2011-2013 Infiniti M37 ABS Module: Decoding Part Numbers and Required Programming
This guide covers common failure symptoms, critical part number matching for AWD/RWD models, and the necessary programming for your Infiniti M37's anti-lock brake system.
- A replacement ABS module MUST be programmed and calibrated by an Infiniti/Nissan dealer using their CONSULT diagnostic tool. This is not an optional step.
- You must match the OEM part number from your old module exactly. Compatibility depends on drivetrain (AWD/RWD) and options like adaptive cruise control.
- The most common failure symptom is the combination of the ABS, VDC OFF, and SLIP warning lights all being illuminated at once.
- Before replacing the module, have a mechanic rule out simpler faults like low brake fluid or a bad wheel speed sensor, which can cause the same warning lights.
Symptoms of a Failing 2011-2013 M37 ABS Module
When the ABS module in your Infiniti M37 begins to fail, your car will give you clear warning signs on the dashboard. The most common symptom is the simultaneous illumination of three specific lights.
- ABS Warning Light: This indicates a fault within the anti-lock braking system.
- VDC OFF Light: This shows that the Vehicle Dynamic Control (stability control) system is disabled.
- SLIP Light: This indicates the traction control system is offline.
These lights will typically come on and stay on, indicating a persistent fault. While the car's conventional brakes will still work, all electronic assistance for braking and stability will be disabled. In some cases, you may not notice any change in how the car drives, but in others, braking can feel unbalanced after a module replacement if it is not calibrated.
Common Diagnostic Trouble Codes (DTCs)
To properly diagnose the issue, you'll need an OBD-II scanner capable of reading ABS codes (often called 'C' codes). Common codes associated with a failing M37 ABS module include:
| Code | Meaning | Common Cause |
|---|---|---|
| C1109 | Power and Ground System | This code points to an issue with the ABS unit's power supply or ground connection. It often indicates an internal failure of the module's electronic control unit. |
| C1110 | Controller Failure / CAN Communication Bus | Indicates an internal failure of the ABS control unit or a problem with the communication network that connects it to other vehicle systems. |
| C1130 | Engine Signal | This ABS code indicates a problem with the signal coming from the Engine Control Module (ECM). Before condemning the ABS module, all engine-related DTCs (P-codes) must be diagnosed and fixed first. |
Pro Tip: Before assuming the ABS module is bad, always check the simple things first. Low brake fluid is a common reason for the VDC and SLIP lights to come on. Also, inspect the wheel speed sensors and their wiring, as a single faulty sensor can disable the entire system.
Part Number and Model Compatibility: Getting it Right is Crucial
Infiniti used several different ABS modules for the 2011-2013 M37 based on drivetrain, wheel size, and optional features. You must match the part number from your original module exactly. Installing the wrong module will result in it not working, and you will have wasted time and money.
Warning: Do not rely on visual similarity. The internal programming is different for each configuration. Check the white sticker on your old module for the correct OEM part number.
Key differences to be aware of:
- Drivetrain: All-Wheel Drive (AWD) and Rear-Wheel Drive (RWD) models use different modules.
- Adaptive Cruise Control: Models equipped with the Technology Package, which includes Adaptive (or Intelligent) Cruise Control, require a specific module.
- Sport Package / Wheel Size: The Sport Package, often including 20-inch wheels, can also determine which module is correct.
One common part number for AWD models without adaptive cruise control is 47660-1MC2C. This part number supersedes (replaces) the older number 47660-1MF1B. There are numerous other part numbers for RWD and other option packages, so verification is essential.
Programming and Calibration: A Dealer Visit is Required
This is not a plug-and-play part. A replacement ABS module—whether it is new, used, or remanufactured—must be programmed and calibrated to your specific vehicle.
After the physical installation, a specific procedure called "Deceleration G-Sensor Calibration" must be performed. According to service information and mechanic experiences, this calibration can only be done using the official Nissan/Infiniti dealer diagnostic tool, known as the CONSULT. Without this step, the ABS light will remain on, and the braking performance may feel incorrect or unbalanced.
While some high-end independent shops may have tools that claim to perform this function, success is not guaranteed. The most reliable method is to have the vehicle towed to an Infiniti or Nissan dealership for final calibration after you or your mechanic has installed the part.
Buying a Used 2011-2013 M37 ABS Module
Given that a new OEM module can cost over $1,000, a used OEM module is an excellent, cost-effective alternative. Used modules are original factory equipment, ensuring proper fit and function once programmed. Here’s what to look for:
- Match the Part Number: This is the most important rule. The part number on the replacement unit must be an exact match to your original.
- Inspect the Connectors: Check the electrical connector pins for any signs of corrosion (green or white powder) or damage. A clean connector is a good sign.
- Check for Leaks: Inspect the hydraulic pump portion of the assembly for any signs of brake fluid leaks or staining. Some older Infiniti ABS units were recalled for leaks that could cause an electrical short and, in rare cases, a fire.
- Source from a Reputable Seller: Purchase from a seller that offers a warranty. This protects you if the part is dead on arrival. Mileage is less of a concern for an electronic module than its physical condition and whether it came from a flood-damaged vehicle.
Replacement Cost Comparison
The cost to replace an M37 ABS module can vary significantly. Programming is an additional cost that must be factored in.
| Part Type | Estimated Cost |
|---|---|
| New OEM | $850 - $1,300+ |
| Remanufactured | $250 - $600 |
| Used OEM | $80 - $400 |
| Shop Labor (Installation & Brake Bleed) | $300 - $500 |
| Dealer Programming/Calibration | $125 - $250 |
Frequently Asked Questions (FAQ)
Do I really have to program a used ABS module?
Yes. The module is tied to the vehicle's specific options and safety systems. After installation, it must be calibrated using a dealer-level scan tool (Infiniti CONSULT) to learn the vehicle's sensors, particularly the G-sensor. Skipping this step will leave the ABS warning light on and the system inoperative.
Can I drive my M37 with a bad ABS module?
Yes, but with significant limitations. Your car will still have its standard hydraulic brakes, but the anti-lock (ABS), traction control (SLIP), and stability control (VDC) features will be disabled. This means your wheels can lock up during a hard stop, increasing stopping distances and the risk of skidding, especially on wet or slippery roads.
What is the difference between the ABS module and the ABS pump?
On the Infiniti M37, these two components are integrated into a single unit. The aluminum block with brake line connections and valves is the hydraulic pump/actuator, while the black plastic box bolted to it is the electronic control module. They are replaced as one complete assembly.
Could a bad wheel speed sensor cause the same ABS, VDC, and SLIP lights?
Absolutely. A faulty wheel speed sensor is a very common cause for these warning lights. A diagnostic scan is essential to see if the fault code points to a specific wheel speed sensor or to the module itself before you purchase an expensive part.
Technical Specifications
OEM Part Numbers: 47660-1MC2C 47660-1MF1A 47660-1MF1B 476601MF1B 476601MF2A 47660-1MA9D 47660-1MH2A 47660-1MC4C
The complete assembly includes the electronic control unit and the hydraulic pump/actuator. Requires programming and G-sensor calibration via Infiniti CONSULT software after installation.
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The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
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- Symptoms of a Failing 2011-2013 M37 ABS Module
- Common Diagnostic Trouble Codes (DTCs)
- Part Number and Model Compatibility: Getting it Right is Crucial
- Programming and Calibration: A Dealer Visit is Required
- Buying a Used 2011-2013 M37 ABS Module
- Replacement Cost Comparison
- Frequently Asked Questions (FAQ)
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