Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2007 Mercury MontereyFACTORY OEM SERVICE PROCEDURE
Exterior Lighting: STOPLAMPS
SMART JUNCTION BOX (SJB) DIAGNOSTIC TROUBLE CODE (DTC) LIST
| DTC | Description | Perform Test |
|---|---|---|
| B1342 | ECU is Defective | CLEAR the DTCs. RETRIEVE the DTCs. If DTC B1342 is retrieved, INSTALL a new SJB. REFER to MULTIFUNCTION ELECTRONIC MODULES article. TEST the system for normal operation. |
| B1485 | Brake Pedal Input Circuit Short to Battery | Go to Pinpoint Test H . |
| B2044 | Left Rear Stoplamp Circuit Short to Ground | Go to Pinpoint Test G . |
| B2045 | Left Rear Stoplamp Circuit Open | Go to Pinpoint Test G . |
| B2046 | Right Rear Stoplamp Circuit Short to Ground | Go to Pinpoint Test G . |
| B2047 | Right Rear Stoplamp Circuit Open | Go to Pinpoint Test G . |
| B2519 | High Mount Stoplamp Circuit Failure | If the high mounted stoplamp is inoperative, go to Pinpoint Test G
. If the high mounted stoplamp is always on, go to Pinpoint Test H . |
| B2528 | Left Rear Stoplamp Circuit Short to Battery | Go to Pinpoint Test H . |
| B2534 | Right Rear Stoplamp Circuit Short to Battery | Go to Pinpoint Test H . |
| All other DTCs | - | REFER to MULTIFUNCTION ELECTRONIC MODULES article. |
Factory Service Tools
Use the Manual With the Right Hardware
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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