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Home >> Mercedes Benz >> 2025 >> eSprinter Base, _NA_ >> Repair and Diagnosis >> External Pages >> Different car >> Section 2778 (Information Center - Instrumentation, Message Center And Warning Chimes -- F250-F550 Super Duty) >> Diagnosis And Testing >> Instrumentation, Message Center and Warning Chimes >> DTC Charts >> Smart Junction Box (SJB) DTC Chart

Smart Junction Box (SJB) DTC Chart

WARNING: This page is about a different car, the 2010 Ford Pickup, 2010 Ford F550 Super Duty, 2010 Ford F450 Super Duty, and 2010 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
SMART JUNCTION BOX (SJB) DTC CHART

DTC Description Action
B1352 Ignition Key-In Circuit Failure If the chime sounds with the door ajar and no key in the ignition, GO to PINPOINT TEST AU .
If the key-in-ignition chime is inoperative, GO to PINPOINT TEST AV .
B2479 Park Brake Switch Circuit Short to Ground GO to PINPOINT TEST S .
C1125 Brake Fluid Level Sensor Input Circuit Failure GO to PINPOINT TEST S .
All other DTCs - REFER to the Diagnostic Trouble Code (DTC) Chart in MULTIFUNCTION ELECTRONIC MODULES .
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