DIAGNOSIS AND REPAIR WORKFLOW
Interview Sheet

Precaution
System descriptionU1227 AV control unit
DTC Logic
Diagnosis Procedure
1.CHECK PLAYBACK OF A DISK (DVD)
U1228 AV CONTROL UNIT
DTC Logic
DTC DETECTION LOGIC
U1229 AV CONTROL UNIT
DTC Logic
DTC DETECTION LOGIC
U122A AV CONTROL UNIT
DTC Logic
Diagnosis Procedure
1.PERFORM THE SELF-DIAGNOSIS
When U122A is detected, wri ...
Tweeter
Description
The audio unit sends audio signals to the tweeters using the front door
speaker circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the audio unit and speaker connectors for the following:
Proper connection
Damage
Disconnected or loose terminals
2.HARNESS CHECK
...
The fuel gauge pointer does not move to "F" when refueling
Description
The fuel gauge needle will not move to "F" position when
refueling.
Diagnosis Procedure
1.OBSERVE FUEL GAUGE
Does it take a long time for the pointer to move to FULL
position?
2.IDENTIFY FUELING CONDITION
Was the vehicle fueled with the ignition switch ON?
3.OBSERVE VEHICLE PO ...