2006 ACURA CSX display



How to Use the Self-diagnostic Function without the HDS
Except Type S model
Type S model
Canceling the Self-diagnostic Function
21-11
AUTO BUTTON AUTO INDICATOR MODE BUTTON
TEMPERATURE INDICATOR
RECIRCULATION BUTTON A/C BUTTON
MODE BUTTON TEMPERATURE INDICATOR
RECIRCULATION BUTTON
A/C BUTTON AUTO BUTTON
AUTO INDICATOR
The climate control unit has a self-diagnostic function. To run the self-diagnostic function, do the following:
1. Make sure the ignition switch is in LOCK (0).
2. Press and hold the AUTO and RECIRCULATION buttons, turn the ignition switch to ON (II), then release the AUTO and RECIRCULATION buttons.
3. All LCD segments come on for 2 seconds, then self-diagnostic function begins.
NOTE: The blower motor will run at various speeds when in the self-diagnostic mode, regardless of what the
panel is displaying. If there is any problem in the system, the temperature indicator will light up the segment (A through P) and AUTO indicator corresponding to the error. The temperature indicator will then alternate every second between
displaying ‘‘88’’ (all segments lit) and the error code segment (A through P) and AUTO indicator. To determine
the meaning of the DTC, refer to checking for DTCs.
 If there are no problems detected, the segments will not illuminate, and the system will appear to be turned off.
4. Turn the ignition switch to LOCK (0) to cancel the self-diagnostic function. After completing repair work, run the self-diagnostic function again to make sure that there are no other DTCs.
(cont’d)
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Checking for DTCs
DTC
(Temperature Indicator
Segment and AUTO
Indicator) Detection Item
21-12Climate Control
General Troubleshooting Information (cont’d)
AUTO INDICATOR
NM
TEMPERATURE INDICATOR
EG C
D
H
P
K
L
F
B A
J
The temperature display indicates single or multiple DTCs. If indicator segments A, C, E, G, J, M, and AUTO are on at
the same time, there may be an open in the common ground wire. If no DTCs are present, the indicator remains blank.
A An open in the in-car temperature sensor circuit (see page 21-31)B A short in the in-car temperature sensor circuit (see page 21-32)
C An open in the outside air temperature sensor circuit (see page 21-33)
D A short in the outside air temperature sensor circuit (see page 21-34) E An open in the sunlight sensor circuit (see page 21-35)F A short in the sunlight sensor circuit (see page 21-36)
G An open in the evaporator temperature sensor circuit (see page 21-37) H A short in the evaporator temperature sensor circuit (see page 21-39) J An open in the air mix control motor circuit (see page 21-40)
K A short in the air mix control motor circuit (see page 21-41) L A problem in the air mix control linkage, door, or motor (see page 21-42)
M An open or short in the mode control motor circuit (see page 21-44) N A problem in the mode control linkage, doors, or motor (see page 21-46) P A problem in the blower motor circuit (see page 21-47)
A and AUTO An open in the recirculation control motor circuit (see page 21-52) B and AUTO A problem in the recirculation control linkage, door, or motor (see page 21-51)
C and AUTO Climate control unit internal error (see page 21-28)
D and AUTO Climate control unit lost communication with gauge control module (TACH) (ILLUMI message) (see page 21-28)
E and AUTO A short in the recirculation control motor circuit (see page 21-29) F and AUTO Climate control unit lost communication with gauge control module (TACH) (ECT message) (see page 21-28)
J and AUTO Climate control unit lost communication with gauge control module (TACH) (VSP message) (see page 21-28)
K and AUTO Communication bus line error (see page 22-106) L and AUTO Climate control unit lost communication with gauge control module (TACH) (NE message) (see page 21-28)
08/08/21 14:40:58 61SNR030_210_0013
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Displaying Sensor Inputs at the Climate Control Unit
Check these items before using the sensor input display mode
To run the sensor input display mode, follow these steps
21-13
The climate control unit has a mode that displays the sensor inputs it receives. This mode shows you what data the
climate control unit is receiving from each of the sensors, one at a time, and it can help you determine if a sensor is
faulty.1. Turn the ignition switch to ON (II), and check the recirculation door function; press the recirculation button to switch from FRESH to RECIRC. The air volume and sound should change slightly.
2. Set the temperature control knob to the desired test temperature. When selecting the test temperature, note these items:
 ‘‘Lo’’ temperature setting will default to MAX COOL, VENT, and RECIRC.
 ‘‘Hi’’ temperature setting will default to MAX HOT, FLOOR, and FRESH.
 19 through 31 °C settings will use the automatic climate control logic.
3. Turn the ignition switch to LOCK (0).
1. Turn the ignition switch to LOCK (0).
2. Press and hold both the AUTO and MODE buttons, then start the engine.
3. After the engine starts, release both buttons. The display panel will flash the sensor number and then the value for that sensor. Record the value displayed.
4. To advance to the next sensor, press the A/C button. Sensor Item Displayed Value1 Mode Positioning BIT
2 In-car Temperature °C
3 Outside Air Temperature °C
4 Solar Radiation Sensor Value: Dark = 00, Flashlight = 04, Cloudy = 10, Sunny = 65 10 kcal/m ·h
5 Evaporator Outlet Air Temperature °C
6 Air Mix Opening (Low value indicates cooler air distribution, higher value indicates warmer air distribution) % of opening
7 Recirculation Opening % of opening
8 Vehicle Speed (Vehicle must be driven to display speed) km/h
9 Engine Coolant Temperature °C
A Vent Temperature Air Out (TAO) °C
NOTE:  The sensor values will be displayed in degrees Celsius (°C) or an alphanumeric code. Use the chart to convert the value to degrees Fahrenheit (°F).
 If the sensor value displays ‘‘Er’’ this indicates there is an open or short in the circuit or sensor. Check for DTCs using the HDS, or use the climate control self-diagnostic function.
 If necessary, compare the sensor input display to a known-good vehicle under the same test conditions.
 If the sensor is out of the normal range, refer to the sensor test or substitute a known-good sensor, and recheck.
5. To cancel the sensor input display mode, press the AUTO button or turn the ignition switch to LOCK (0). (cont’d)
2
08/08/21 14:40:58 61SNR030_210_0014
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Celsius to Fahrenheit Conversion Table
Alphanumeric Conversion Table
Alphanumeric Conversion Table (Mode Positioning)
21-14
Climate Control
General Troubleshooting Information (cont’d)
°C °F °C °F °C °F °C °F °C °F
0 3210502068308640104
1 3411522170318841106
2 3612542272329042108
3 3713552373339143109
4 3914572475349344111
5 4115592577359545113
6 4316612679369746115
7 4517632781379947117
8 46186428823810048118
9 48196629843910249120
°C °F °C °F °C °F °C °F °C °F
50 122 60 140 70 158 80 176 90 194
51 124 61 142 71 160 81 178 91 196
52 126 62 144 72 162 82 180 92 198
53 127 63 145 73 163 83 181 93 199
54 128 64 147 74 165 84 183 94 201
55 131 65 149 75 167 85 185 95 203
56 133 66 151 76 169 86 187 96 205
57 135 67 152 77 170 87 188 97 207
58 136 68 154 78 172 88 190 98 208
59 139 69 158 79 174 89 192 99 210
Display Reading (Alphanumeric) °C °F %
A1 thru A9 1 thru 9 30 thru 16 1 thru 9 B0 thru B9 10 thru 19 14 thru 2 10 thru 19
C0 thru C9 20 thru 29 4 thru 20 20 thru 29
D0 thru D9 30 thru 39 22 thru 38 30 thru 39 E0 thru E9 40 thru 49 40 thru 58 40 thru 49F0 thru F9 100 thru 109
Display Reading (Alphanumeric) Mode Position
2OVERVENT
AVENT 8 VENT-HEAT/VENTc HEAT/VENT
d HEAT/VENT-HEAT 9HEAT
b HEAT-HEAT/DEF 3 HEAT/DEF
7 HEAT/DEF-DEF
6DEF
EOVERDEF
08/08/21 14:40:58 61SNR030_210_0015
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Î
How to display DTCs on the gauge control module (tach)
How to clear the DTC
22-75
No DTCs detectedAll DTCs have been displayed
DTC detected
(the letter and four digit number on the left
represents the DTC, the right two digit is the
unit code.)
While in Test Mode 1, the DTCs which have been detected and stored individually by various B-CAN (Body-controller
Area Network) units, will be shown one by one on the odometer display when the communication between the MICU
and the gauge control module is normal. To scroll through the DTCs, press the select/reset button.
The unit that has stored the code can be identified by the number shown on the multi-information display.
MICU 10
Gauge control module 50
Climate control unit 51
HandsFreeLink control unit 94
Immobilizer-keyless control unit 96
While in Test Mode 1, press and hold down the SELECT/RESET button for more than 10 seconds.
(cont’d)
08/08/21 14:24:07 61SNR030_220_0077
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Gateway Function
Network ‘‘Loss of Communication’’ Error Checking Function
Except TYPE S Error Code List
Error code Type of communication line(s) error
TYPE S Error Code List Error code Type of communication line(s) error
22-81
(GATE WAY)CPU BAT
GND
FCAN BCAN
RTH
CAN H
5V
5V
CAN L
CAN H
CAN L
CAN H
Example: Error 1
The gauge control module acts as a gateway to allow both systems to share information, the gauge control module
translates information from B-CAN to F-CAN and from F-CAN to B-CAN.
The ECUs on the CAN circuit send messages to each other. If there is any malfunction on the network, the odo/trip
display on the gauge control module can indicate the error messages by entering the gauge self-diagnostic function
(see page 22-241).
 Error 1: There is a malfunction in the communication line between the gauge control module (tach) and the F-CAN.
 Error 2: There is a malfunction in the communication line between the gauge control module (tach) and the B-CAN.
 Error 3: There is a malfunction in the communication line between the gauge control module (tach) and the gauge control module (speedo) (UART line).
Error 1 F-CAN communication
Error 2 B-CAN communication
Error 3 UART communication
Error 12 F-CAN and B-CAN communication
Error 13 F-CAN and UART communication
Error 23 B-CAN and UART communication
Error 123 F-CAN, B-CAN and UART communication
Error 1 F-CAN communication
Error 2 B-CAN communication
Error 12 F-CAN and B-CAN communication
(cont’d)
08/08/21 14:24:08 61SNR030_220_0083
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NO
22-93
Troubleshooting - B-CAN System Diagnosis Test Mode A
A
Check the ECM/PCM for DTCs and troubleshoot ECM/
PCM (see page 11-3) or F-CAN loss of communication
errors first, then do this diagnosis if the symptom is
relatedtotheB-CANsystem.
NOTE: If the HDS is not available, do the Test Mode 1 and Test Mode 2 (see page 22-97).
 Always cycle the ignition switch within 3 seconds when prompted in the DTC troubleshooting
procedures.
1. Compare the symptom with this list of B-CAN related systems:
 Gauge control module
 Exterior lights
 Turn signals
 Entry light control
 Interior lights
 Door-open and trunk-open indicators
 Horns (security and panic)
 Chimes (key-in, seat belt, lights-on, and parking brake)
 Power window/moonroof timer
 Wiper/washer
Security
 Keyless entry
 Power door locks
Keyinterlock
 Dash light brightness control
Go to step 2.
Go to the system troubleshooting for the
system with the symptom. 2. Connect the HDS to the data link connector (A),
then turn the ignition switch to ON (II).
3. From the BODY ELECTRICAL menu, select UNIT INFORMATION, and then select CONNECTED UNIT
listed to see if the following control units are
communicating with the HDS.
MICU
 Gauge control module
 Immobilizer-keyless control unit
 Climate control unit
 HandsFreeLink control unit
NOTE:  If one or more of the units are not communicating with the HDS, DETECT will be
displayed.
 If the unit is not communicating or the vehicle is not equipped, ‘‘Not Available’’ will be displayed.
Go to step 4.
If any of the control units are not
communicating, go to B-CAN System Diagnosis
Test Mode B (see page 22-94). If all units are not
communicating or only the MICU is communicating,
go to DTC B1000 troubleshooting (see page 22-102).
(cont’d)
Is the symptom related to the B-CAN system? Ar e al l cont r ol uni t s communi cat i ng w i t h t he H DS?
08/08/21 14:24:59 61SNR030_220_0095
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(#')
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NO
YES
NOUnit not communicating
22-9422-94Multiplex Integrated Control System
Troubleshooting - B-CAN System
Diagnosis Test Mode A (cont’d)
Troubleshooting - B-CAN System
Diagnosis Test Mode B
4. Select the system that has the problem from the
BODY ELECTRICAL menu, then select DTCs.
Go to step 5.
If the problem is related to one of the
following items, go to B-CAN System Diagnosis
Test Mode C (see page 22-95) if the system does
not stop or turn off. Go to Test Mode D (see page
22-96) if the system does not run or turn on.
 Exterior lights
 Turn signals
 Entry light control
 Interior lights
 Horn (security and panic)
 Wiper/washer
If the problem is related to one of the following
items, go to the troubleshooting for that individual
system.  Gauge control module
 Door-open and trunk-open indicators
 Chimes (key-in, seat belt, lights-on, and parking brake)
Security
 Keyless entry
Keyinterlock
 Dash light brightness control
 Audio system
 Navigation (if equipped)
 HandsFreeLink (if equipped)
5. Record all DTCs, and sort them by DTC type.
6. Troubleshoot the DTC(s) in this order:  Battery voltage DTCs.
 Internal error DTCs.
 Loss of communication DTCs. Begintroubleshooting with the lowest number first
(Example: if DTC B1008 and B1011 are retrieved,
begin by troubleshooting B 1008).
 Signal error DTCs. Do this diagnosis if any of the control units are not
communicating (Not Available is displayed in the HDS)
as found by the B-CAN System Diagnosis Test Mode A
(see page 22-93).
1. Using the HDS, select the system that has the symptom from the BODY ELECTRICAL menu.
2. Select DTCs, and then check for loss of communication DTCs.
Go to step 3.
Replace the MICU.
3. Do the input test for the unit not communicating with the HDS.
MICU (see page 22-109)
Gauge control module (see page 22- 271)
Immobilizer-keyless control unit (see page
22-330)
Climate control unit (see page 21-24)
HandsFreeLink control unit (see page 23-388)
Are any DTCs indicated?
Ar e any l oss of communi cat i on DT Cs i nd i cat ed ?
08/08/21 14:24:59 61SNR030_220_0096
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