Acura CSX. Manual — part 549
03
The Communication Line Check
Ending the self-diagnostic function
TYPE S model Error Code List
Error code
Type of communication line(s) error
Except TYPE S model Error Code List
Error code
Type of communication line(s) error
Example Indication
22-243
Normal (all segments come on.):
Faulty (Error 1):
Fault (Error 13):
Fault (Error 123):
While in the self-diagnostic mode, the Communication Line Check starts after the LCD Segments Check.
If all segments come on, the communication line is OK. If faulty, the word ‘‘Error’’ will be indicated on the odometer
display followed by number(s).
Error 1
F-CAN communication
Error 2
B-CAN communication
Error 12
F-CAN and B-CAN communication
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
• If the word ‘‘Error 1’’ is indicated, there is a malfunction in the communication line between the gauge control
module (tach) and the fast-controller area network (F-CAN). Check for DTCs in the ECM/PCM and troubleshoot any
DTCs found. If no DTCs are found, go to indicated troubleshooting.
• If the word ‘‘Error 2’’ is indicated, there is a malfunction in the communication line between the gauge control
module (tach) and the body-controller area network (B-CAN). Go to indicated troubleshooting (B1155 to B1160).
• Except TYPE S model: If the word ‘‘Error 3’’ is indicated, there is a malfunction in the UART communication line
between the gauge control module (tach) and the gauge control module (speedo). Go to the gauge control module
(tach) input test and check terminal No. 20. If the wire harness is OK, substitute a known-good gauge control module
(speedo) and recheck.
If any F-CAN or B-CAN communication line errors are found, go to DTC check using HDS.
Turn the ignition switch to LOCK (0).
NOTE: If the vehicle speed exceeds 2 km/h (1.2 mph), the self-diagnostic function ends.
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*90
SNR9AGFJ22100000000EAAT00
Except TYPE S model
22-244
Gauges
Circuit Diagram - Gauge Control Module (Tach)
UART
WHT
IG1 HOT in ON (II) and START (III)
UNDER-HOOD FUSE/RELAY BOX
5 V
•
•
•
MAIN CIRCUIT
MAIN CIRCUIT
MICU
•
•
LT GRN
20
21
PNK
124
CAN L
CAN H
•
•
•
CHIME
BRN
WHT
BRN
RED
19
1
WHT
No. 2 (IG) (50 A)
GAUGE CONTROL MODULE (TACH)
18
17
TACHOMETER
ORN
IG1
BAT
BLU
WHT
No. 23 (10 A)
BATTERY
IGNITION SWITCH
No. 1 (BAT) (100 A)
(7.5 A)
No. 10
UNDER-DASH
FUSE/RELAY
BOX
GAUGE CONTROL
MODULE (SPEEDO)
DRIVE
CIRCUIT
DIMMING
CIRCUIT
PARKING
BRAKE
REMINDER
SEAT
BELT
REMINDER
KEY-IN
REMINDER
F-CAN
TRANSCEIVER
B-CAN
TRANSCEIVER
IMMOBILIZER-
KEYLESS
CONTROL UNIT
GAUGE
CONTROL
MODULE
(SPEEDO)
10 V
STABILIZING
CIRCUIT
HIGH BEAM
INDICATOR
(LED)
LIGHTS-ON
REMINDER
CLIMATE CONTROL
UNIT
HANDSFREELINK
CONTROL UNIT*3
IMMOBILIZER
INDICATOR
(LED)
ON/OFF
5 V
5 V
CONTROL
CIRCUIT
H1
D4
G2
D2
Q1
P5
P10
Q9
A
ECM/PCM
ABS MODULATOR-
CONTROL UNIT*1
VSA MODULATOR-
CONTROL UNIT*2
YAW RATE-LATERAL
ACCELERATION SENSOR*2
EPS CONTROL UNIT
TPMS CONTROL UNIT*2
DATA LINK CONNECTOR
SRS UNIT
•
•
•
•
•
•
•
•
MICU
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*90
−
−
22-245
C
(LED)
LCD DISPLAY
LCD DRIVER
MAIN CIRCUIT
33
ORN
ORN
32
LT GRN
3
1
PUR
(LED)
(LED)
(LED)
C
LCD DISPLAY
B
A
GAUGE CONTROL MODULE (TACH)
ODO,
TRIP A/TRIP B
OUTSIDE AIR
TEMPERATURE
CHECK FUEL CAP
SERVICE OIL LIFE
ILLUMINATION CONTROL &
DIMMING CIRCUIT
FOR POINTER
ILLUMINATION CONTROL &
DIMMING CIRCUIT
FOR DIAL
ILLUMINATION CONTROL &
DIMMING CIRCUIT
FOR LCD
FUEL
GAUGE
SENDING
UNIT
FUEL
TANK
UNIT
ILLUMINATION CONTROL &
DIMMING CIRCUIT
FOR SHIFT INDICATOR
SHIFT
INDICATOR
(A/T)
MAIN CIRCUIT
A
: CAN line
: Other communication line
•
•
•
•
*1: ’06 07 models
*2: ’08 09 models
*3: ’09 model with navigation system
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*91
22-246
Gauges
G504
G503
SHIFT INDICATOR
AUDIO UNIT
NAVIGATION UNIT
HAZARD WARNING SWITCH LIGHT
MOONROOF SWITCH LIGHT
STEERING SWITCHES LIGHT
RED
•
•
•
•
•
•
•
GAUGE CONTROL MODULE (TACH)
MIAN CIRCUIT
INDICATOR DRIVE CIRCUIT
16
15
14
13
9
10
11
C
B
A
INDICATOR DRIVE CIRCUIT
BLK
BLK
•
•
•
•
•
RED
YEL
LT GRN
ORN
LIGHTS-ON/FOG LIGHT
INDICATOR
DIMMING CIRCUIT
CRUISE CONTROL
SET/RESUME/CANCEL
SWITCH
CRUISE
CONTROL
INDICATOR
(LED)
DASH LIGHTS
BRIGHTNESS
CONTROLLER
A/T GEAR POSITION
INDICATOR
COMPULSORY
TURNING-ON
CIRCUIT
CRUISE
DIMMING
CIRCUIT
LIGHTS-ON/FOG LIGHT
INDICATOR
CRUISE
CONTROL
MAIN
SWITCH
FAIL-SAFE
CIRCUIT
COMPULSORY
TURNING-OFF
CIRCUIT
MALFUNCTION
INDICATOR
LAMP (MIL)
(LED)
A/T GEAR POSITION INDICATOR
PANEL LIGHT
AMBIENT LIGHT
SEAT HEATER SWITCHES LIGHT
CLIMATE CONTROL UNIT
DASH LIGHTS BRIGHTNESS
CONTROLLER
FRONT PASSENGER’S
AIRBAG CUTOFF INDICATOR
VSA OFF SWITCH
CRUISE
MAIN
INDICATOR
(LED)
C
B
08/08/21 14:35:13 61SNR030_220_0248
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