OBD II Fault Code P9029 :

Description of Fault code P9029

Driver's MICU lost communication with Ultrasonic Unit

Possible failuer P9029

• Driver's MICU ground line open
• CAN communication line open
• CAN communication line short
• Ultrasonic Unit ground line open
• Ultrasonic Unit power circuit open
• Ultrasonic Unit failure

Diagnostic Procedure using AutoHex II Scan Tool

• The low level of the ignition signal is detected at initializing Engine Control Module (ECM). (The Engine Control Module (ECM) started without input of the ignition signals.)

Test Conditions using AutoHex tester

• The Engine Control Module (ECM) is initialized
• The Engine Control Module (ECM) reset by the program malfunction and the Engine Control Module (ECM) internal hardware malfunction isn't executed.

Clear Fault codes Conditions

• The low level of the ignition signal is detected at initializing Engine Control Module (ECM). (The Engine Control Module (ECM) started without input of the ignition signals.)

MIL Status

• Glow ON

Note:

• AutoHex II is a professional Auto diagnostic.
• This fault code is a GERENRIC fault code, some cars may change the meaning of this fault code.
  To get the accurate fault code description you may use AutoHex II

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