Sliding Roof System - Diagnosis System

Brand:

Toyota

Model Name:

Camry ACV40 GSV40

Manual:

Repair Manual

Section:

Sliding Roof

Title:

Sliding Roof System

  1. Description

  2. Check dlc3

  3. Inspect battery voltage



​

DESCRIPTION

  1. Sliding roof system data and Diagnostic Trouble Codes (DTCs) can be read through the vehicle's Data Link Connector 3 (DLC3). When the system seems to be malfunctioning, use the intelligent tester to check for malfunctions and perform repairs.


CHECK DLC3
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector. Camry
If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector. Camry
HINT:
The ECU uses ISO 15765-4 for communication. The terminal arrangement of the DLC3 complies with SAE J1962 and matches the ISO 15765-4 format. If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.

Symbols (Terminals No.)
Terminal Description
Condition
Specified Condition
SIL (7) - SG (5)
Bus "+" line
During transmission
Pulse generation
CG (4) - Body ground
Chassis ground
Always
Below 1 Ω
SG (5) - Body ground
Signal ground
Always
Below 1 Ω
BAT (16) - Body ground
Battery positive
Always
11 to 14 V
CANH (6) - CANL (14)
CAN bus line
Ignition switch off*
54 to 69 Ω
CANH (6) - CG (4)
CAN bus line
Ignition switch off*
200 Ω or higher
CANL (14) - CG (4)
CAN bus line
Ignition switch off*
200 Ω or higher
CANH (6) - BAT (16)
CAN bus line
Ignition switch off*
6 kΩ or higher
CANL (14) - BAT (16)
CAN bus line
Ignition switch off*
6 kΩ or higer
NOTICE:
*: Before measuring the resistance, leave the vehicle as is for at least 1 minute and do not operate the ignition switch, any other switches, or the doors.
  1. If the result is not as specified, the DLC3 may have a malfunction. Repair or replace the harness and connector.
HINT:
Connect the cable of the intelligent tester to the DLC3, turn the ignition switch on (IG) and attempt to use the tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester.
  1. If communication is normal when the tester is connected to another vehicle, inspect the DLC3 of the original vehicle.
  2. If communication is still not possible when the tester is connected to another vehicle, the problem may be in the tester itself. Consult the Service Department listed in the tester's instruction manual.

INSPECT BATTERY VOLTAGE
Standard voltage:
11 to 14 V
  1. If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.