FixVault

X50A Fuse Block

Fig 1: X50A Fuse Block - Underhood Bottom View
GM2467323Courtesy of GENERAL MOTORS CORP.
Fig 2: X50A Fuse Block - Underhood Label
GM2467340Courtesy of GENERAL MOTORS CORP.
X50A FUSE BLOCK - UNDERHOOD FUSE AND RELAY IDENTIFICATION LEGEND

No. Device Label Name Fuse And Relay Description Rating Circuits
1 - F1UA Fuse 15A Transmission Control Module
2 - F2UA Fuse 15A Engine Control Module
3 - Not Used N/A Not Used
5 - F5UA Fuse 15A Transmission Control Module, Engine Control Module, Mass Air Flow/Intake Air Temperature Sensor, Output Speed Sensor
6 - F6UA Fuse 30A Windshield Wiper Relays
7 - Not Used N/A Not Used
8 - F8UA Fuse 15A Fuel injectors
9 - F9UA Fuse 15A Ignition Coil, Fuel Injectors
10 - F10UA Fuse 15A Engine Control Module, Output Speed Sensor
11 - F11UA Fuse 10A Heated Oxygen Sensors
12 - F12UA Fuse 30A Starter Motor
13 - F13UA Fuse 7.5A Evaporative Emission (EVAP) Canister Vent Solenoid Valve
14 - Not Used N/A Not Used
15 - Not Used N/A Not Used
16 - F16UA Fuse 7.5A Air Quality Sensor
17 - F17UA Fuse 5A Inflatable Restraint Sensing and Diagnostic Module
18 - F18UA Fuse 10A Fuel Pump Control Module
19 - Not Used N/A Not Used
20 - F20UA Fuse 20A Fuel Pump Relay
21 - F21UA Fuse 30A Windows Motors, Front Door
22 - Not Used N/A Not Used
23 - Not Used N/A Not Used
24 - F24UA Fuse 30A Windows Motors, Front Door
25 - Not Used N/A Not Used
26 - F26UA Fuse 40A Electronic Brake Control Module (EBCM)
27 - F27UA Fuse 30A Remote Control Door Lock Receiver
28 - F28UA Fuse 40A Rear Defogger Grid
29 - Not Used N/A Not Used
30 - F30UA Fuse 15A Electronic Brake Control Module (EBCM)
31 - F31UA Fuse 20A Body Control Module
32 - F32UA Fuse 20A Body Control Module
33 - F33UA Fuse 30A Heated Seat Control Module
34 - F34UA Fuse 25A Sunroof Control Module
35 - F35UA Fuse 30A Audio Amplifier
36 - Not Used N/A Not Used
37 - F37UA Fuse 10A Headlamp - Right High Beam
38 - F38UA Fuse 10A Headlamp - Left High Beam
39-40 - Not Used N/A Not Used
41 - Not Used N/A Not Used
42 - F42UA Fuse 20A/30A Cooling Fan Relays, Cooling Fan Motor
43 - Not Used N/A Not Used
44 - Not Used N/A Not Used
45 - F45UA Fuse 30A/40A Cooling Fan High Speed Relay, Cooling Fan Motor
46 - F46UA Fuse 10A Cooling Fan Relays
47 - F47UA Fuse 10A Heated Oxygen Sensors, Throttle Body
48 - F48UA Fuse 15A Fog Lights, Front
49 - Not Used N/A Not Used
50 - Not Used N/A Not Used
51 - F51UA Fuse 15A Horn
52 - F52UA Fuse 5A Instrument Cluster
53 - F53UA Fuse 10A Inside Rearview Mirror
54 - F54UA Fuse 5A Headlamp Switch, Electrical Auxiliary Heater, HVAC Control Module
55 - F55UA Fuse 7.5A Window Switches, Front, Mirror Switch
56 - F56UA Fuse 15A Windshield Washer Pump
57 - F57UA Fuse 15A Steering Column Lock Control Module
58 - Not Used N/A Not Used
59 - F59UA Fuse 30A Fuel Heater
60 - F60UA Fuse 7.5A Outside Rearview Mirrors
61 - Not Used N/A Not Used
62 - F62UA Fuse 10A A/C Compressor Clutch Relay, A/C Compressor Clutch
63 - Not Used N/A Not Used
64 - F64UA Fuse 5A Inflatable Restraint Sensing and Diagnostic Module
65 - Not Used N/A Not Used
66 - Not Used N/A Not Used
67 - F67UA Fuse 20A Fuel Pump Control Module
68 - Not Used N/A Not Used
69 - F69UA Fuse 5A Body Control Module
70 - F70UA Fuse 5A Rain Sensor
71 - Not Used N/A Not Used
1 - KR29 A/C Compressor Relay - A/C Compressor Clutch
2 - KR27 Starter Relay - Starter
3 - KR20F Cooling Fan Relay - Cooling Fan
4 - KR12C Windshield Wiper Speed Control Relay - Windshield Wiper Speed Control
5 - KR12B Windshield Wiper Relay - Windshield Wiper
6 - Not Used - Not Used
7 - KR75 Powertrain Relay - Powertrain
8 - KR23A Fuel Pump Relay - Fuel Pump
9 - KR20A Cooling Fan Relay - Cooling Fan Medium Speed 1
10 - KR20B Cooling Fan Relay - Cooling Fan Medium Speed 2
11 - Not Used - Not Used
12 - KR20E Cooling Fan Speed Control Relay - Cooling Fan Speed Control (Or in Relay Block - Under-bonnet)
13 - KR20D Cooling Fan High Speed Relay - Cooling Fan High Speed Relay
14 - Not Used - Not Used
15 - KR73 Ignition Main Relay - Ignition Main Relay
16 - KR22 Fuel Heater Relay - Fuel Heater Relay
17 - KR5 Rear Window Defogger Relay - Rear Window Defogger
NOTE: Relays listed below are non-serviceable Printed Circuit Board (PCB) relays and are internal to the block
- - KR3 - Horn Relay
- - KR11 - Windshield Washer Pump Relay
- - KR46 - Front Fog Lamp Relay
- - KR48 - Headlamp High Beam Relay