X50A Fuse Block - Underhood Label (LUV/LUJ)
WARNING: This page is about a different car, the 2015 Chevrolet Trax. However, it is still accessible from the selected car via links, so may be relevant.
X50A FUSE BLOCK - UNDERHOOD, FUSE AND RELAY IDENTIFICATION LEGEND
| No. | Device Label Name | Fuse And Relay Description | Rating | Circuits |
|---|---|---|---|---|
| Mini Fuses | ||||
| 1 | SUNROOF | F1UA | 25A | K61 Sunroof Control Module (CF5) |
| 2 | OSRVM SW | F2UA | 7.5A | S52 Outside Rearview Mirror Switch (DL7) |
| 3 | CANISTER VENT SOLENOID (LUV) NOT USED (2H0) |
F3UA | 5A | Q13 Evaporative Emission Vent Solenoid Valve |
| 4 | NOT USED | F4UA | 25A | Not Used |
| 5 | EBCM VALVE | F5UA | 30A | K17 Electronic Brake Control Module |
| 6 | NOT USED | F6UA | 5A | Not Used |
| 7 | NOT USED | F7UA | 15A | Not Used |
| 8 | TCB B+ | F8UA | 15A | T12 Automatic Transmission Assembly |
| 9 | BCM RVC | F9UA | 5A | K9 Body Control Module |
| 10 | FSCM R/C (FHA) HDLP LEVELING LH/RH (TR6) |
F10UA | 10A | E13LA Headlamp Assembly ? Left, E13RA Headlamp Assembly ? Right, K27 Fuel Pump Control Module |
| 11 | REAR WIPER | F11UA | 20A | KR7 Rear Wiper Relay |
| 12 | RR WDW DEFOG | F12UA | 25A | E18 Rear Defogger Grid |
| 13 | NOT USED | F13UA | 10A | Not Used |
| 14 | OSRVM HEAT | F14UA | 7.5 A | A9A Outside Rearview Mirror ? Driver (DL7), A9B Outside Rearview Mirror ? Passenger (DL7) |
| 15 | FSCM B+ | F15UA | 20A | K27 Fuel Pump Control Module |
| 16 | HEATED SEAT MODULE | F16UA | 25A | K40 Seat Memory Control Module |
| 17 | TCM R/C | F17UA | 5A | T12 Automatic Transmission Assembly |
| 18 | ECM R/C | F18UA | 5A | K20 Engine Control Module |
| 19 | FUEL PUMP (2H0) NOT USED (LUV) |
F19UA | 20A | KR23A Fuel Pump Relay, A7 Fuel Pump and Level Sensor Assembly |
| 20 | NOT USED | F20UA | 15A | Not Used |
| 21 | FAN RLY (AUX BEC) (LUV) FAN3 RELAY 85 (2H0) |
F21UA | 15A | KR20E Cooling Fan Speed Control Relay, KR20F Cooling Fan Relay |
| 22 | COLD START PUMP (2H0) NOT USED (LUV) |
F22UA | 10A | Not Used |
| 23 | IGNITION COIL / INJECTOR COIL | F23UA | 15A | Q17A Fuel Injector 1, Q17B Fuel Injector 2, Q17C Fuel Injector 3, Q17D Fuel Injector 4, K35 Ignition Coil Module, T8A Ignition Coil 1, T8B Ignition Coil 2, T8C Ignition Coil 3, T8D Ignition Coil 4 |
| 24 | WASHER PUMP | F24UA | 10A | KR6 Rear Window Washer Pump Relay, KR11 Windshield Washer Pump Relay, G24 Windshield Washer Pump |
| 25 | NOT USED | F25UA | 10A | Not Used |
| 26 | CANISTER PURGE SOL WATER VALVE SOL TURBO WASTEGATE SOL (LUV) TURBO BYPASS SOL (LUV) O2 SENSOR PRE/POST IMTV SOL (2H0) |
F26UA | 10A | B52A Heated Oxygen Sensor 1, B52B Heated Oxygen Sensor 2, E41 Engine Coolant Thermostat Heater, Q12 Evaporative Emission Purge Solenoid Valve, Q40 Turbocharger Bypass Solenoid Valve, Q42 Turbocharger Wastegate Solenoid Valve |
| 27 | NOT USED | F27UA | 10A | Not Used |
| 28 | NOT USED | F28UA | 10A | Not Used |
| 29 | ECM PT IGN-1 / IGN-2 | F29UA | 20A | K20 Engine Control Module |
| 30 | MAF SENSOR | F30UA | 10A | B75C Multifunction Intake Air Sensor |
| 31 | HIGH BEAM LH | F31UA | 15A | E13LA Headlamp Assembly ? Left |
| 32 | HIGH BEAM RH | F32UA | 15A | E13RA Headlamp Assembly ? Right |
| 33 | ECM B+ | F33UA | 15A | K20 Engine Control Module |
| 34 | HORN | F34UA | 15A | P12A Horn ? High Note, P12B Horn ? Low Note, P12 Horn |
| 35 | A/C CLUTCH | F35UA | 10A | KR29 A/C Compressor Clutch Relay, G1 A/C Compressor |
| 36 | FRONT FOG LAMP | F36UA | 15A | E29LF Fog Lamp ? Left Front (T3U), E29RF Fog Lamp ? Right Front (T3U) |
| J-Case Fuses | ||||
| 1 | EBCM PUMP | F1UB | 40A | K17 Electronic Brake Control Module |
| 2 | FRT WIPER | F2UB | 30A | KR12B Windshield Wiper Relay |
| 3 | BLOWER | F3UB | 40A | K8 Blower Motor Control Module |
| 4 | IEC R/C | F4UB | 30A | X51A Fuse Block ? Instrument Panel |
| 5 | NOT USED | F5UB | 40A | Not Used |
| 6 | NOT USED | F6UB | 30A | Not Used |
| 7 | NOT USED | F7UB | 40A | Not Used |
| 8 | COOL FAN LOW/MID (LUV) COOL FAN LOW (2H0) |
F8UB | 40A (LUV) 30A (2H0) |
KR20C Cooling Fan Low Speed Relay, KR20P Cooling Fan Medium Speed Relay |
| 9 | COOL FAN HIGH | F9UB | 60A (LUV) 40A (2H0) |
KR20D Cooling Fan High Speed Relay |
| 10 | EVP | F10UB | 30A | KR14 Brake Booster Pump Motor Relay |
| 11 | STARTER SOL | F11UB | 30A | KR27 Starter Relay |
| U - Micro Relays | ||||
| 2 | FUEL PUMP (2H0) NOT USED (LUV) |
KR23A Fuel Pump Relay | - | A7 Fuel Pump and Level Sensor Assembly |
| 4 | SPARE | Spare | - | Not Used |
| HC-Micro Relays | ||||
| 7 | STARTER | KR27 Starter Relay | - | M64 Starter Motor |
| MINI Relays | ||||
| 1 | RUN CRANK | KR73 Ignition Main Relay | - | F4UA, F10UA, F17UA, F18UA, F19UA |
| 3 | COOL FAN MID (LUV) NOT USED (2H0) |
KR20P Cooling Fan Medium Speed Relay | - | R10 Cooling Fan Resistor, G10 Cooling Fan Motor |
| 5 | PT RELAY | KR75 Engine Controls Ignition Relay | - | F21UA, F23UA, F26UA, F28UA, F29UA, F30UA |
| 8 | COOL FAN LOW | KR20C Cooling Fan Low Speed Relay | - | R10 Cooling Fan Resistor, G10 Cooling Fan Motor |
| HC - MINI RELAY | ||||
| 6 | COOL FAN HIGH | KR20D Cooling Fan High Speed Relay | - | R10 Cooling Fan Resistor, G10 Cooling Fan Motor |
| Note: Relays listed below are non-serviceable Printed Circuit Board (PCB) relays and are internal to the block. | ||||
| - | - | KR3 Horn Relay | - | P12 Horn |
| - | - | KR5 Rear Defogger Relay | - | A9A Outside Rearview Mirror - Driver, A9B Outside Rearview Mirror - Passenger, E18 Rear Defogger Grid |
| - | - | KR6 Rear Window Washer Pump Relay | - | G24 Windshield Washer Pump |
| - | - | KR7 Rear Wiper Relay | - | M45 Rear Wiper Motor |
| - | - | KR11 Windshield Washer Pump Relay | - | G24 Windshield Washer Pump |
| - | - | KR12B Windshield Wiper Relay | - | KR12C Windshield Wiper Speed Control Relay, M75 Windshield Wiper Motor |
| - | - | KR12C Windshield Wiper Speed Control Relay | - | M75 Windshield Wiper Motor |
| - | - | KR29 A/C Compressor Clutch Relay | - | Q2 A/C Compressor Clutch |
| - | - | KR31 Coolant Pump Relay - Auxiliary | - | Not Used |
| - | - | KR42L Daytime Running Lamp Relay - Left | - | Not Used |
| - | - | KR42R Daytime Running Lamp Relay - Right | - | Not Used |
| - | - | KR46 Front Fog Lamp Relay | - | E29LF Fog Lamp - Left Front, E29RF Fog Lamp - Right Front |
| - | - | KR48 Headlamp High Beam Relay | - | E13LA Headlamp Assembly - Left, E13RA Headlamp Assembly - Right |
| - | - | KR110 Cold Start Fuel Pump Relay | - | Not Used |
| - | - | KR113 Child Security Lock Disable Relay | - | Not Used |
| Note: Items listed below are diagnostic test points for PCB relays | ||||
| TP4 | - | TP4 | - | Not Used |
| Note: Items listed below are Door Lock/Indicator diagnostic test points for PCB relays | ||||
| TP1 | - | TP1 | - | KR113 Child Security Lock Disable Relay |
| TP5 | - | TP5 | - | KR113 Child Security Lock Disable Relay |
| Note: Items listed below are Wiper/Washer diagnostic test points for PCB relays | ||||
| TP3 | - | TP3 | - | M75 Windshield Wiper Motor |
| TP8 | - | TP8 | - | G24 Windshield Washer Pump |
| TP9 | - | TP9 | - | M45 Rear Wiper Motor |
| TP10 | - | TP10 | - | G24 Windshield Washer Pump |
| Note: Items listed below are A/C Clutch diagnostic test points for PCB relays | ||||
| TP6 | - | TP6 | - | KR29 A/C Compressor Clutch Relay |
| Note: Items listed below are Door Lock/Indicator diagnostic test points for PCB relays | ||||
| TP2 | - | TP2 | - | KR42L Daytime Running Lamp Relay- Left |
| TP7 | - | TP7 | - | KR42R Daytime Running Lamp Relay- Right |