ENGINE (DIAGNOSTICS)(H4DO) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC U0073 CONTROL MODULE COMMUNICATION BUS OFF
NOTE:
For the diagnostic procedure, refer to LAN section. Basic Diagnostic Procedure">
1. OUTLINE OF DIAGNOSIS
Detect malfunction of CAN communication.
Judge as NG when CAN communication failure has occurred.
2. COMPONENT DESCRIPTION
(Common Specifications)
CAN Protocol 2.0 B (Active)
Frame Format: 11 Bit ID Frame (Standard Frame)
Conforms to ISO11898
Communication Speed: 500 kbps
3. EXECUTION CONDITION
Secondary Parameters | Execution condition |
Battery voltage | ≥ 10.9 V |
4. GENERAL DRIVING CYCLE
Perform the diagnosis continuously after starting the engine.
5. DIAGNOSTIC METHOD
Judge as NG when the following conditions are established.
Malfunction Criteria | Threshold Value |
CAN bus condition | Bus off |
Time Needed for Diagnosis: 436 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
Light control and wiper control levers/switches
Windshield wiper
Mist
Windshield washer
Rear window wiper and washer switch
Wiper intermittent time control switch
Wiper control lever
Light control switch
Fog light switch
Headlight ON/OFF/AUTO
Headlight flasher High/Low beam
Turn signal lever
...
SXM setting
1. An option menu screen is displayed
when you touch the tab on the
lower
left side of the screen. The "Options"
screen will appear.
Option menu screen
No.
Function
1
Set the lock function of each channel.
Input the password is necessary
for operation.
...
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SiriusXM Satel l i t e Radio ( i f
equipped)
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Inc. All ri ...