Battery Junction Box (BJB)
NOTE:
For component location, see ELECTRICAL COMPONENT LOCATOR
article.
BATTERY JUNCTION BOX RELAY IDENTIFICATION
| RELAY DESCRIPTION |
|---|
| Front blower motor relay |
| Rear window defrost relay |
| A/C clutch relay |
| High intensity discharge headlamp relay, left |
| Fuel pump relay |
| Reversing lamps relay |
| Trailer tow relay, left turn |
| Trailer tow relay, right turn |
| High intensity discharge headlamp relay, right |
| PCM power relay |
| Run/start Relay |
| Trailer tow relay, battery charge |
| Trailer tow relay, parking lamp |
| Starter Relay |
| Air suspension compressor relay |
BATTERY JUNCTION BOX FUSE IDENTIFICATION LEGEND
| Fuse | Amps | Circuits protected |
|---|---|---|
| F4 | 30 | Third row folding seat relay, left |
| F5 | 40 | Trailer electronic brake control module |
| F6 | 60 | ABS control module |
| F7 | 40 | Power fold running board module (Navigator) |
| F8 | 40 | Climate controlled seat module |
| F9 | 60 | ABS control module |
| F10 | 20 | Power point, console 1 |
| F11 | 30 | Rear blower motor relay 1 |
| F12 | 25 | Trailer tow relay, parking lamp |
| F13 | 30 | Trailer tow relay, battery charge |
| F14 | - | Not used |
| F15 | - | Not used |
| F23 | 15 | Exterior rear view mirror, LH side, Exterior rear view mirror, RH side |
| F24 | 40 | Front blower motor relay |
| F25 | - | Not used |
| F26 | - | Not used |
| F27 | 30 | Power liftgate module |
| F28 | 40 | Rear window defrost relay |
| F29 | 30 | Power seat switch, right |
| F30 | 10 | A/C clutch relay |
| F31 | 15 | Brake pedal position switch |
| F32 | 20 | Fuel pump relay |
| F33 | 20 | Reversing lamps relay |
| F34 | 25 | Trailer tow relay, left turn |
| F35 | 20 | Four-wheel drive control module |
| F36 | 10 | Powertrain Control Module (PCM), EVAP canister vent control solenoid |
| F37 | 15 | 6R75 automatic transmission (Expedition), 6HP26 automatic transmission (Navigator) |
| F38 | 30 | Third row folding seat relay, right |
| F39 | 50 | Air suspension compressor relay |
| F40 | 30 | Starter relay |
| F41 | 20 | Power point, instrument panel (Expedition), Power point, console 2 (Navigator) |
| F42 | - | Not used |
| F43 | 20 | Four-wheel drive control module (Expedition) |
| F44 | 20 | High intensity discharge headlamp relay, left (Navigator) |
| F45 | 30 | Power seat switch, left (without memory), Driver seat module (with memory) |
| F46 | 40 | Run/start relay |
| F47 | 30 | Air suspension module |
| F48 | 20 | High intensity discharge headlamp relay, right (Navigator) |
| F49 | 30 | Windshield wiper motor |
| F50 | 30 | PCM power relay |
| F51 | 20 | Power point, rear |
| F52 | 20 | Cigar lighter, front |
| F63 | 15 | Trailer tow connector, 7-pin |
| F64 | - | Not used |
| F65 | 10 | Air suspension module |
| F66 | - | Not used |
| F67 | 10 | Front blower motor relay |
| F68 | - | Not used |
| F69 | 30 | Smart Junction Box (SJB) |
| F70 | 20 | A/C clutch relay, Electronic fan clutch, Heated Positive Crankcase Ventilation (PCV) valve |
| F71 | 5 | Powertrain Control Module (PCM), Fuel pump motor diode |
| F72 | 20 | Coil On Plug (COP) 1, Coil On Plug (COP) 2, Coil On Plug (COP) 3, Coil On Plug (COP) 4, Coil On Plug (COP) 5, Coil On Plug (COP) 6, Coil On Plug (COP) 7, Coil On Plug (COP) 8, Ignition transformer capacitor 1, Ignition transformer capacitor 2 |
| F73 | 5 | 6R75 automatic transmission (Expedition), 6HP26 automatic transmission (Navigator) |
| F74 | 20 | Brake pedal position switch, Charge Motion Control Valve (CMCV), Heated Oxygen Sensor (HO2S) #11, Heated Oxygen Sensor (HO2S) #12, Heated Oxygen Sensor (HO2S) #21, Heated Oxygen Sensor (HO2S) #22, Mass Air Flow/Intake Air Temperature (MAF/IAT) sensor, Vapor management valve, Variable Camshaft Timing (VCT) valve 1, Variable Camshaft Timing (VCT) valve 2 |
| F75 | 5 | Integrated wheel ends solenoid |
| F76 | 20 | Powertrain Control Module (PCM) |
| F77 | 10 | ABS control module |