TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
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BE/Body Electrical System74 / 121
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BODY ELECTRICAL SYSTEM - Cruise Control System — MK2 Supra Body Electrical System, page 74
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CONTINUED FROM PREVIOUS PAGE Yes INSPECT SET/COAST SWITCH CIRCUIT Is there continuity between terminal 4 and body ground with set/coast switch turned on? No • Open circuit in wire harness between terminal 4 of computer and terminal 30 of control switch. • Inspect control switch. Yes Is there continuity between terminal 4 and body ground with set/coast switch turned off? Yes • Short circuit in wire harness between terminal 4 of computer and terminal 30 of control switch. • Inspect control switch. No INSPECT ACCEL/RESUME SWITCH CIRCUIT Is there continuity between terminal 13 and body ground with accel/resume switch turned on? No • Open circuit in wire harness between terminal 13 of computer and terminal 28 of control switch. • Inspect control switch. Yes Is there continuity between terminal 13 and body ground with accel/resume switch turned off? Yes • Short circuit in wire harness between terminal 13 of computer and terminal 28 of control switch. • Inspect control switch. No INSPECT CONTROL VALVE CIRCUIT Is resistance value about 30 Ω between terminals 2 and 3? No • Open or short circuit in wire harness between terminal 3 of computer and terminal 2 of actuator. • Open circuit in wire harness between terminal 1 of actuator and terminal 2 of computer. • Inspect actuator. Yes INSPECT RELEASE VALVE CIRCUIT Is resistance value about 68 Ω between terminals 1 and 2 with brake pedal returned? No • Open or short circuit in wire harness between terminal 1 of computer and terminal 3 of actuator. • Open circuit in wire harness between terminal 1 of actuator and terminal 2 of computer. • Inspect stop light switch. Yes CONTINUED ON NEXT PAGE