Toyota·Tundra·2019 Toyota Tundra·Wiring
Wiring diagram

2019 Toyota Tundra — power distribution

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Power distribution

R K 40A 10A 50A 30A 30A 10A 5A 30A 5A 25A G 30A 25A 15A 10A 40A 50A D 50A 50A 150A A 180A ENGINE ROOM J/B EFI RELAY A/F RELAY HORN RELAY ENGINE ROOM R/B B1 C1 I4 I3 I2 I1 2G 2H 2N 2F 2L 2J BLK/BLU LT GRN RED BLU GRY LT BLU VIO PNK GRN WHT BLK BLU YEL YEL LT GRN LT GRN BLU BLK BLU BLK BLK BLK BLK BLK (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) ALT FUSE HORN FUSE EFI 1 FUSE A/F FUSE IG2 MAIN FUSE A/PUMP 1 FUSE A/PUMP 2 FUSE MAIN FUSE LH-J/B FUSE HTR FUSE SPARE FUSE BATTERY ALT-S FUSE GATEWAY FUSE F/PMP FUSE AI-HTR FUSE ST FUSE ABS 1 FUSE TOWING FUSE ETCS FUSE JB-B FUSE ABS 2 FUSE (NOT USED) TO IG2 RELAY (DIAGRAM 3 OF 5) AIR CONDITIONING SYSTEM ENGINE CONTROLS, CRUISE CONTROL & TRANSMISSIONS SYSTEMS ENGINE CONTROLS SYSTEM TO DRIVER SIDE J/B (DIAGRAM 2 OF 5) TO ENGINE ROOM J/B (DIAGRAM 3 OF 5) HEADLIGHTS SYSTEM STARTING/ CHARGING SYSTEM STARTING/ CHARGING SYSTEM TO SHORT PIN (DIAGRAM 5 OF 5) STARTING/ CHARGING SYSTEM STARTING/ CHARGING SYSTEM ENGINE CONTROLS & CRUISE CONTROL SYSTEMS ENGINE CONTROLS SYSTEM EXTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM ENGINE CONTROLS SYSTEM ANTI-LOCK BRAKES SYSTEM TO DRIVER SIDE J/B (DIAGRAM 4 OF 5)
1 2 1 2 N Q L M H E C 20A 20A 30A 20A 15A 5A 5A 10A 10A 7.5A 5A B 5A A 5A 10A DRIVER SIDE J/B MAIN BODY ECU BKUP LP RELAY MAIN BODY ECU J/C J179 J/C J184 J/C J182 J/C A49 ENGINE CONTROL MODULE MAIN BODY ECU J165 9 13 14 AJ2 16 A24 41 A24 20 J34 J14 J55 H11 1 4 2 3 J42 K11 K2 K15 I6 K3 J12 J11 H2 H12 I3 H10 21 21 17 22 20 19 18 H17 19 22 J56 12 16 17 18 19 15 32 I31 J35 I30 J17 H23 J30 K26 19 AJ10 3 17 18 21 20 16 22 30 J40 J6 14 G1 K22 J53 I11 K30 H32 PNK BLK ORG PNK ORG VIO PNK GRY GRN BLU PNK PPL/GRN ORG VIO RED BLU BLK PNK WHT/BLK BRN WHT WHT BRN VIO PNK YEL ORG LT BLU WHT PNK LT BLU GRN LT GRN BLK RED BLU GRN PNK LT GRN LT BLU LT GRN VIO GRY RED BLU GRN WHT LT GRN BLK GRY YEL WHT BLK YEL VIO (LEFT END OF DASH) (UPPER RIGHT CENTER OF DASH) (UPPER CENTER OF DASH) (LEFT SIDE OF ENGINE COMPT) (UPPER CENTER OF DASH) (LEFT END OF DASH) (BOTTOM LEFT CENTER OF DASH) ACC RELAY IG1 1 RELAY TAIL RELAY SPARE FUSE ECU- ACC FUSE SPARE FUSE ECU- IG1 2 FUSE ECU- IG1 4 FUSE BKUP LP FUSE PANEL FUSE AM1 FUSE TAIL FUSE ACC CUT RELAY PWR RELAY IG1 2 RELAY ECU- IG1 1 FUSE ECU- IG1 3 FUSE DOOR FUSE SPARE FUSE POWER FUSE WASHER FUSE DOOR R/R FUSE DOOR R/L FUSE (COLUMN SHIFT) (NOT USED) (NOT USED) (NOT USED) (NOT USED) 4.6L 5.7L & 5.7L FLEX FUEL (NOT USED) (NOT USED) W/ AUTO UP W/O AUTO UP J2 FROM IG2 2 RELAY (DIAGRAM 4 OF 5) TO OBD FUSE (DIAGRAM 5 OF 5) TO IG2 2 RELAY (DIAGRAM 4 OF 5) ENGINE CONTROLS, EXTERIOR LIGHTS & TRANSMISSIONS SYSTEMS HEADLIGHTS & EXTERIOR LIGHTS SYSTEMS EXTERIOR LIGHTS & INTERIOR LIGHTS SYSTEMS TO IGNITION SWITCH (DIAGRAM 4 OF 5) FROM IGNITION SWITCH (DIAGRAM 4 OF 5) FROM ENGINE ROOM J/B (DIAGRAM 1 OF 5) HEADLIGHTS SYSTEM ANTI-LOCK BRAKES SYSTEM EXTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM MIRRORS SYSTEM NAVIGATION & SOUND SYSTEMS ENGINE CONTROLS, EXTERIOR LIGHTS, NAVIGATION & TRANSMISSIONS SYSTEMS TO ENGINE ROOM R/B (DIAGRAM 3 OF 5) ELECTRONIC POWER STEERING & MEMORY SYSTEMS STARTING/ CHARGING SYSTEM ENGINE CONTROLS, AIR CONDITIONING, CRUISE CONTROL, EXTERIOR LIGHTS, COMPUTER DATA LINES, DEFOGGER, NAVIGATION & TRANSMISSIONS SYSTEMS POWER TOPS SYSTEM WARNING SYSTEMS EXTERIOR LIGHTS SYSTEM ANTI-LOCK BRAKES SYSTEM DOOR LOCKS & ANTI-THEFT SYSTEMS NAVIGATION SYSTEM FROM J/C J183 (DIAGRAM 5 OF 5) FROM J/C J186 (DIAGRAM 4 OF 5) NAVIGATION & SOUND SYSTEMS TRANSMISSIONS SYSTEM WIPER/ WASHER SYSTEM SHIFT INTERLOCK SYSTEM AIR CONDITIONING & DEFOGGER SYSTEMS POWER WINDOWS & MEMORY SYSTEMS POWER WINDOWS SYSTEM AIR CONDITIONING & DEFOGGER SYSTEMS
10A 10A J G 15A 15A 40A 30A 40A 30A 7.5A 40A F 40A F 30A 20A 30A 15A B E E B E 15A 25A 7.5A D ENGINE ROOM R/B ENGINE ROOM J/B J/C A44 J/C A49 ENGINE ROOM J/B ENGINE ROOM R/B J/C A44 5 8 8 10 9 11 B8 3 5 AJ10 16 B6 B7 1 2 1 2 AJ11 6 5 1 3 2 2M RED VIO WHT/BLK WHT/BLK GRN BLK LT GRN LT BLU YEL YEL VIO YEL WHT/BLK BLK GRN WHT/BLK PNK LT BLU BLU BLK WHT GRN LT GRN YEL RED YEL RED GRY GRN GRN WHT/BLK WHT/BLK RED WHT/BLK WHT/BLK RED RED WHT BLU WHT/BLK BLK BLK BLU BLK (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) (LEFT FRONT OF ENGINE COMPT) (LEFT FRONT OF ENGINE COMPT) (UPPER RIGHT CENTER OF DASH) (BOTTOM LEFT CENTER OF DASH) (BOTTOM LEFT CENTER OF DASH) 4WD FUSE LED DRL FUSE TOW BRK FUSE DEFOG FUSE MIR HTR FUSE SUB BATT FUSE IG 3 FUSE IG 4 FUSE TI & TE FUSE IG2 RELAY INJ FUSE IGN FUSE P/OUTLET 1 RELAY P/OUTLET 1 FUSE CARGO LP FUSE TOW TAIL FUSE POWER 2 FUSE DEICER FUSE IG 5 FUSE FOG FR FUSE LEFT POWER OUTLET SOCKET ASSEMBLY 1 RIGHT POWER OUTLET SOCKET ASSEMBLY 1 A2 A2 J2 J2 FROM POWER 2 FUSE (DIAGRAM 3 OF 5) TRANSMISSIONS SYSTEM WIPER/ WASHER SYSTEM HEADLIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM ELECTRONIC POWER STEERING & MEMORY SYSTEMS DEFOGGER SYSTEM EXTERIOR LIGHTS SYSTEM FROM IG2 MAIN FUSE (DIAGRAM 1 OF 5) ENGINE CONTROLS & CRUISE CONTROL SYSTEMS ENGINE CONTROLS SYSTEM FROM ENGINE ROOM J/B (DIAGRAM 1 OF 5) ENGINE CONTROLS SYSTEM FROM IGNITION SWITCH (DIAGRAM 4 OF 5) TO IG 4 FUSE (DIAGRAM 3 OF 5) FROM J/C J184 (DIAGRAM 2 OF 5) SEATS SYSTEM HEADLIGHTS SYSTEM INTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM DEFOGGER SYSTEM POWER WINDOWS SYSTEM
P L M 5A 5A 15A 7.5A 10A 10A 25A K 5A J H C OFF ACC LOCK ON START B ON START LOCK ACC OFF ON START ACC LOCK OFF ON START OFF ACC LOCK J/C J186 DRIVER SIDE J/B ALL DR LOCK RELAY L/D DR UNLOCK RELAY D-DR UNLOCK RELAY J/C J179 J/C A70 I43 J33 I8 I32 H15 16 18 17 I19 K36 I20 J47 H9 2 11 9 3 1 H3 J9 J44 F1 11 9 10 2 4 7 6 1 5 RED BLK LT GRN BLU RED LT GRN ORG BLK GRN RED WHT ORG BLK BLU BLK VIO BLU BLK LT GRN BLU RED WHT GRN BLK LT GRN BLU (LEFT SIDE OF DASH) (LEFT END OF DASH) (UPPER RIGHT CENTER OF DASH) (LOWER LEFT END OF DASH) IGNITION SWITCH AM2 FUSE HAZ FUSE SPARE FUSE D/L FUSE STOP FUSE S-HORN FUSE IG2 2 RELAY SPARE FUSE METER-IG2 FUSE ECU-IG2 3 FUSE A/BAG-IG2 FUSE (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) STARTING/ CHARGING SYSTEM TO ENGINE ROOM J/B (DIAGRAM 3 OF 5) FROM DRIVER SIDE J/B (DIAGRAM 2 OF 5) TO DRIVER SIDE J/B (DIAGRAM 2 OF 5) SHIFT INTERLOCK SYSTEM TO ACC CUT RELAY (DIAGRAM 2 OF 5) TO ECU-B 2 FUSE (DIAGRAM 5 OF 5) TO IG1 1 RELAY (DIAGRAM 2 OF 5) FROM IG1 1 RELAY (DIAGRAM 2 OF 5) ENGINE CONTROLS, STARTING/CHARGING, ANTI-LOCK BRAKES, CRUISE CONTROL, DOOR LOCKS, INSTRUMENT CLUSTER, WIPER/WASHER, HEADLIGHTS, EXTERIOR LIGHTS, ANTI-THEFT, WARNING, SUPPLEMENTAL RESTRAINTS, INTERIOR LIGHTS, POWER TOPS, NAVIGATION, TRANSMISSIONS & SOUND SYSTEMS SUPPLEMENTAL RESTRAINTS SYSTEM DOOR LOCKS & ANTI-THEFT SYSTEMS INSTRUMENT CLUSTER & EXTERIOR LIGHTS SYSTEMS FROM ENGINE ROOM R/B (DIAGRAM 1 OF 5) ENGINE CONTROLS, ANTI-LOCK BRAKES, CRUISE CONTROL, EXTERIOR LIGHTS, SHIFT INTERLOCK & TRANSMISSIONS SYSTEMS ANTI-THEFT SYSTEM SHIFT INTERLOCK SYSTEM COMPUTER DATA LINES SYSTEM ANTI-LOCK BRAKE SYSTEM
30A 30A 30A 10A 7.5A N 5A 5A 15A 20A 30A R 5A Q P 5A ENGINE ROOM R/B DRIVER SIDE J/B MAIN BODY ECU MAIN BODY ECU J/C J183 J/C J186 DOME CUT RELAY K4 I7 J13 K21 6 K20 J54 H24 K29 19 22 20 16 21 31 I22 J32 H1 J10 1 2 H22 K31 J23 H21 K32 16 19 20 22 18 21 J22 LT GRN BLU PPL/WHT VIO PNK WHT LT GRN BLK ORG ORG VIO RED RED PPL/LT BLU RED LT GRN GRN GRN PNK BRN YEL GRY LT GRN (LEFT SIDE OF ENGINE COMPT) (LEFT END OF DASH) (UPPER LEFT CENTER OF DASH) (LEFT SIDE OF DASH) ECU-DCC FUSE AMP FUSE SHORT PIN ECU-DCC 1 FUSE ECU-DCC 2 FUSE OBD FUSE ECU-B 2 FUSE ECU-B 1 FUSE RADIO FUSE SPARE FUSE P/SEAT F/L FUSE DOME FUSE SPARE FUSE P/SEAT FUSE S/ROOF FUSE (NOT USED) (NOT USED) (NOT USED) (NOT USED) (NOT USED) FROM JB-B FUSE (DIAGRAM 1 OF 5) NAVIGATION & SOUND SYSTEMS FROM TAIL RELAY (DIAGRAM 2 OF 5) FROM SPARE FUSE (DIAGRAM 4 OF 5) TO ACC CUT RELAY (DIAGRAM 2 OF 5) ANTI-LOCK BRAKES & ELECTRONIC POWER STEERING SYSTEMS ANTI-THEFT SYSTEM NAVIGATION & SOUND SYSTEMS COMPUTER DATA LINES SYSTEM MEMORY SYSTEMS SUPPLEMENTAL RESTRAINTS SYSTEM POWER WINDOWS SYSTEM AIR CONDITIONING SYSTEM DOOR LOCKS & ANTI-THEFT SYSTEMS ELECTRONIC POWER STEERING SYSTEM MIRRORS SYSTEM DOOR LOCKS & WARNING SYSTEMS INSTRUMENT CLUSTER SYSTEM SEATS SYSTEM POWER TOPS SYSTEM SEATS & MEMORY SYSTEMS