With Self-Diagnosis Checker & System Selector Tool
INSPECTION PROCEDURESelf-diagnosis checker
1. Connect the SST (Self-Diagnosis Checker) to the data link connector.
2. Set switch select to position 1.
3. Set the test switch to SELF TEST.
4. Connect the SST to the System Selector and a ground.
5. Set the select switch to position A.
6. Turn the ignition switch ON.
7. Verify that "88" flashes on the digital display and the buzzer sounds for 3 sec. after turning the ignition switch ON.
8. If "88" does not flash, check the main relay, power supply circuit, and data link connector wiring.
9. If 88 flashes and the buzzer sounds continuously for more than 20 sec., check for a short circuit between the ECM terminal 1F and the data link connector. Replace the ECM if necessary and perform Steps 3 and 7 again.
10. Note any code numbers and check for the causes by referring to the check sequences shown. Repair as necessary.
11. After repairs, cancel the code numbers by performing the "After-repair procedure" in "How to Clear Diagnostic Trouble Codes".
Clearing Diagnostic Trouble Codes
PRINCIPLE OF CODE CYCLE
Diagnostic trouble codes are determined as shown below.
1. Code cycle break
The time between diagnostic trouble code cycles is 4.0 seconds (the time the buzzer is off).
2. Second digit of diagnostic trouble code (ones position)
The digit in the ones position of the diagnostic trouble code represents the number of times the buzzer sounds 0.4 second during one cycle.
3. First digit of diagnostic trouble code (tens position)
The digit in the tens position of the diagnostic trouble code represents the number of times the buzzer is on 1.2 seconds during one cycle.
The buzzer is off for 1.6 seconds between the long and short pulses.