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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 138 (Electrical Center Identification Views) >> Electrical Center Identification Views >> X53A Body Wiring Harness Junction Block - Rear Top View

X53A Body Wiring Harness Junction Block - Rear Top View

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
GM5394171Courtesy of GENERAL MOTORS COMPANY
Usage Table

No. Device Label Name Device Assigned Name Rating Description
Fuses 
F01 RFA F1RA 10A
  • K77 Remote Function Actuator Module
F02 NOT USED F2RA -
  • Not Used
F03 DRVR HTD/SEAT F3RA 15A
  • K29FV Front Seat Heater Vent Control Module
F04 FTZM F4RA 20A
  • K111 Fuel Pump Power Control Module
F05 Not Used F5RA -
  • Not Used
F06 Not Used F6RA -
  • Not Used
F07 Not Used F7RA -
  • Not Used
F08 Not Used F8RA -
  • Not Used
F09 Not Used F9RA -
  • Not Used
F10 MTR ST BLT PASS F10RA -
  • Not Used
F11 CNSTR VENT SOL F11RA 10A
  • Q13 Evaporative Emission Canister Vent Solenoid Valve
F12 S/ROOF F12RA 30A
  • K61 Sunroof Control Module
F13 Not Used F13RA -
  • Not Used
F14 Not Used F14RA -
  • Not Used
F15 PASS HTD/SEAT F15RA 15A
  • K29FV Front Seat Heater Vent Control Module
F16 ACDCINV F16RA 30A
  • Not Used
F17 ESC F17RA 25A
  • K19 Electronic Suspension Control Module (F55)
F18 Not Used F18RA -
  • Not Used
F19 MTR ST BLT DRVR F19RA -
  • Not Used
F20 RR DEFOG F20RA 40A
  • R14L Radio Antenna Ground Coil - Left
F21 DC DC TRANS F21RA 40A
  • T19 Multifunction Power Supply Converter
F22 DRVR WINDW DR/LCK SW F22RA 10A
  • S79D Front Side Door Window Control Switch - Driver
F23 EOCM F23RA 10A
  • B174W Front View Camera - Windshield
  • B233LR Short Range Radar Sensor - Left Rear (UGN)
  • B233RR Short Range Radar Sensor - Right Rear (UGN)
  • B233SL Short Range Radar Rear Side Sensor Left (UKL)
  • B233SR Short Range Radar Rear Side Sensor - Left (UKL)
  • K124 Image Processing Module (UGN)
F24 PASS DRVR WINDW DR/LCK SW F24RA 10A
  • S79D Front Side Door Window Switch - Passenger
F25 Not Used F25RA -
  • Not Used
F26 TIM F26RA 40A
  • T3 Audio Amplifier
F27 RDCM F27RA 40A
  • K164 Differential Control Module
F28 REAR HTD/SEAT 2 F28RA 15A
  • Not Used
F29 Not Used F29RA -
  • Not Used
F30 Not Used F30RA 10A
  • Not Used
F31 DC DC TRANS F31RA 40A
  • T19 Multifunction Power Supply Converter
F32 TREC F32RA 15A
  • K69 Transfer Case Control Module (F46)
F33 CGM/SBZA F33RA 10A
  • B218L Side Obstacle Detection Control Module - Left (UKC)
  • B218R Side Object Sensing Alert Module - Right (UKC)
  • K56 Serial Data Gateway Module
F34 REAR HTD/SEAT 1/VPM F34RA 15A
  • K157 Video Procesing Module (UKL)
F35 HFCR F35RA 10A
  • Not Used
F36 ELM 2 F36RA 20A
  • K219 Lighting Control Module
F37 MSM PASS F37RA 10A
  • K40P Passenger Seat Adjuster Memory Module (AVU)
  • K104P Front Seat Bladder Control Module - Passenger (AVU-AHH/AKE)
  • K134P Front Seat Bolster Memory Module - Passenger (AHH)
  • S64P Front Seat Adjuster Switch - Passenger (A7K+AHH)
  • S65P Front Seat Lumbar Switch - Passenger (A7J)
F38 TRLR 2 F38RA 30A
  • Not Used
F39 RF/RR WINDW F39RA 30A
  • M74P Front Side Door Window Regulator Motor - Passenger
  • K79RR Rear Side Door Window Switch - Right
F40 Not Used F40RA -
  • Not Used
F41 Not Used F41RA -
  • Not Used
F42 AMP F42RA 30A
  • T3 Audio Amplifier
F43 PRK ASSIST MDL F43RA 10A
  • K182 Parking Assist Control Module (UD7/UKG)
F44 MSM DRVR F44RA 10A
  • K40D Driver Seat Adjuster Memory Module (A45)
  • K134D Front Seat Bolster Memory Module - Driver (A45)
  • S64D Front Seat Adjuster Switch - Driver (A45)
  • S65D Front Seat Lumbar Switch - Driver (-A45)
  • K104D Front Seat Bladder Control Module - Driver
F45 ONSTAR F45RA 10A
  • K73 Telematic Control Module (UE1)
F46 Not Used F46RA -
  • Not Used
F47 Not Used F47RA -
  • Not Used
F48 Not Used F48RA -
  • Not Used
F49 TRLR (EUROPE) F49RA 30A
  • Not Used
F50 DRVR SEAT F50RA 30A
  • K40D Driver Seat Adjuster Memory Module (A45)
  • S64D Front Seat Adjuster Switch - Driver
F51 LF/RF WINDW F51RA 30A
  • M74D Front Side Door Window Regulator Motor - Driver
  • S79LR Rear Side Door Window Switch - Left
F52 PASS SEAT F52RA 30A
  • K40P Passenger Seat Adjuster Memory Module (AVU)
  • S64P Front Seat Adjuster Switch - Passenger
Relays 
K53 Not Used - -
  • Not Used
K54 Not Used - -
  • Not Used
K55 RUN (HC) - KR124 Trailer Ignition Power Relay
  • Not Used
Important: Relays listed below are non-serviceable Printed Circuit Board (PCB) relays and are internal to the block. 
- - KR5 Rear Defogger Relay -
  • F20RA Fuse
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