How To Proceed With Troubleshooting

WARNING: This page is about a different car, the 2004 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.

Vehicle Brought to Workshop
1. Go to next step
Customer Problem Analysis (See CUSTOMER PROBLEM ANALYSIS CHECK )
1. Go to next step
Check and Clear DTCs and Freeze Frame Data (See PRE-CHECK )
1. Go to next step
Problem Symptom Confirmation
1. Symptom does not occur: Go to step 5
2. Symptom occurs: Go to step 6
Symptom Simulation (See ELECTRONIC CIRCUIT INSPECTION PROCEDURE )
DTC Check (See PRE-CHECK )
1. There is no output: Go to step 7
2. There is output: Go to step 8
Problem Symptoms Table (See PROBLEM SYMPTOMS TABLE )
1. Check for fluid leakage and Go to step 10
DTC Chart (See DIAGNOSTIC TROUBLE CODE CHART )
Circuit Inspection (See CIRCUIT DESCRIPTION or TS TERMINAL CIRCUIT )
HINT:

When 2 or more DTC's are recorded, and the problem is not identified, perform circuit inspection of the other DTC's.
Identification of Problem
Repair
Confirmation Test
End

HINT:

Step 3, 6, 9, 12:

Diagnostic steps permitting the use of the hand-held tester.

Fail safe function:

When a failure occurs in the ABS system, the ABS warning light is lit and the ABS operation is prohibited.

In addition to this, when the failure which disables the EBD operation occurs, the brake warning light is lit as well and the EBD operation is prohibited.