Toyota·Sienna·2018 Toyota Sienna·Wiring
Wiring diagram

2018 Toyota Sienna — power distribution

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Power distribution

A 20A 7.5A 20A 25A 10A 250A V 7.5A C SS1 SS2 GND E D SSW1 SSW2 IG2D ACCD IG1D AM21 25A 30A 20A A B 15A 50A 10A 30A 20A 7.5A AM22 5A 20A 60A 7.5A 10A 30A ENGINE ROOM R/B ENGINE ROOM J/B ENGINE ROOM R/B J/C A49 POWER MANAGEMENT CONTROL ECU ENGINE SWITCH J/C D98 1 2 5 8 1G 5 7 2 D89 18 1 19 20 8 D89 A35 17 2 2 1 5 3 AD6 11 BLK RED RED WHT RED VIO RED RED RED VIO PNK PNK WHT/BLK BLK BLK BLK WHT/BLK WHT/BLK BLU BLK BLU PNK YEL RED BLU BLK RED RED WHT/BLK RED (OR VIO) LT BLU LT BLU WHT BLK/RED WHT LT GRN BLU BLK/RED BLU LT BLU GRN BLK RED PNK RED BLK BLK W/ SMART KEY SYSTEM W/O SMART KEY SYSTEM W/O SMART KEY SYSTEM W/ SMART KEY SYSTEM (W/ SMART KEY SYSTEM) A2 D7 LED DRL FUSE AMP 2 FUSE STRG LOCK 2 FUSE ECU-B 2 FUSE DRL FUSE ST FUSE VSC 1 FUSE DCM FUSE AMP 1 FUSE VSC 2 FUSE EPS FUSE SMART FUSE AM2 2 FUSE FUSIBLE LINK BLOCK ASSEMBLY ETCS FUSE IG2-MAIN FUSE S-HORN FUSE HORN FUSE A/F FUSE EFI 2 FUSE D INJ FUSE HAZ FUSE IG2 RELAY MAIN FUSE BATTERY (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) (LOWER REAR OF ENGINE) (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) (LOWER RIGHT END OF DASH) (UNDER LEFT FRONT OF CENTER CONSOLE) (BEHIND INSTRUMENT CLUSTER) TO S-HORN FUSE (DIAGRAM 1 OF 5) HEADLIGHTS SYSTEM NAVIGATION & SOUND SYSTEMS NAVIGATION, SOUND, POWER WINDOWS, AIR CONDITIONING & DOOR LOCKS SYSTEMS NAVIGATION & SOUND SYSTEMS HEADLIGHTS SYSTEM NAVIGATION SYSTEM SHIFT INTERLOCK SYSTEM ELECTRONIC POWER STEERING SYSTEM ANTI-THEFT & DOOR LOCKS SYSTEMS STARTING/ CHARGING SYSTEM ANTI-LOCK BRAKES SYSTEM FROM SMART FUSE (DIAGRAM 1 OF 5) TO AM2 FUSE (DIAGRAM 2 OF 5) EXTERIOR LIGHTS & INSTRUMENT CLUSTER SYSTEMS ENGINE CONTROLS SYSTEM ENGINE CONTROLS SYSTEM STARTING/ CHARGING SYSTEM DOOR LOCKS & ANTI-THEFT SYSTEMS HORNS SYSTEM TO INSTRUMENT PANEL J/B (DIAGRAM 3 OF 5) ENGINE CONTROLS SYSTEM TO INSTRUMENT PANEL J/B (DIAGRAM 4 OF 5) FROM INSTRUMENT PANEL J/B (DIAGRAM 3 OF 5) TO INSTRUMENT PANEL J/B (DIAGRAM 4 OF 5)
L 15A 10A 30A 30A 40A 30A 30A 50A 10A 15A 10A 7.5A J 140A 7.5A H 40A BECU G F ACC4 ACC3 ACC2 ACC1 7.5A 20A IG GND AC2 AC1 30A 40A 30A 20A 30A 50A H 80A 180 7.5A B 10A 30A 25A 20A ENGINE ROOM R/B ENGINE ROOM J/B J/C K44 J/C A50 MAIN BODY ECU J/C D172 J/C D168 & L36 INSTRUMENT PANEL J/B ENGINE ROOM R/B R/B 3 J/C L39 2 21 1 3 2 5 3 1 DL3 13 21 20 19 18 22 H23 11 14 D168 16 19 D168 L36 8 9 12 10 7 20 LQ1 7 1I 1H 12 13 15 2 1 LA1 6 30 1 DP2 DL3 1 2 7 3 1 4 6 5 4 2 1 4 1 3 2 4 1 3 17 18 D14 F40 5 1 3 2 LA1 5 4 6 8 7 VIO BLU BLU BLK VIO VIO VIO BLK PNK VIO BLK GRN GRN BLU YEL BLU BLK RED BLK RED RED WHT/BLK WHT/BLK WHT BLU LT BLU LT BLU LT BLU LT BLU VIO VIO WHT BLK BLK RED BLK BLK WHT BLU BLK BLU BLU BLU BLU BLU BLK BLK WHT WHT LT GRN BLK VIO VIO BLK WHT BLK WHT WHT BLK WHT BLK WHT WHT BLK WHT WHT BLU BLK BLU BLK BLK WHT RED BLK PNK PNK BLK BLK WHT/BLK WHT RED BLK/BLU BLU WHT RED VIO WHT BLU RED L3 A3 ALT FUSE SHORT PIN AM2/ STRG LOCK FUSE EFI MAIN FUSE H-LP MAIN FUSE DOME FUSE RAD 1 FUSE ECU-B FUSE RSE FUSE J/B-ALT FUSE FOLD SEAT FUSE P/OUTLET MAIN FUSE A/A SEAT FUSE A/C RR FUSE PSD LH FUSE PSD RH FUSE DEF FUSE PTC HTR 1 FUSE PTC HTR 3 FUSE PTC HTR 2 FUSE A/C MG FUSE PBD FUSE DEICER FUSE FOG FR FUSE INV FUSE HTR FUSE MIR HTR FUSE MIRROR FUSE FAN FUSE VOLTAGE INVERTER ASSEMBLY INV RELAY FUSE BLOCK WELCAB FUSE WELCAB FUSE REAR POWER OUTLET SOCKET ASSEMBLY FRONT POWER OUTLET SOCKET ASSEMBLY (LEFT SIDE OF ENGINE COMPT) (LEFT SIDE OF ENGINE COMPT) (BEHIND LEFT QUARTERPANEL) (LEFT SIDE OF ENGINE COMPT) (BEHIND INSTRUMENT CLUSTER) (RIGHT KICK PANEL) (LEFT END OF DASH) (LEFT SIDE OF ENGINE COMPT) (RIGHT "C" PILLAR) (RIGHT SIDE OF ENGINE COMPT) (BEHIND RIGHT QUARTERPANEL) (BEHIND RIGHT QUARTERPANEL) (UNDER REAR SEAT 1) (RIGHT FRONT OF ENGINE COMPT) FROM IG2-MAIN FUSE (DIAGRAM 1 OF 5) TO HTR FUSE (DIAGRAM 2 OF 5) ENGINE CONTROLS SYSTEM INTERIOR LIGHTS SYSTEM STARTING/ CHARGING SYSTEM TO IGNITION OR STARTER SWITCH ASSEMBLY (DIAGRAM 3 OF 5) HEADLIGHTS SYSTEM MEMORY SYSTEMS SEATS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM TO INSTRUMENT PANEL J/B (DIAGRAM 4 OF 5) NAVIGATION & SOUND SYSTEMS SUPPLEMENTAL RESTRAINTS SYSTEM TRUNK, TAILGATE, FUEL DOORS SYSTEM MEMORY SYSTEMS DOOR LOCKS & ANTI-THEFT SYSTEMS ANTI-THEFT SYSTEM COMPUTER DATA LINES SYSTEM INSTRUMENT CLUSTER SYSTEM ANTI-LOCK BRAKES & ELECTRONIC POWER STEERING SYSTEMS NAVIGATION SYSTEM MIRRORS SYSTEM MEMORY SYSTEMS FROM ALT FUSE (DIAGRAM 2 OF 5) TRUNK, TAILGATE, FUEL DOORS SYSTEM HEADLIGHTS SYSTEM COOLING FANS SYSTEM MEMORY SYSTEMS AIR CONDITIONING SYSTEM DEFOGGER SYSTEM AIR CONDITIONING SYSTEM SEATS SYSTEM DEFOGGER SYSTEM AIR CONDITIONING SYSTEM TO R/B 3 (DIAGRAM 4 OF 5) TRUNK, TAILGATE, FUEL DOORS SYSTEM SEATS SYSTEM FROM INSTRUMENT PANEL J/B (DIAGRAM 5 OF 5) SEATS SYSTEM
7.5A V C 7.5A ALTB 30A N M 30A 20A 20A 30A 15A K K 20A 7.5A 10A W F ON START IG1 LOCK ACC OFF AM1 ON OFF START ACC ACC LOCK START ON AM2 ACC LOCK OFF IG2 START ON ACC LOCK OFF ST2 7.5A ENGINE ROOM R/B INSTRUMENT PANEL J/B INSTRUMENT PANEL J/B BK D/L RELAY D/L RELAY D/UL RELAY D D/UL RELAY MAIN BODY ECU H31 A8 A34 A35 F31 F32 F6 A55 31 AD5 4 H13 2 7 4 3 6 8 A6 A4 D9 A5 H5 H26 A38 AD6 20 11 VIO BLK VIO BLK BLK RED BLK RED (OR RED) BLK GRY VIO RED RED GRN VIO GRY ORG WHT YEL WHT BLU RED RED BLK RED RED LT GRN (W/O SMART KEY SYSTEM) W/O SMART KEY SYSTEM W/ SMART KEY SYSTEM IGNITION OR STARTER SWITCH ASSEMBLY ST 2 FUSE IG2 FUSE GAUGE 2 FUSE P/SEAT FL FUSE AM1 FUSE P/W RL FUSE P/W FR FUSE S/ROOF FUSE P/SEAT FR FUSE D/L FUSE P/W RR FUSE 4WD FUSE (LEFT SIDE OF ENGINE COMPT) (LEFT END OF DASH) (LEFT END OF DASH) FROM INSTRUMENT PANEL J/B (DIAGRAM 3 OF 5) FROM ENGINE ROOM R/B (DIAGRAM 2 OF 5) FROM ENGINE ROOM R/B (DIAGRAM 1 OF 5) TO INSTRUMENT PANEL J/B (DIAGRAM 4 OF 5) TO INSTRUMENT PANEL J/B (DIAGRAM 4 OF 5) STARTING/ CHARGING SYSTEM AIR CONDITIONING, TRANSMISSIONS, STARTING/CHARGING, COOLING FANS, CRUISE CONTROL, ELECTRONIC POWER STEERING, WIPER/WASHER, SUPPLEMENTAL RESTRAINTS, INSTRUMENT CLUSTER, ANTI-LOCK BRAKES, ENGINE CONTROLS, DOOR LOCKS, WARNING, COMPUTER DATA LINES, ANTI-THEFT, INTERIOR LIGHTS, EXTERIOR LIGHTS, HEADLIGHTS, SOUND, NAVIGATION & SEATS SYSTEMS EXTERIOR LIGHTS, ENGINE CONTROLS & TRANSMISSIONS SYSTEMS SHIFT INTERLOCK SYSTEM ANTI-THEFT & DOOR LOCKS SYSTEMS SUPPLEMENTAL RESTRAINTS SYSTEM TO ENGINE ROOM R/B (DIAGRAM 1 OF 5) FROM P/W FL FUSE (DIAGRAM 5 OF 5) POWER TOPS SYSTEM SEATS SYSTEM POWER WINDOWS SYSTEM MEMORY & SEATS SYSTEMS TRANSMISSIONS SYSTEM POWER WINDOWS SYSTEM TO IGNITION OR STARTER SWITCH ASSEMBLY (DIAGRAM 3 OF 5)
ACC2 E1 ACC2 E2 E1 ACC1 7.5A 7.5A L 15A R Q P M N D E B E B E 10A 7.5A 7.5A 15A G IG 15A 10A 10A 10A TRLY ACC B E INSTRUMENT PANEL J/B MAIN BODY ECU MAIN BODY ECU J/C D171 R/B 3 J/C D103 J/C K29 9 AD6 DP2 1 4 DP2 5 1 2 1 2 6 DA7 12 4 OK1 8 11 7 2 1 KA3 10 OK1 1 5 1 3 2 19 18 21 20 22 17 D32 F18 F34 A2 H30 F19 F39 1 DL6 2 1 D8 D7 2 1 A23 A16 A17 K1 32 D5 A10 D17 14 29 A18 H21 D40 A42 H35 H20 A40 F26 A39 2 1 GRN WHT/ BLK WHT/BLK ORG ORG RED BLK BLK WHT/ ORG ORG WHT/ BLK BLK WHT/ WHT/ BLK VIO VIO RED RED RED RED VIO ORG PNK BLU BLU WHT/BLK PNK BLU ORG LT GRN PNK PNK BLU BLU GRN BLU YEL BLU BLU YEL YEL BLU YEL BLU GRY BLK RED BLK WHT/BLK WHT/BLK VIO BLK WHT/BLK GRY YEL BLU WHT WHT/BLK GRN GRY GRN GRN GRN GRN GRN GRN GRN WHT/BLK BLU PNK W/O SMART KEY SYSTEM W/ SMART KEY SYSTEM D2 D3 L4 D7 A3 D7 K3 ACC RELAY P/POINT RELAY IG1 1 RELAY TAIL RELAY ECU- ACC FUSE ECU-IG 1 FUSE PANEL FUSE P/OUTLET FUSE TAIL FUSE GAUGE 1 FUSE RAD 2 FUSE CIG FUSE STRG HTR FUSE FRONT POWER POINT SOCKET ASSEMBLY REAR POWER POINT SOCKET ASSEMBLY CENTER POWER POINT SOCKET ASSEMBLY ACC 2 RELAY P/OUTLET 2 FUSE P/OUTLET 1 FUSE REAR SIDE USB CHANGER SOCKET LOW SIDE USB CHANGER SOCKET CENTER USB CHANGER SOCKET (LEFT END OF DASH) (BEHIND INSTRUMENT CLUSTER) (UPPER LEFT SIDE DASH) (RIGHT KICK PANEL) (RIGHT "D" PILLAR) (UNDER LEFT FRONT OF CENTER CONSOLE) (RIGHT SIDE OF ENGINE COMPT) (UPPER CENTER OF DASH) (LEFT "D" PILLAR) (RIGHT FRONT OF ENGINE COMPT) (LEFT "D" PILLAR) (UNDER LEFT FRONT OF CENTER CONSOLE) FROM IGNITION OR STARTER SWITCH ASSEMBLY (DIAGRAM 3 OF 5) FROM POWER MANAGEMENT CONTROL ECU (DIAGRAM 1 OF 5) FROM ENGINE ROOM J/B (DIAGRAM 2 OF 5) FROM IGNITION OR STARTER SWITCH ASSEMBLY (DIAGRAM 3 OF 5) FROM POWER MANAGEMENT CONTROL ECU (DIAGRAM 1 OF 5) TO IG1 2 RELAY (DIAGRAM 5 OF 5) FROM IG1 2 RELAY (DIAGRAM 5 OF 5) EXTERIOR LIGHTS SYSTEM INTERIOR LIGHTS SYSTEM SEATS SYSTEM WIPER/ WASHER SYSTEM ANTI-LOCK BRAKES SYSTEM TRANSMISSIONS SYSTEM NAVIGATION & SOUND SYSTEMS ANTI-LOCK BRAKES & EXTERIOR LIGHTS SYSTEMS HEADLIGHTS SYSTEM ENGINE CONTROLS, CRUISE CONTROL, EXTERIOR LIGHTS, TRUNK, TAILGATE, FUEL DOORS, SEATS, NAVIGATION & TRANSMISSIONS SYSTEMS NAVIGATION & SOUND SYSTEMS SHIFT INTERLOCK SYSTEM COMPUTER DATA LINES SYSTEM MIRRORS SYSTEM FROM ENGINE ROOM R/B (DIAGRAM 2 OF 5)
GND2 7.5A J 20A 15A 20A S T U U S T R Q P 20A 10A W 10A 30A 7.5A 10A 10A PWS 15A 15A 15A 7.5A INSTRUMENT PANEL J/B J/C K44 J/C D170 J/C D175 INSTRUMENT PANEL J/B MAIN BODY ECU 6 D14 3 D6 7 9 10 6 11 8 H32 F29 F28 2 3 5 1 10 9 7 8 8 2 3 F30 F2 H17 F3 A13 H28 H29 F37 F21 A12 F1 A43 A11 A50 A51 F12 A53 A37 7 4 6 5 2 D13 1 A52 A31 A32 A14 A1 H1 WHT/BLK WHT/BLK BLK BLK BLK BLK BLU BLK BLK BLU BLU BLU BLU LT BLU BLU BLU BLU BLU RED BLU BLU BLU BLU BLU BLU BLU LT GRN BLU GRN WHT WHT WHT WHT BLU BLU BLU PNK BLK BLK YEL RED BLU BLU BLU BLK VIO VIO GRN RED GRY GRY IG1 3 RELAY IG1 2 RELAY EPS-IG FUSE WIP FUSE WASHER RR FUSE ECU-IG 2 FUSE ECU-IG 3 FUSE WASHER FUSE HTR-IG FUSE SHIFT LOCK FUSE WIP RR FUSE P/W MAIN RELAY IG1 4 RELAY OBD FUSE STOP FUSE P/W FL FUSE P/VENT FUSE S-HTR FL FUSE S-HTR FR FUSE (LEFT END OF DASH) (BEHIND LEFT QUARTERPANEL) (BEHIND INSTRUMENT CLUSTER) (UPPER CENTER OF DASH) (LEFT END OF DASH) FROM IG1 1 RELAY (DIAGRAM 4 OF 5) TO IG1 4 RELAY (DIAGRAM 5 OF 5) FROM IG1 4 RELAY (DIAGRAM 5 OF 5) TO IG1 1 RELAY (DIAGRAM 4 OF 5) ELECTRONIC POWER STEERING SYSTEM AIR CONDITIONING & DEFOGGER SYSTEMS CRUISE CONTROL SYSTEM SHIFT INTERLOCK SYSTEM WIPER/ WASHER SYSTEM TO R/B 3 (DIAGRAM 2 OF 5) CRUISE CONTROL & NAVIGATION SYSTEMS WIPER/ WASHER SYSTEM WARNING, AIR CONDITIONING & COOLING FANS SYSTEMS WIPER/ WASHER SYSTEM ENGINE CONTROLS & TRANSMISSIONS SYSTEMS MIRRORS & NAVIGATION SYSTEMS SEATS SYSTEM SEATS SYSTEM WIPER/WASHER SYSTEM WARNING SYSTEMS NAVIGATION SYSTEM NAVIGATION SYSTEM MEMORY SYSTEMS SEATS, MEMORY & NAVIGATION SYSTEMS TRUNK, TAILGATE, FUEL DOORS SYSTEM NAVIGATION SYSTEM ANTI-LOCK BRAKES & ELECTRONIC POWER STEERING SYSTEMS NAVIGATION SYSTEM NAVIGATION & SOUND SYSTEMS COMPUTER DATA LINES SYSTEM TO AM1 FUSE (DIAGRAM 3 OF 5) FROM IG1 3 RELAY (DIAGRAM 5 OF 5) TO IG1 3 RELAY (DIAGRAM 5 OF 5) COMPUTER DATA LINES SYSTEM SEATS SYSTEM POWER WINDOWS SYSTEM POWER WINDOWS SYSTEM POWER TOPS SYSTEM SEATS SYSTEM TRANSMISSIONS, EXTERIOR LIGHTS, ENGINE CONTROLS, SHIFT INTERLOCK, ANTI-LOCK BRAKES & CRUISE CONTROL SYSTEMS