How To Proceed With Troubleshooting

VEHICLE BROUGHT TO WORKSHOP
CUSTOMER PROBLEM ANALYSIS (See CUSTOMER PROBLEM ANALYSIS CHECK )
CONNECT OBD HAND-HELD TESTER TO DLC3
HINT:

If the display indicates a communication fault in the tool, inspect the DLC3.
CHECK DTC AND FREEZE FRAME DATA (See DTC CHECK/CLEAR )
HINT:

Record or print DTC and freeze frame data, if needed.
CLEAR DTC AND FREEZE FRAME DATA (See DTC CHECK/CLEAR )
VISUAL INSPECTION
SETTING CHECK (TEST) MODE DIAGNOSIS (See CHECK MODE PROCEDURE )
PROBLEM SYMPTOM CONFIRMATION
HINT:

If the engine does not start, perform steps 10 and 12 first.

Fig 1: Malfunction Occur Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. B: Go to step 10 .
2. A: Go to next step.
SYMPTOM SIMULATION
DTC CHECK (See DTC CHECK/CLEAR )

Fig 2: Malfunction Code Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. B: Go to step 12 .
2. A: Go to next step.
DTC CHART (See DIAGNOSTIC TROUBLE CODE CHART )
Go to step 14
BASIC INSPECTION (See BASIC INSPECTION )

Fig 3: Wrong Part Confirmed Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. B: Go to step 17
2. A: Go to next step.
PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )

Fig 4: Wrong Part Confirmed Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. B: Go to step 17
2. A: Go to next step.
CHECK ECM POWER SOURCE CIRCUIT (See ECM POWER SOURCE CIRCUIT )
CIRCUIT INSPECTION

Fig 5: Malfunction Confirmed Chart
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. B: Go to step 18
2. A: Go to next step.
CHECK FOR INTERMITTENT PROBLEMS (See CHECK FOR INTERMITTENT PROBLEMS )
Go to step 18
PARTS INSPECTION
IDENTIFICATION OF PROBLEM
ADJUSTMENT, REPAIR
CONFIRMATION TEST
END