TSRM/MK3 Supra/Community Fixes
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Community Fixes

Common problems grouped from confirmed-fix threads on SupraForums — 572 issues across MKIII threads

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Electrical7 threads

fog lights not staying on with high beams

HID kit wiring problems. HELPheadlight illumination question; electrical guys post up.HID conversion problem.+ 4 more threads
Electrical7 threads

unknown ignition wire color pairing

help wire colorGauges are outGreddy Gauge Wiring+ 4 more threads
Electrical7 threads

blower motor only works on high setting

Lo setting of ACvents not workin blower motor not..How Did You Get Your Heater Blower Out?+ 4 more threads
Electrical6 threads

connector pin length mismatch

Vpc87 7M-GE -> 91 7M-GTE wiring painsBosch ev6 connector pin?+ 3 more threads
Electrical6 threads

theft deterrent system failure to arm

bypass theft deterrent computerValet switch, alarmtheft deterrent system+ 3 more threads
Electrical6 threads

cracked electrical connector at base

SAFC2 Installhelp please hooked up diagnosis wrongFinally got it working.......I am soo dam happy..+ 3 more threads
Electrical6 threads

electrical short circuit

Electrical Nightmare !!!!! help from an Electrical guru needed.Need help BHG repairFuel Pump Circuit+ 3 more threads
Electrical6 threads

wiring harness issues from aftermarket additions

Need advice on installing aftermarket CD playerextra wire for aftermarket cd player install??86.5 Stereo Harnest ISSUE+ 3 more threads
Electrical6 threads

flasher unit wiring pinout incorrect

Notes on my 90TFlashers and turn signals not workingBlinker Staying solid?+ 3 more threads
Electrical6 threads

power loss at dimmer switch socket

Power ProblemsNo power at dimmer switch female sideDash Lights Not Working After Boost Gauge Install: Troubleshooting Tips?+ 3 more threads
Electrical6 threads

cut wires in driver side wheel well

steering hub adapter??? PLEASE HELPMKIV steering wheel fit a MKIII with airbag?NOOOO!!!! Hopefully it's only minor...+ 3 more threads
Electrical6 threads

power mirror control failure

Side mirror connector P/NPassenger side mirrorRHD MK3 GT power mirror control HELP+ 3 more threads
Electrical5 threads

part number for electric seat tow plastics

removal of drivers seat, help!help me finding this partAnybody Know How To Hotwire A Power Seat?+ 2 more threads
Electrical5 threads

no power to vehicle after prolonged inactivity

Need Answer Quick!!! 3 Hours!!!no power, need helpAnyone else having problems due to the cold weather?+ 2 more threads
Electrical5 threads

power cut-out after GTE swap

HELP messed something upCar shut off at 40 MPH... Need electrical help.Problems after GTE swap, power cut-out+ 2 more threads
Electrical5 threads

question about electrical components

a/f and vacuum issuesEGT guages urgent question...simple electrical question+ 2 more threads
Electrical5 threads

firewall modification for transmission access

Anyone cut the firewall to get to the upper tranny bolts?MK3 wiring help!Amp power cord install in MKIII+ 2 more threads
Electrical5 threads

unknown function yellow wiring harness

what are these wires?Why is this plug different than the others?Fuse box plugs+ 2 more threads
Electrical5 threads

auxiliary fan failure to engage

AFC wont turn offAuxiliary fans will not engageA/C not turning fans on+ 2 more threads
Electrical5 threads

antenna motor replacement

Where Can I Buy A 7MGTE?1989 Supra Antenna Motor/Mast Replacemnet?wtf???? window help+ 2 more threads