benz from occurring again?

- Regular maintenance checks, avoiding water damage to the gear selector area, and addressing any electrical issues promptly can help prevent recurrence.

7. How much does it typically cost to repair the Electronic Gear Selector Module for OBDII code P1912 in a Mercedes-Benz?

- Repair costs can vary depending on the extent of the damage and the specific model of Mercedes-Benz, but it can range from a few hundred to a few thousand dollars.

8. Are there any recalls or technical service bulletins related to OBDII code P1912 in Mercedes-Benz vehicles?

- It is recommended to check with authorized Mercedes-Benz dealerships or online resources for any relevant recalls or technical service bulletins related to this issue.

9. Can a weak battery or alternator cause OBDII code P1912 to appear in a Mercedes-Benz?

- While a weak battery or alternator can potentially cause electrical issues, the specific cause of P1912 related to the Electronic Gear Selector Module is typically internal to that system.

10. How long does it usually take to repair the Electronic Gear Selector Module for OBDII code P1912 in a Mercedes-Benz?

- The repair time can vary depending on the availability of parts and the complexity of the repair process, but it may take several hours to a full day to complete the repair.

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