TSRM/MK4 Supra/Repair Manual
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BE/Body Electrical Systems — Diagnostic Trouble Code Chart, page 168

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p.169
Diagnostic Trouble Code Chart — MK4 Supra Body Electrical Systems, page 168
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Page text (OCR transcript)
BE–168
BODY ELECTRICAL SYSTEM – CRUISE CONTROL SYSTEM

J/B No.1
ECU-B
N08843

Diagnostic Trouble Code Clearance
1. After completing repairs the diagnostic trouble code retained in memory can be cleared by removing the ECU–B fuse for 10 seconds or more, with the ignition switch off.
2. Check that the normal code is displayed after connecting the fuse.

DIAGNOSTIC TROUBLE CODE CHART
If a malfunction code is displayed during the diagnostic trouble code check, check the circuit listed for that code in the table below and proceed to the appropriate page.

Code No. | Circuit Inspection | Page
11, 14 | • Actuator Motor Circuit. | BE–171
12 | • Actuator Magnet Clutch Circuit. | BE–172
13 | • Actuator Motor Circuit
• Actuator Position Sensor Circuit | BE–171
BE–175
14 | • Actuator Motor Circuit
• Actuator Position Sensor Circuit | BE–171
BE–175
21 | • Speed Sensor Circuit | BE–177
23 | • Speed Sensor Circuit | BE–177
32, 34 | • Control Switch Circuit. (Cruise Control Switch) | BE–197

HINT:
1. If the instruction "Proceed to next circuit inspection shown on matrix chart" is given in the flow chart for each circuit, proceed to the circuit with the next highest number in the table to continue check.
2. If the trouble still reappears even though there are no abnormalities in any of the other circuits, then check or replace the cruise control ECU as the last step.