Toyota 4Runner: Sending Malfunction (Navigation to APGS) (U0073,U0140)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the CAN communication circuit.
|
DTC No. |
DTC Detection Condition |
Trouble Area |
|---|---|---|
|
U0073 |
CAN bus connection error |
CAN communication system |
|
U0140 |
CAN reception error |
PROCEDURE
|
1. |
CHECK DTC |
(a) Clear the DTCs (See page .gif)
).
(b) Recheck for DTCs and check if the same DTC is output again.
OK:
No DTCs are output.
| OK | .gif) |
USE SIMULATION METHOD TO CHECK |
| NG | |
GO TO CAN COMMUNICATION SYSTEM |
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART
Audio and Visual System
DTC Code
Detection Item
See page
B1532
LVDS Signal Malfunction (from Extension Modu ...
XM Tuner Antenna Disconnected (B15FE,B15FF)
DESCRIPTION
These DTCs are stored when a malfunction occurs in the satellite radio antenna
assembly which is connected to the stereo component tuner assembly.
DTC No.
DTC Det ...
Other materials about Toyota 4Runner:
Light Sensor Circuit Malfunction (B1244)
DESCRIPTION
The automatic light control sensor detects ambient light, converts it into an
electrical signal, and outputs it to the main body ECU. The main body ECU turns
on or off the headlights and taillights according to the signal.
DTC Code ...
Operation Check
OPERATION CHECK
1. AUTOMATIC LIGHT CONTROL SYSTEM OPERATION CHECK
(a) Turn the ignition switch to ON.
(b) Turn the headlight dimmer switch to the AUTO position.
(c) Cover the automatic light control sensor.
(d) Check that the taillights and low beam headl ...
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