How to service and repair the Engine Control Module on 2002 Mercury Mountaineer?

The Engine Control Module should be disassembled by unplugging the battery ground cable to service it and repair it. Thereafter, disconnect the three Powertrain Control Module (PCM) connectors. Take off the two nuts which attach the module, and the glovebox door assembly. The second step is to remove the bracket and the PCM by removing the bolt. Installation In reverse order.

OEM 2002 Mercury Mountaineer Engine Control Module

Engine Control Computer

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4 Engine Control Modules found

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2002 Mercury Mountaineer ECM Part Number: 3L2Z-12A650-AXCRM
Product Specifications
- Other Name: Reman Module - Engine Control - EEC; Engine Control Module (ECM); Engine Control Module
- Replaces: 2L2Z-12A650-HE, 3L2Z-12A650-AYC, 2U7Z-12A650-CHA, 3U7Z-12A650-BKB, 3U7Z-12A650-BSB, 3U7Z-12A650-BLB, 2L2Z-12A650-PE, 3U7Z-12A650-BRB, 2U7Z-12A650-CJA, 3L2Z-12A650-AXB, 3L2Z-12A650-AXC, 3L2Z-12A650-AYB
- Base No.: 12A650
- Item Weight: 3.50 Pounds
- Item Dimensions: 10.1 x 7.7 x 3.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 3L2Z-12A650-AXCRM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2002 Mercury Mountaineer Submodels:
- Base | 8 Cyl 4.6 L GAS
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2002 Mercury Mountaineer ECM Part Number: 1U7Z-12A650-CYDRM
Product Specifications
- Other Name: Module - Engine Control; Engine Control Module
- Base No.: 12A650
- Item Weight: 2.20 Pounds
- Item Dimensions: 10.1 x 7.5 x 3.4 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 1U7Z-12A650-CYDRM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2002 Mercury Mountaineer Submodels:
- Base | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS
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2002 Mercury Mountaineer ECM Part Number: 1U7Z-12A650-BPBRM
Product Specifications
- Other Name: Module - Engine Control; Engine Control Module
- Base No.: 12A650
- Item Weight: 2.80 Pounds
- Item Dimensions: 10.2 x 7.5 x 3.3 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 1U7Z-12A650-BPBRM
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2002 Mercury Mountaineer Submodels:
- Base, Premier | 8 Cyl 4.6 L GAS
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2002 Mercury Mountaineer ECM Part Number: 1L2Z-12A650-SD
Product Specifications
- Other Name: Module - Engine Control; Engine Control Module
- Base No.: 12A650
- Item Weight: 2.30 Pounds
- Item Dimensions: 10.9 x 7.1 x 2.8 inches
- Condition: New
- Fitment Type: Direct Replacement
- SKU: 1L2Z-12A650-SD
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
More Info
Fits the following 2002 Mercury Mountaineer Submodels:
- Base | 6 Cyl 4.0 L FLEX, 6 Cyl 4.0 L GAS

2002 Mercury Mountaineer Engine Control Module

If you're seeking quality and affordability, look no further than our extensive inventory of genuine 2002 Mercury Mountaineer Engine Control Module available at FordPartsDeal.com. You can confidently purchase our OEM 2002 Mercury Mountaineer Engine Control Module as they are supported by the manufacturer's warranty and our hassle-free return policy, alongside the benefit of our fast delivery service.

2002 Mercury Mountaineer Engine Control Module Parts Q&A

Q: How to service and repair the Engine Control Module on 2002 Mercury Mountaineer?
A: The Engine Control Module should be disassembled by unplugging the battery ground cable to service it and repair it. Thereafter, disconnect the three Powertrain Control Module (PCM) connectors. Take off the two nuts which attach the module, and the glovebox door assembly. The second step is to remove the bracket and the PCM by removing the bolt. Installation In reverse order.