Body Control Systems - Diagnostics: Pre-Check

USING HAND-HELD TESTER
1. Hook up the hand-held tester to the DLC3.
2. Monitor the ECU data by following the prompts on the tester screen.
  HINT:
  
  Hand-held tester has a "Snapshot" function which records the monitored data.
  
  Please refer to the hand-held tester operator's manual for further details.
DTC CLEAR
The DTCs and freeze frame data will be erased by either action.

Operate the hand-held tester to erase the codes.

DATA LIST

HINT:

According to the DATA LIST displayed by the hand-held tester, you can read the value of the switch, sensor, actuator and so on without parts removal. Reading the DATA LIST as a first step of troubleshooting is one of the method to shorten the labor time.

Connect the hand-held tester to the DLC3.
Turn the ignition switch ON.
According to the display on tester, read the "DATA LIST".

Power source & ignition switch:

Fig 1: Data List - Power Source & Ignition Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Key unlock warning switch:

Fig 2: Data List - Key Unlock Warning Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Door courtesy switch:

Fig 3: Data List - Door Courtesy Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Headlight dimmer switch:

Fig 4: Data List - Headlight Dimmer Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Light control switch:

Fig 5: Data List - Light Control Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Door key lock and unlock switch:

Fig 6: Data List - Door Key Lock And Unlock Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Door key lock and unlock switch:

Fig 7: Data List - Door Key Lock And Unlock Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Parking brake switch:

Fig 8: Data List - Parking Brake Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Driver seat buckle switch:

Fig 9: Data List - Driver Seat Buckle Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Seat memory switch:

Fig 10: Data List - Seat Memory Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Wireless door lock control:

Fig 11: Data List - Wireless Door Lock Control

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Wireless door lock buzzer:

Fig 12: Data List - Wireless Door Lock Control

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Light control sensor:

DATA LIST - LIGHT CONTROL SENSOR

Item	Measurement Item/Display (Range)	Normal Condition	Diagnostic Note
LIGHTING TIME	Lighting time	7.5 s/15 s/30 s	-

Open door warning light:

Fig 13: Data List - Open Door Warning Light

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Illumination:

Fig 14: Data List Illumination

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Park / Neutral position switch:

Fig 15: Data List - Park / Neutral Position Switch

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Alternator signal:

Fig 16: Data List - Alternator Signal

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Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Others:

Fig 17: Data List - Others

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ACTIVE TEST
HINT:

Performing the ACTIVE TEST using the hand-held tester allows the relay, VSV, actuator and so on to operate without parts removal. Performing the ACTIVE TEST as a first step of troubleshooting is one of the method to shorten the labor time.

It is possible to display the DATA LIST during the ACTIVE TEST.
1. Connect the hand-held tester to the DLC3.
2. Turn the ignition switch ON.
3. According to the display on tester, perform the "ACTIVE TEST".
  
  Fig 18: Diagnosis Chart - Active Test
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002