ignition ACURA CSX 2006 Service Repair Manual

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YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
22-225
WINDSHIELD WIPER MOTOR 5P CONNECTOR
AS (WHT) UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P)
LOW (BLU) HIGH (YEL)
WINDSHIELD WIPER MOTOR 5P CONNECTOR GND (BLK)
10. Turn the ignition switch to ON (II).
11. Measure the voltage between windshield wipermotor 5P connector terminal No. 5 and body
ground.
Repair a short to power in the WHT wire.
Faulty MICU; replace the under-dash fuse/
relay box.
12. Turn the ignition switch to LOCK (0).
13. Check the No. 38 (30 A) fuse in the under-dash fuse/ relay box.
Go to step 14.
Replace the fuse and recheck the system.
14. Do the wiper motor test (see page 22-231).
Go to step 15.
Replace the windshield wiper motor
(see page 22-233) and recheck.
15. Reconnect the windshield wiper motor 5P connector. 16. Measure the voltage between under-dash fuse/
relay box connector F (34P) terminals No. 18 (LOW)
and No. 19 (HIGH) and body ground with the wiper
switch in corresponding position.
Go to step 17.
Faulty MICU; replace the under-dash fuse/
relay box (see page 22-66).
17. Measure the voltage between windshield wiper motor 5P connector terminal No. 2 and body
ground.
Repair an open in the BLU (LOW) or YEL
(HIGH) wire.
Repair an open in the BLK wire or poor
ground (G 201).
Wire side of female terminals Wire side of female terminals
Wire side of female terminals
Is there voltage? IsthefuseOK?Does t he w i per mot or r un nor mal l y ? Is there battery voltage?
Is t her e l ess t han 0.5 V ?
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DTC B1281:
DTC B1282:
DTC B1283:
DTC B1284:
YES
NO
When the wiper switch is turned OFF Data List Value
YES
NO From terminal To terminal
YES
NO
When the wiper switch is turned OFF Data List Value
YES
NO
22-226 Wipers/Washers
DTC Troubleshooting (cont’d)
Windshield Wiper Switch MIST
Position Circuit Malfunction
Windshield Wiper Switch INT
Position Circuit Malfunction
Windshield Wiper Switch LOW
Position Circuit Malfunction
Windshield Wiper Switch HIGH
Position Circuit Malfunction
NOTE: If you are troubleshooting multiple DTCs, be
sure to follow the instructions in B-CAN System
Diagnosis Test Mode A (see page 22-93).
1. Clear the DTCs with the HDS.
2. Turn the ignition switch to LOCK (0) and then back to ON (II).
3. Turn the wiper switch to the MIST, INT, LOW, HIGH, and OFF positions, and wait for at least 6 seconds.
4. Check for DTCs with the HDS.
Go to step 5.
Intermittent failure, the wiper system is OK at
this time. Check for loose or poor connections.
5. Select WIPERS from the BODY ELECTRICAL menu, and enter DATA LIST.
6. Check each wiper switch position value with the DATA LIST menu.
Wiper switch (LOW) OFF
Wiper switch (HIGH) OFF
Wiper switch (MIST) OFF
Wiper switch (INT) OFF Go to step 7.
Go to step 10. 7. Turn the ignition switch to LOCK (0).
8. Disconnect under-dash fuse/relay box connector S
(20P).
9. Check for continuity between under-dash fuse/relay box connector S (20P) terminals as shown:
10 6, 15, 20
15 6, 20
Repair a short between the wires.
Faulty MICU; replace the under-dash fuse/
relay box (see page 22-66).
10. Turn the ignition switch to LOCK (0).
11. Disconnect the 8P connector from the wiper switch.
12. Turn the ignition switch to ON (II).
13. Check each wiper switch position value with the DATA LIST menu.
Wiper switch (LOW) OFF
Wiper switch (HIGH) OFF
Wiper switch (MIST) OFF
Wiper switch (INT) OFF Replace the wiper/washer switch (see page
22-234).
Go to step 14.
I s DT C B12 81, B12 82 , B12 83, or B12 84 i nd i cat ed ?
Are all data list values correct? Is there continuity?
Are all data list values correct?
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YES
NO YES
NO
22-227
UNDER-DASH FUSE/RELAY BOX CONNECTOR S (20P)
WIP INT/LO SW (ORN)
WIP MIST
SW (GRN) WIP LO/HI
SW (WHT) UNDER-DASH FUSE/RELAY BOX CONNECTOR S (20P)
WIP INT/
LO SW
(ORN)
WIP MIST
SW (GRN) WIP LO/HI
SW (WHT)
COMBI GND (BLK)
COMBI GND (BLK)
COMBI GND (BLK)
14. Turn the ignition switch to LOCK (0).
15. Disconnect under-dash fuse/relay box connector S
(20P).
16. Check for continuity between body ground and under-dash fuse/relay box connector S (20P)
terminals No. 10, No. 15, and No. 20 individually.
Repair a short to ground in the wire.
Go to step 17. 17. Check for continuity between under-dash fuse/relay
box connector S (20P) terminal No. 4 and terminals
No. 10, No. 15, and No. 20 individually.
Repair a short between the wires.
Faulty MICU; replace the under-dash fuse/
relay box (see page 22-66).
Wire side of female terminals Wire side of female terminals
Is there continuity?
Is there continuity?
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Cavity Wire Test conditionTest: Desired result Possible cause if desired result
is not obtained
22-230Wipers/Washers
MICU Input Test (cont’d)
5. Reconnect the connectors to the under-dash fuse/relay box, and do these input tests at the following connectors.
 If any test indicates a problem, find and correct the cause, then recheck the system.
 If all the input tests prove OK, the MICU must be faulty; replace the under-dash fuse/relay box.




























E6 BLK Under all conditions Measure the voltage to ground:
There should be less than 0.5 V.Poor ground (G602)
An open in the wire
E33 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V.Poor ground (G601)
An open in the wire
F20 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V.Poor ground (G401)
An open in the wire
T34 BLK Under all conditions Measure the voltage to ground: There should be less than 0.5 V.Poor ground (G501)
An open in the wire
S10 ·
S4 ORN
·
BLK Ignition switch ON (II),
windshield wiper/
washer switch (INT)
ON Measure the voltage between
terminals S10 and S4, and
terminals S20 and S4:
There should be less than 1 V. Faulty windshield wiper/
washer switch
An open in the wire
Ignition switch ON (II),
windshield wiper/
washer switch OFF Measure the voltage between
terminals S10 and S4, and
terminals S20 and S4:
There should be more than 5 V. Faulty windshield wiper/
washer switch
A short to ground in the wire
S15 ·
S4 GRN
·
BLK Ignition switch ON (II),
windshield wiper/
washer switch (MIST)
ON Measure the voltage between
terminals S15 and S4:
There should be less than 1 V.
Faulty windshield wiper/
washer switch
An open in the wire
Ignition switch ON (II),
windshield wiper/
washer switch (MIST)
OFF Measure the voltage between
terminals S15 and S4:
There should be more than 5 V.
Faulty windshield wiper/
washer switch
A short to ground in the wire
S17 ·
S4 YEL
·
BLK Ignition switch ON (II),
windshield washer
switch ON Measure the voltage between
terminals S17 and S4:
There should be less than 1 V. Faulty windshield wiper/
washer switch
An open in the wire
Ignition switch ON (II),
windshield washer
switch OFF Measure the voltage between
terminals S17 and S4:
There should be more than 5 V. Faulty windshield wiper/
washer switch
A short to ground in the wire
S20 ·
S4 WHT
·
BLK Ignition switch ON (II),
windshield wiper/
washer switch (LOW)
ON Measure the voltage between
terminals S20 and S4:
There should be less than 1 V.
Faulty windshield wiper/
washer switch
An open in the wire
Ignition switch ON (II),
windshield wiper/
washer switch OFF Measure the voltage between
terminals S20 and S4:
There should be more than 5 V. Faulty windshield wiper/
washer switch
A short to ground in the wire
Ignition switch ON (II),
windshield wiper/
washer switch (HIGH)
ON Measure the voltage between
terminals S20 and S4:
There should be less than 1 V.
Faulty windshield wiper/
washer switch
An open in the wire
Ignition switch ON (II),
windshield wiper/
washer switch OFF Measure the voltage between
terminals S20 and S4:
There should be more than 5 V. Faulty windshield wiper/
washer switch
A short to ground in the wire
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Entering the self-diagnostic function with the HDS
Entering the self-diagnostic function (manual method)
22-241
Self-diagnostic Function
ON (II)
OFF ON
OFF ON
Ignition
Switch
Lighting
Switch
SEL/RESET
Switch
5sec.
5sec.
LOCK (0)
Before troubleshooting the gauge system, refer to multiplex integrated control system B-CAN System Diagnosis Test
Mode A (see page 22-93).
The gauge control module (tach) has a self-diagnostic function shown, and also has a customizable reset function.
 The beeper drive circuit check.
 The indicator drive circuit check.
 The switch input test.
 The LCD segments check.
 The gauges drive circuit check (Tachometer, Fuel gauge, Coolant temperature gauge).
 The communication line check (B-CAN, F-CAN, and UART lines).
NOTE: Indicators are also controlled via the communication line.
Using the HDS, select Body Electrical, Gauges, then Function Test and do the self-diagnostic function.
Before doing the self-diagnostic function, check the No. 10 (7.5 A) fuse in the under-dash fuse/relay box and the No. 23
(10 A) fuse in the under-hood fuse/relay box. 1. Push and hold the SEL/RESET switch button.
2. Turn the headlights ON.
3. Turn the ignition switch to ON (II).
4. Within 5 sec., turn the headlights OFF, then ON and OFF again.
5. Within 5 sec., release the SEL/RESET switch button, and then push and release the button three times repeatedly.
NOTE:  While in the self-diagnostic mode, the dash lights brightness controller operates normally.
 While in the self-diagnostic mode, the SEL/RESET switch button is used to start the Beeper Drive Circuit Test and the Gauge Drive Circuit Check.
 If the vehicle speed exceeds 2 km/h (1.2 mph) or the ignition switch is turned to LOCK (0), the self-diagnostic mode ends.
(cont’d)
Move to self-diagnostic mode.
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The Communication Line Check
Ending the self-diagnostic function
TYPE S model Error Code ListError 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 (B 1155 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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Except TYPE S model
22-244Gauges
Circuit Diagram - Gauge Control Module (Tach)
UART
WHT
IG1 HOT in ON (II) and START (III)
UNDER-HOOD FUSE/RELAY BOX
5V



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. 10UNDER-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
5V
5V
CONTROL
CIRCUIT
H1
D4 G2D2
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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TYPE S model
22-250Gauges
Circuit Diagram - Gauge Control Module (Tach) (cont’d)
UART
WHT
IG1 HOT in ON (II) and START (III)
UNDER-HOOD FUSE/RELAY BOX









 ECM
VSA MODULATOR-
CONTROL UNIT
YAW RATE-LATERAL
ACCELERATION SENSOR
EPS CONTROL UNIT
TPMS CONTROL UNIT*1
DATA LINK CONNECTOR
SRS UNIT MAIN CIRCUIT
MAIN CIRCUIT
MICU
  GRY
2
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. 10UNDER-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*2 IMMOBILIZER
INDICATOR
(LED)
H1
D4 G2D2
Q1 P5 P10 Q9
A DRIVER DRIVERMAIN CIRCUIT
MICU
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22-256 Gauges
Circuit Diagram - Dash Lights Brightness Controller
RED
GRY
BRN45
YEL 6
BLU 7
PUR
BLK
2176
4
G501 13
RED
14
16
BLK BLK
G503
13
RED
16
BLK BLK
G504 15
MAIN CIRCUIT
WHT BRN
No. 2 (IG) (50 A)
GAUGE CONTROL MODULE (TACH) 18 17
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 IG1 HOT in ON (II)
and START (III)
DASH LIGHTS BRIGHTNESS CONTROLLER and
ODOMETER SELECT/RESET SWITCH
No. 14 (7.5 A) FUSE
(UNDER-DASH
FUSE/RELAY BOX)
GAUGE CONTROL
MODULE (TACH) km/h
mph
SEL/
RESET
ILLUMI
()
ILLUMI
()
H1
D4 G2D2
UNDER-HOOD FUSE/RELAY BOX
5
3LIGHTS
(LED) Q1 Q9
MICU A/T GEAR POSITION INDICATOR
PANEL LIGHT
AMBIENT LIGHT
SEAT HEATER SWITCHES LIGHT
DRIVER’S FOOTWELL LIGHT*1
FRONT PASSENGER’S
FOOTWELL LIGHT*1
CLIMATE CONTROL UNIT*2
DASH LIGHTS BRIGHTNESS
CONTROLLER*2
FRONT PASSENGER’S
AIRBAG CUTOFF INDICATOR*2
VSA OFF SWITCH*2









AUDIO UNIT
NAVIGATION UNIT
HAZARD WARNING SWITCH LIGHT
MOONROOF SWITCH LIGHT
STEERING SWITCHES LIGHT
CLIMATE CONTROL UNIT*1
DASH LIGHTS BRIGHTNESS
CONTROLLER*1
FRONT PASSENGER’S
AIRBAG CUTOFF INDICATOR*1
VSA OFF SWITCH*1









*1: TYPE S model
*2: Except TYPE S model
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Except TYPE S model
22-258Gauges
Circuit Diagram - Gauge Control Module (Speedo)
UART
No. 10
(7.5 A)
No. 1 (BAT) (100 A)
IGNITION SWITCH
BATTERY
No. 23 (10 A)WHT
BLU
BAT
IG1
ORN
No. 2 (IG) (50 A)
BRN
WHT BRN
UNDER-HOOD FUSE/RELAY BOX
IG1 HOT in ON (II) and START (III)
WHT
DRIVE CIRCUIT DRIVE CIRCUIT
5
MAIN CIRCUIT LT GRN7GAUGE CONTROL MODULE (SPEEDO)
6
BLINKING
CIRCUIT
GAUGE
CONTROL
MODULE
(TACH)
10 V
STABILIZING
CIRCUIT
LOW FUEL
INDICATOR
(LED)
SECURITY
INDICATOR
(LED)
FUEL
METER
LCD
TEMP
METER
LCD
SPEEDOMETER
LCD GAUGE CONTROL
MODULE (TACH)UNDER-DASH
FUSE/RELAY
BOX
H1
D4 G2D2
P5 Q1 Q9P10
MICU
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