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STEERING SYSTEM
[T3Bo] 4-3
3 . Troubleshooting for Self-diagnosis System - Only for Electroni-
cally Controlled Power Steering
A: HOW TO USE DIAGNOSIS CONNECTOR
I
/
-
Diagnosis terminal
B36
i :, .z` .
"'
Diagnosis
connector
6 6
7
1
I
1 `,
C4-562
Fig. 174
B: TROUBLESHOOTING PROCEDURE
1
Basic inspection
Read memory
Trouble code appears.
1) Turn ignition switch "OFF."
2) Connect one of two DIAG. terminals to diagnosis
connector mode* terminal No. 5, 6 or 7.
3) Turn ignition switch "ON ." Read trouble code.
4) Disconnect male terminal from diagnosis connector
terminal.
* Power steering mode terminals :
No. 5 - TEST
No. 6 - READ MEMORY
No. 7 - DIAGNOSIS
No trouble code appears.
D-check
Trouble code appears .
Check as per trouble code .
D-check
Trouble code appears .
Clear memory
Check as per symptom. *1
Verification test
*2
Trouble code appears .
NOT O .K.
End
*1 : Conduct normal power steering troubleshooting procedure . If no problems exist, replace ECU (Electronic Control Unit) .
*2 : In verification test, conduct D (Dealer's) check and basic inspection first, then actual drive test, to ensure that no problems exist.
a. Before disconnecting ECU connector, turn ignition switch "OFF".
b. Before removing ECU, disconnect battery cables .
No trouble code appears .
79
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Table of Contents
Troubleshooting
