DESCRIPTION
Detection Item |
Symptom |
Trouble Area |
---|---|---|
Main Body ECU Communication Stop Mode |
|
|
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
HINT:
PROCEDURE
1. |
CHECK CAN BUS WIRE FOR DISCONNECTION (MAIN BODY ECU BRANCH WIRE) |
(a) Turn the ignition switch off.
(b) Disconnect the connector of the main body ECU. Text in Illustration
|
|
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Switch Condition |
Specified Condition |
---|---|---|
D48-5 (CANH) - D48-6 (CANL) |
Ignition switch off |
54 to 69 Ω |
NG | ![]() |
REPAIR OR REPLACE CAN BUS BRANCH WIRE OR CONNECTOR (MAIN BODY ECU BRANCH WIRE) |
|
2. |
CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL) |
(a) Disconnect the connector of the driver side junction block. Text in Illustration
|
|
(b) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
2C-24 (BECU) - Body ground |
Always |
11 to 14 V |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) |
|
3. |
CHECK HARNESS AND CONNECTOR (GROUND TERMINAL) |
(a) Disconnect the connector of the driver side junction block. Text in Illustration
|
|
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
2F-16 (GND1) - Body ground |
Always |
Below 1 Ω |
OK | ![]() |
REPLACE MAIN BODY ECU (DRIVER SIDE JUNCTION BLOCK) |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT) |
Lost Communication with Gateway Module (Power Management2) (U1002)
DESCRIPTION
The power management control ECU will store this DTC when no signals
can be received from the ECUs that have been memorized as those that are
connected to the power management bus.
When the power management control ECU receives ...
Diagnosis System
DIAGNOSIS SYSTEM
1. DESCRIPTION
(a) Front power seat control system (w/ Memory) data and Diagnostic Trouble Codes
(DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When
the system seems to be malfunctioning, use the Techstream t ...
Automatic High Beam
The Automatic High Beam uses an in-vehicle camera sensor to assess the brightness
of streetlights, the lights of oncoming and preceding vehicles, etc., and automatically
turns high beam on or off as necessary.
- Activating the Automatic High Beam sy ...