TSRM/MK4 Supra/Repair Manual
Repair ManualWiring Diagrams
p.086
BE/Body Electrical Systems87 / 203
p.088
HOW TO USE DIAGNOSTIC CHART — MK4 Supra Body Electrical Systems, page 87
100%
BE–87 BODY ELECTRICAL SYSTEM – AUDIO SYSTEM Problem | No. Noise | Noise produced by vibration or shock while driving. | 30 | Noise produced when engine starts. | 31 Antenna | Antenna–related. | 32 ANTI–THEFT SYSTEM | Troubleshooting for ANTI–THEFT SYSTEM | 33 HOW TO USE DIAGNOSTIC CHART 1 | Radio | NO POWER COMING IN R: w/o Tape Player S: Radio-Tape Player (Separate) U: Radio-Tape Player Unit w/o Power Amplifier P: w/ Power Amplifier S U P Is tape player operating Yes S U P R NO Is ACC applied to radio? NO Tape player faulty. Yes Check if GND (wire harness side) NG to radio is OK. OK Radio faulty. Radio assembly faulty. R S U P Check if CIG & RAD fuse is OK. NG Replace fuse. OK U R S P R Is ACC applied to radio? S Is ACC applied to tape player? NO ACC wire harness faulty? P Is ACC applied to power amplifier? Yes (1) Audio system type and symbol used. HINT: Confirm the applicable type of audio system. (2) Symbol for type of audio system the question applies to. HINT: If the audio system type is not applicable, proceed to next question below. (3) Junction without black circle. HINT: Proceed to next question below. (4) Junction with black circle. HINT: Proceed to question for applicable audio system type. (5) HINT: Select question for applicable audio system type.