| TSB 12-11-12 |
|
| Publication Date: November 16, 2012 | |
ISSUE:
Some 2011-2013 Mustangs vehicles may exhibit an intermittent drivability condition, crank/no start, a blown fuse 13 in the battery junction box and may have Diagnostic Trouble Code (DTC) P0627 stored in the Powertrain Control Module (PCM).
ACTION:
Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE
- Remove the rear seat cushion. Refer to Workshop Manual (WSM), Section 501-10.
- Inspect the fuel pump module wire harness for a chafing. Is chafing found? (Figure 1)
Figure 1 – Article 12-11-12- No – this article does not apply. Refer to Powertrain Control/Emissions Diagnosis (PC/ED) manual for normal diagnosis.
- Yes – repair the wiring harness. Refer to the Wiring Diagram (WD), Section 5.
- Route the harness so that it will lie in the recess area of the rear seat when the seat cushion is installed. (Figure 2)
Figure 2 – Article 12-11-12 - Install the rear seat cushion. Refer to WSM, Section 201-10.
| PART NUMBER | PART NAME |
| F2UZ-14526-N No products found. | 15 Amp Mini-fuse |
WARRANTY STATUS:
Eligible Under Provisions Of New Vehicle Limited Warranty Coverage
IMPORTANT: Warranty/ESP coverage limits/policies/prior approvals are not altered by a TSB. Warranty/ESP coverage limits are determined by the identified causal part and verified using the OASIS part coverage tool.
| OPERATION | DESCRIPTION | TIME |
| 121112A | 2011-2013 Mustang : Check DTCs, Inspect And Repair Wire Harness (Do Not Use With Any Other Labor Operations) | 0.8 Hr. |
DEALER CODING
| BASIC PART NO. | CONDITION CODE |
| 14a005 | 30 |
- For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
- Cleans, restores, protects the entire fuel system (fuel injectors, carburetors, intake valves and combustion chambers)
- Restores: lost power, acceleration, lost fuel economy, and operation of the fuel gauge sensor
- Reduces: rough idle, engine surge, hesitation, and spark plus fouling
- Improves: cold start performance, and fuel stability for up to one year
Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API
- DEEP FUEL SYSTEM CLEANING - Cleans the entire fuel system (injectors, carburetor passageways, intake valves, and chamber areas) to help restore power, MPG, and throttle response.
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Last update on 2026-06-18 / Affiliate links / Images from Amazon Product Advertising API
- The world’s #1 fuel additive for both gasoline and diesel engines
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- Cleans and lubricates the fuel system, including fuel injectors, carburetor and combustion chamber
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- Increases power and acceleration by improving fuel flow and reducing deposit buildup
Last update on 2026-06-10 / Affiliate links / Images from Amazon Product Advertising API
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