Ram ProMaster 2021 Fuse Box Info
Fuse box location:
The fuse box is located on the driver's side under the instrument panel.
Engine compartment fuse box:
Fuse Box Diagram | Layout
Passenger compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 31 | 5A | INT/A |
| 34 | 7.5A | Clearance Lights |
| 36 | 15A | +30 (ACM – TPCU – RRM – DLC) |
| 37 | 5A | INT (BRAKE NO – IPC) |
| 38 | 15A | Central Locking |
| 42 | 5A | INT (BSM – SAS – BRAKE NC) / DASM |
| 43 | 20A | Bi-Directional Washer Pump |
| 47 | 20A | Driver Power Window |
| 48 | 20A | Passenger Power Window |
| 49 | 5A | INT (PAM – CCS – RRM – ECM) |
| 50 | 7.5A | INT (ORC) |
| 51 | 5A | INT (REAR CAMERA-AUX) / HALF-DRVM-BSD |
| 53 | 5A | +30 (IPC) + FTM |
| 92 | 7.5A | Left Fog Lamp |
| 93 | 7.5A | Right Fog Lamp |
Right Central Pillar Fuses:
The right central pillar fuse panel is located on the interior side at the base of the passenger side B pillar.
| Fuse/Relay N° | Rating | Functions |
| 81 | 7.5A | Seat Heater |
| 83 | 20A | Rear Left Windows Heater |
| 84 | 20A | Rear Right Windows Heater |
| 86 | 20A | Auxiliary Switch (From Battery) – If Equipped |
| 87 | 20A | Auxiliary Switch (From Ignition) – If Equipped |
Engine compartment fuse box:
| Fuse/Relay N° | Rating | Functions |
| 01 | 40A | Electronic Stability Control (ESC) Pump |
| 02 |
20A (3.6 Gasoline Engine) |
Starter Relay 3.6L (3.6 Gasoline Engine) |
| 04 |
50A (3.6 Gasoline Engine) |
Secondary Power Distribution Center (PDC) (Trans Power Relay, Vacuum Pump, KL30 for the Shifter Transmission Module [STM]) (3.6 Gasoline Engine) |
| 06 |
40A (non A/C) 60A (A/C) |
Engine Cooling Fan - 2nd Speed |
| 07 |
50A (non A/C) 60A (A/C) |
Engine Cooling Fan - 1st Speed |
| 08 | 40A | Passenger Compartment Blower |
| 09 | 15A | Rear Power Outlet |
| 10 | 15A | Horn |
| 14 | 20A | Power Outlet |
| 15 | 7.5A | USB Charger |
| 16 |
7.5A |
KL15 Shifter Transmission Module (STM) (3.6), KL15 Starter Relay Coil (3.6 Gasoline Engine) |
| 17 |
20A |
Engine Control Module (ECM), Injectors (3.6 Gasoline Engine) |
| 18 |
7.5A |
KL30 Engine Control Module (ECM), KL30 Main Relay Coil (3.6 Gasoline Engine) |
| 19 | 7.5A | A/C Compressor (If Equipped) |
| 20 | 30A | Windshield Wiper |
| 21 | 15A | Fuel Pump |
| 22 |
20A |
Engine Control Module (ECM), Ignition Coils (3.6 Gasoline Engine) |
| 23 | 20A | Electronic Stability Control (ESC) Valves |
| 24 | 7.5A | KL15 Vacuum Pump Relay Coil (3.6 Gasoline Engine) — If Equipped |
| 30 | 15A | Heated Mirrors |
Front PDC Additional Fuses:
The additional fuse box is located inside the front PDC Box.
| Fuse/Relay N° | Rating | Functions |
| 61 | 20A | Vacuum Pump (3.6 Gasoline Engine) |
| 62 | 30A | Transmission Power RELE (3.6 Gasoline Engine) |
| 66 | 5A | Shifter Transmission Module (STM) (3.6 Gasoline Engine) |
