Toyota Camry (XV70): Diagnosis System
Toyota Camry Repair Manual XV70 (2018-2024) / Power Source, Network / Networking / Lin Communication System / Diagnosis System
DIAGNOSIS SYSTEM
DESCRIPTION
The main body ECU (multiplex network body ECU) and certification ECU (smart key ECU assembly) control the LIN communication system. LIN communication system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3).
When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
CHECK DLC3
(a) Check the DLC3.
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INSPECT BATTERY VOLTAGE
(a) Measure the battery voltage.
Standard Voltage:
11 to 14 V
If the voltage is below 11 V, recharge or replace the battery.
READ NEXT:
Dtc Check / Clear
DTC CHECK / CLEAR CHECK DTC (a) Connect the Techstream to the DLC3.
(b) Turn the ignition switch to ON. (c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / Main Body or Sm
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST HINT:
Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts.
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART LIN Communication System
DTC No. Detection Item
Link B1206
P/W Master Switch Communication Stop
B1273 Sliding Roof ECU Communica
SEE MORE:
Driving assist systems
To keep driving safety and performance, the following systems
operate automatically in response to various driving situations.
Be aware, however, that these systems are supplementary and
should not be relied upon too heavily when operating the vehicle.
◆ ABS (Anti-lock Brake System)
Helps t
Ultrasonic Sensor (Front Left Center) Missing Message (C1AE287)
DESCRIPTION This DTC is stored when an open circuit or short occurs in the communication line between the front center ultrasonic sensor LH and the front center ultrasonic sensor RH, or when a malfunction occurs in the front center ultrasonic sensor LH.
DTC No. Detection Item
DTC Detect
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