Symptom Troubleshooting - Inspection Procedure No. 1
In this manual: Symptom Troubleshooting - Inspection Procedure No. 1
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| Cannot communicate with tester | Possible Cause |
| If communication between the HI-SCAN (Pro) tester and the A/T control unit is not possible, the diagnostic line may be faulty or the A/T control unit may not be operating. | Diagnostic line malfunction, A/T control module power supply circuit malfunction, A/T control module ground circuit malfunction, A/T control module malfunction |


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