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SELF-DIAGNOSIS FUNCTION

F-78prose procedure
Continued from F-77

PREPARATION

SST

MALFUNCTION CODE NUMBER

Inspection procedure

  1. 1
    Connect the SSTs to the diagnosis connector and a ground.
    Photo of engine bay showing the diagnosis connector with the two SSTs (49 H018 9A1 Self-Diagnosis Checker and 49 B019 9A0 System Selector) connected. Callouts identify SELECT SW A, SYSTEM SELECT 1, TEST SW, and SELF TEST positions.
    05U0FX-068
  2. 2
    Set the select switch to position A.
  3. 3
    Set the System Selector to position 1 and SELF TEST as shown.
    Close-up of the System Selector showing the rotary SYSTEM SELECT switch (positions 1–8) set to position 1, with the TEST SW set to SELF TEST.
    05U0FX-069
  4. 4
    Turn the ignition switch ON.
  5. 5
    Verify that 88 flashes on the digital display and that the buzzer sounds for 3 sec. after turning the ignition switch ON.
    Close-up of the Self-Diagnosis Checker showing the two-digit digital display reading '88' with the MONITOR lamp and SELECT SW controls visible. Made in Japan label visible at bottom.
    05U0FX-070
  6. 6
    If 88 does not flash, check the main relay, (Refer to page F-139.) power supply circuit, and check connector wiring.
  7. 7
    If 88 flashes and the buzzer continues for more than 20 sec., check for a short circuit between the engine control unit terminal 1F and the diagnosis connector. Replace the engine control unit if necessary and perform Steps 3 and 4 again.
  8. 8
    Note any code numbers and check for the causes by referring to the check sequences shown on pages F-81 to F-87. Repair as necessary.
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See also

T-113AUDIO — Anti-theft SystemF-139CONTROL SYSTEMF-81SELF-DIAGNOSIS FUNCTIONF-87SELF-DIAGNOSIS FUNCTIONF-88SELF-DIAGNOSIS FUNCTION

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