Toyota·Tacoma·2018 Toyota Tacoma·Wiring
Wiring diagram

2018 Toyota Tacoma — power distribution

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Power distribution

1 2 3 3 4 4 4 3 4 4 3 3 4 3 2 1 A 25A 30A P 10A 10A 10A 20A 20A 10A 30A 20A 15A 20A 15A 10A 10A 10A 15A 120A 120A 50A B 140A E 30A D 10A 20A 10A 30A 50A 30A 30A 30A 30A 50A 50A 40A 10A 40A 30A 15A 15A 80A ENGINE ROOM J/B ENGINE ROOM R/B 2 1 2A 2D 2C 2B 2 IA1 WHT RED RED RED RED WHT VIO WHT RED VIO BLU RED GRN LT BLU BLK BLK (OR BLK/BLU) BLK GRY GRY WHT LT GRN BLK RED RED RED PNK BLK GRN LT BLU BLK RED WHT RED GRY RED BLU BLK BLU YEL YEL RED ORG BLU BLK BLK W/ SMART KEY SYSTEM W/O SMART KEY SYSTEM 3.5L 2.7L (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) ALT FUSE J/B ALT FUSE BATT CHG FUSE CDS FAN FUSE PTC HTR 2 FUSE INV FUSE BKUP LP 1 FUSE TOWING TAIL FUSE PTC HTR 1 FUSE PTC HTR 3 FUSE TOWING BRK 1 FUSE MIR HTR FUSE FOG FR FUSE DRL FUSE HTR FUSE BATTERY EFI MAIN FUSE AIR PMP HTR FUSE RADIO 3 FUSE ABS 1 FUSE RADIO 2 FUSE ABS 2 FUSE AIR PUMP FUSE STOP FUSE TOWING FUSE EFI 1 FUSE D INJ FUSE EFI 2 FUSE HORN FUSE SHORT PIN A/F HTR FUSE DIMMER FUSE ETCS FUSE H-LP LO FUSE S-HORN FUSE AM2 1 FUSE RADIO 1 FUSE ECU-B 2 FUSE ECU-B 3 FUSE ECU-B 1 FUSE TO DRIVER SIDE J/B (DIAGRAM 4 OF 5) STARTING/ CHARGING SYSTEM TO ENGINE ROOM R/B 2 (DIAGRAM 5 OF 5) DEFOGGER SYSTEM STARTING/ CHARGING SYSTEM EXTERIOR LIGHTS SYSTEM HEADLIGHTS SYSTEM AIR CONDITIONING SYSTEM INSTRUMENT CLUSTER SYSTEM HORNS SYSTEM NAVIGATION & SOUND SYSTEMS ANTI-LOCK BRAKES, SHIFT INTERLOCK, ENGINE CONTROLS, CRUISE CONTROL & EXTERIOR LIGHTS SYSTEMS ANTI-LOCK BRAKES SYSTEM ENGINE CONTROLS SYSTEM NAVIGATION & SOUND SYSTEMS TO IG2 MAIN FUSE (DIAGRAM 2 OF 5) STARTING/ CHARGING SYSTEM ANTI-LOCK BRAKES & TRANSMISSIONS SYSTEMS ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM NAVIGATION & SOUND SYSTEMS SUPPLEMENTAL RESTRAINTS SYSTEM ANTI-THEFT & DOOR LOCKS SYSTEMS HEADLIGHTS SYSTEM TO DRIVER SIDE J/B (DIAGRAM 2 OF 5) TO IGNITION SWITCH (DIAGRAM 3 OF 5)
1 1 R 5A Q 20A 7.5A 20A 15A 7.5A 50A P 10A 10A 7.5A 7.5A 10A 20A D G ENGINE ROOM R/B INJ RELAY DRIVER SIDE J/B L/D-DR UNLOCK RELAY ALL DR LOCK RELAY D-DR UNLOCK RELAY MAIN BODY ECU DOME CUT RELAY J/C J7 H26 A39 A20 L1 A34 D6 A56 A37 F15 31 A18 A38 H31 8 10 9 11 A48 A8 A32 F14 5 3 2 1 5 F2 A33 A54 A35 ORG RED RED RED PNK PNK RED VIO GRN BLK BLK ORG RED PNK LT GRN VIO LT GRN BLU RED RED GRN BLK LT BLU BLK LT GRN WHT/BLK WHT/BLK RED LT GRN RED PNK RED BLU BLU BLU BLU RED BLK ORG ORG RED BLK RED RED BLK (2.7L) 2.7L 3.5L W/ SMART KEY SYSTEM (LEFT SIDE OF ENGINE COMPT) (LEFT KICK PANEL) (LEFT END OF DASH) (BEHIND RIGHT SIDE OF INSTRUMENT CLUSTER) J/B-B FUSE IG2 MAIN FUSE INJ FUSE EFI 5 FUSE IG2-MAIN RELAY STRG LOCK FUSE AM2 2 FUSE D/L FUSE MPX-B FUSE HAZ FUSE DOME FUSE METER FUSE A/BAG FUSE IG2 FUSE IA FROM IGNITION SWITCH (W/O SMART KEY SYSTEM) CERTIFICATION ECU (W/ SMART KEY SYSTEM) (DIAGRAM 3 OF 5) FROM A/F HTR FUSE (DIAGRAM 1 OF 5) ENGINE CONTROLS SYSTEM INTERIOR LIGHTS SYSTEM WARNING SYSTEMS WARNING SYSTEMS SUPPLEMENTAL RESTRAINTS SYSTEM ANTI-LOCK BRAKES SYSTEM SHIFT INTERLOCK SYSTEM COMPUTER DATA LINES SYSTEM EXTERIOR LIGHTS SYSTEM SHIFT INTERLOCK & ANTI-THEFT SYSTEMS FROM ENGINE ROOM R/B (DIAGRAM 1 OF 5) POWER WINDOWS SYSTEM INSTRUMENT CLUSTER SYSTEM INSTRUMENT CLUSTER & EXTERIOR LIGHTS SYSTEMS ENGINE CONTROLS, ANTI-LOCK BRAKES, SUPPLEMENTAL RESTRAINTS, WARNING, INSTRUMENT CLUSTER, CRUISE CONTROL, DOOR LOCKS, ANTI-THEFT, POWER TOPS, TRANSMISSIONS, EXTERIOR LIGHTS, STARTING/CHARGING, INTERIOR LIGHTS, AIR CONDITIONING, NAVIGATION, SOUND & HEADLIGHTS SYSTEMS TO J/C J4 (DIAGRAM 3 OF 5) TO CERTIFICATION ECU (DIAGRAM 3 OF 5) COMPUTER DATA LINES SYSTEM ANTI-THEFT SYSTEM MIRRORS SYSTEM
1 2 2 1 7.5A 10A 30A ASEL R S ACC 7.5A 5A E B 15A B E 15A J H Q E AGND F K C +B CUTB SSW2 SSW1 G IG1D ACCD ON START LOCK ACC START OFF AM1 OFF ACC LOCK ON OFF LOCK ACC START ON ST1 IG1 ACC START E LOCK OFF START ACC AM2 OFF LOCK ACC ON ON ST2 IG2 J/C J4 J/C J4 CERTIFICATION ECU J/C J9 ENGINE SWITCH DRIVER SIDE J/B MAIN BODY ECU J/C J8 J/C J8 F25 D8 F5 F1 2 21 C28 21 20 22 30 A42 A31 4 2 1 A1 5 2 2 1 A10 C27 2 7 11 12 6 3 1 2 IA5 1 1 5 10 4 C29 18 16 C27 C29 3 9 A28 A16 5 6 7 8 4 3 2 RED GRY BLU BLU GRY BLU RED BLU WHT/BLK YEL GRY RED LT GRN GRY GRY GRY GRY WHT/BLK VIO WHT/BLK WHT/BLK YEL WHT/BLK WHT/BLK WHT/BLK YEL YEL WHT BLK BLK BLK BLK GRY ORG PNK GRY GRY ORG BLK WHT RED BLK RED WHT BLK RED RED WHT BLU VIO RED WHT RED BLK GRN W/ SMART KEY SYSTEM W/O SMART KEY SYSTEM (W/O SMART KEY SYSTEM) W/O SMART KEY SYSTEM W/ SMART KEY SYSTEM (W/ SMART KEY SYSTEM) (12V) (12V) (UPPER LEFT END OF DASH) (UPPER LEFT END OF DASH) (LEFT END OF DASH) (RIGHT KICK PANEL) (UPPER LEFT CENTER OF DASH) (LEFT END OF DASH) (BEHIND RIGHT SIDE OF INSTRUMENT CLUSTER) (BEHIND RIGHT SIDE OF INSTRUMENT CLUSTER) (LEFT CENTER OF DASH) (LEFT CENTER OF DASH) IGNITION SWITCH ACC RELAY IG1 1 RELAY P/OUTLET RELAY SFT LOCK-ACC FUSE WASHER FUSE ECU-ACC FUSE WIPER FUSE P/OUTLET 1 FUSE IG1 1 FUSE P/OUTLET 2 FUSE FRONT POWER OUTLET SOCKET 2 (POWER POINT SOCKET ASSEMBLY) FRONT POWER OUTLET SOCKET 1 (POWER POINT SOCKET ASSEMBLY) IE IB IB FROM DRIVER SIDE J/B (DIAGRAM 4 OF 5) FROM ENGINE ROOM R/B (DIAGRAM 1 OF 5) AIR CONDITIONING SYSTEM FROM DRIVER SIDE J/B (DIAGRAM 2 OF 5) TO MOBILE WIRELESS CHARGER CRADLE ASSEMBLY (DIAGRAM 5 OF 5) STARTING/ CHARGING SYSTEM STARTING/ CHARGING SYSTEM FROM DRIVER SIDE J/B (DIAGRAM 2 OF 5) TO ENGINE ROOM R/B (DIAGRAM 2 OF 5) TO IG1 2 RELAY (DIAGRAM 4 OF 5) FROM IG1 2 RELAY (DIAGRAM 4 OF 5) TO IG1 2 RELAY (DIAGRAM 4 OF 5) TO J/C J10 (DIAGRAM 5 OF 5) SHIFT INTERLOCK SYSTEM EXTERIOR LIGHTS SYSTEM WIPER/WASHER SYSTEM
1 1 2 2 2 30A 20A GND1 10A K 7.5A 7.5A H IG 7.5A J 7.5A 20A F 20A 20A 7.5A 5A TRLY 7.5A 5A 7.5A 10A B N M L POWER RELAY DRIVER SIDE J/B MAIN BODY ECU J/C J5 J/C J12 A11 9 A9 11 H28 F32 D9 A49 F12 D7 H33 F19 F16 A50 A51 32 8 9 11 10 A52 5 8 4 10 11 3 7 6 1 2 K1 F20 A53 A5 A4 A14 A27 A55 14 F3 D14 D5 A44 D4 RED GRN WHT PNK (OR GRY) LT GRN LT BLU LT GRN BLK GRN LT GRN PNK GRY PNK ORG LT GRN LT GRN LT GRN LT GRN LT GRN GRN GRN GRN GRN GRN GRN GRN GRN GRN GRN BLK VIO PNK LT GRN BLU BLU PPL/WHT WHT YEL GRN GRN WHT/BLK LT GRN YEL W/O SMART KEY SYSTEM W/ JAM PROTECTION (LEFT END OF DASH) (LEFT KICK PANEL) (BEHIND LEFT SIDE OF INSTRUMENT CLUSTER) (RIGHT END OF DASH) IG1 3 RELAY CARGO LP FUSE S/HTR FUSE OBD FUSE DOOR F/R FUSE S/ROOF FUSE DOOR F/L FUSE POWER 2 FUSE BKUP LP 3 FUSE ECU-IG 3 FUSE IG1 2 RELAY TAIL RELAY AM1 FUSE IG1 2 FUSE ECU-IG 1 FUSE ECU-IG 2 FUSE 4WD FUSE PANEL FUSE TAIL FUSE IA INTERIOR LIGHTS SYSTEM POWER WINDOWS SYSTEM POWER WINDOWS SYSTEM EXTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEM POWER WINDOWS SYSTEM ANTI-LOCK BRAKES SYSTEM SEATS SYSTEM POWER TOPS SYSTEM FROM ENGINE ROOM J/B (DIAGRAM 1 OF 5) TO P/OUTLET RELAY (DIAGRAM 3 OF 5) FROM IG1 1 RELAY (DIAGRAM 3 OF 5) FROM ACC RELAY (DIAGRAM 3 OF 5) EXTERIOR LIGHTS SYSTEM EXTERIOR LIGHTS SYSTEM NAVIGATION SYSTEM MIRRORS & POWER TOPS SYSTEMS WARNING SYSTEMS CRUISE CONTROL SYSTEM TRANSMISSIONS SYSTEM SHIFT INTERLOCK SYSTEM AIR CONDITIONING SYSTEM NAVIGATION, AIR CONDITIONING & EXTERIOR LIGHTS SYSTEMS TO IGNITION SWITCH (DIAGRAM 3 OF 5) TO ENGINE ROOM R/B 2 (DIAGRAM 5 OF 5) TO J/C J5 (DIAGRAM 5 OF 5) EXTERIOR LIGHTS SYSTEM AIR CONDITIONING SYSTEM NAVIGATION & SOUND SYSTEMS COMPUTER DATA LINES SYSTEM INTERIOR LIGHTS SYSTEM TO MOBILE WIRELESS CHARGER CRADLE ASSEMBLY (DIAGRAM 5 OF 5)
1 1 2 2 A CLT C S ILL- ILL+ GND SW ACC TAIL DIS SDET ACC SW PGND N ACC2 ACC1 E ELS3 IND+ E M L IND IND- IG GND B AC2 EXCD RLY NSW AC1 IND SPD SW ENGINE ROOM R/B 2 J/C J5 J/C J11 J/C J13 & J14 ENGINE CONTROL MODULE J/C J12 J/C J10 J/C J11 19 16 13 22 2 1 13 21 J14 J13 1 3 2 1 2 3 BC2 BM1 6 7 BM1 4 21 20 14 18 15 17 12 15 16 22 20 19 13 10 9 12 8 11 18 14 12 17 6 7 8 9 10 2 1 4 5 3 5 BM1 1 ED1 1 BC1 IS4 6 3 1 5 E13 11 6 3 5 4 2 3 2 1 3 1 2 5 1 2 V9 V8 12 11 10 9 8 7 6 5 4 3 2 1 GRY PNK PNK PNK LT BLU LT BLU PNK LT BLU LT BLU LT BLU BLK LT BLU PNK WHT BLU WHT/BLK GRN RED YEL PNK VIO PNK PNK PNK PNK PNK GRY GRY GRY GRY WHT/BLK WHT/BLK WHT/BLK WHT/BLK WHT/BLK GRY GRY GRN ORG WHT/BLK BLU GRY GRY WHT/BLK GRN YEL GRY WHT/BLK BLU BLK BLU BLK PNK WHT BLU WHT/BLK WHT/BLK BLK VIO GRN PNK RED BLU BLU YEL BLU BLU BLK PNK WHT/BLK BLU WHT BLK YEL BLU RED VIO GRN (W/ POWER OUTLET (120V)) (3.5L) W/ SMART KEY SYSTEM W/O SMART KEY SYSTEM (ATTACHED TO REAR OF ENGINE ROOM J/B/R/B ASSEMBLY) (BEHIND LEFT SIDE OF INSTRUMENT CLUSTER) (RIGHT CENTER OF DASH) (UNDER REAR OF CENTER CONSOLE) (UNDER REAR OF CENTER CONSOLE) (UNDER FRONT PASSENGER'S SEAT) (RIGHT END OF DASH) (RIGHT END OF DASH) (RIGHT CENTER OF DASH) (RIGHT CENTER OF DASH) (RIGHT KICK PANEL) INV RELAY MAIN SWITCH (POWER OUTLET AC 120V) VOLTAGE INVERTER REAR POWER POINT SOCKET ASSEMBLY MOBILE WIRELESS CHARGER CRADLE ASSEMBLY MOBILE WIRELESS CHARGER SWITCH BC BC IE FROM DRIVER SIDE J/B (DIAGRAM 4 OF 5) FROM ENGINE ROOM R/B (DIAGRAM 1 OF 5) FROM DRIVER SIDE J/B (DIAGRAM 4 OF 5) SEATS SYSTEM NAVIGATION SYSTEM DEFOGGER SYSTEM STARTING/ CHARGING SYSTEM NAVIGATION SYSTEM INSTRUMENT CLUSTER SYSTEM STARTING/CHARGING SYSTEM FROM DRIVER SIDE J/B (DIAGRAM 3 OF 5) CRUISE CONTROL SYSTEM FROM J/C J5 (DIAGRAM 4 OF 5) INTERIOR LIGHTS SYSTEM FROM CERTIFICATION ECU (DIAGRAM 3 OF 5) NAVIGATION & SOUND SYSTEMS MIRRORS SYSTEM EXTERIOR LIGHTS SYSTEM COMPUTER DATA LINES SYSTEMS