Communication Circuit Test
WARNING: This page is about a different car, the 2008 Acura TL and 2007 Acura TL. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the dashboard center vent (see DRIVER'S DASHBOARD UNDERCOVER REMOVAL/INSTALLATION ).
- Disconnect the display panel control unit connector B (6P) and connect the special tool (07AAZ-SEPA100) to display panel control unit.
- Push and hold the driver's "AUTO" button for 5 seconds.
- The driver's temperature and passenger's temperature indicators will display a code. Check the code in the list below. If the code is considered OK, then the center panel module's communication circuit is OK. If the code is considered a fault, replace the center panel module.CODE DESCRIPTION
Temp Indicator Code Code Description Communication circuit is: Possible problems: 00 00 Communication check normal OK - Communication circuit in the climate control unit is faulty
- Short or open in the communication circuit between the climate control unit and the display panel control unit
00 01 Over-run error Faulty - The display panel control unit is faulty
00 02 Framing error Faulty - The display panel control unit is faulty
00 04 Parity error Faulty - The display panel control unit is faulty
00 08 Timeout for 1st byte Faulty - The display panel control unit is faulty
00 10 Timeout between data characters Faulty - The display panel control unit is faulty
00 20 Other fault in communication 1 Faulty - The display panel control unit is faulty
00 40 Other fault in communication 2 Faulty - The display panel control unit is faulty
00 80 Timeout between data characters Faulty - The display panel control unit is faulty
FF FF Difference between sent data and received data Faulty - The display panel control unit is faulty
If the display module control unit fails to complete any of the functions of the self-diagnostic function, go to the display panel control unit input test (see DISPLAY PANEL CONTROL UNIT INPUT TEST ).