key ACURA CSX 2006 Service Repair Manual

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Special Tools Required
YES
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4-6Starting System
Starter System Circuit Troubleshooting
OTC3131
Alternator, Regulator, Battery & Starter tester OTC3131
Available through the Honda Canada Inc. Technical
Tools Department; FAX
866-398-8665/e-mail:
ch_technicaltools ch.honda.com
NOTE:  Air temperature must be within 15 38 °C (59 100 °F) during this procedure.
 After this inspection, you must reset the engine control module (ECM)/powertrain control module
(PCM). Otherwise, the ECM/PCM will continue to stop
the fuel injectors from operating.
 The battery must be in good condition and fully charged.
1. Connect the alternator, regulator, battery & starter tester (OTC3131) to the battery as shown.
NOTE: The probe is not used for battery testing.
2. Do the BATTERY TEST. ThebatteryisOK.Gotostep3.
If the display indicates BAD BATTERY, replace
the battery, then retest. If the display indicates
CHARGE & RETEST, charge the battery, then retest. 3. Connect the Honda Diagnostic System (HDS) to the
data link connector (DLC) (see step 2 on page 11-3).
4. Turn the ignition switch to ON (II).
5. Make sure the HDS communicates with the vehicle and the ECM/PCM. If it does not communicate,
troubleshoot the DLC circuit (see page 11-204).
6. Select ALL INJECTORS STOP in the PGM-FI INSPECTION menu with the HDS.
7. Set the parking brake, then with the shift lever in N or P (A/T model) or the clutch pedal pressed (M/T
model), turn the ignition switch to START (III).
The starting system is OK. Go to step 14.
Go to step 8.
8. Turn the ignition switch to LOCK (0).
9. Check the electrical connections at the battery, the negative battery cable to the body, the engine
ground cables, and the starter for looseness and
corrosion. Then try cranking the engine again.
Repairing the loose connection corrected the
problem. The starting system is OK. Go to step 14.
Based on the following symptoms, take the
appropriate action:
 If the starter does not crank the engine at all, go to step 10.
 If the starter cranks the engine erratically or too slowly,gotostep12.
 If the starter does not disengage from the flywheel ring gear (M/T model) or torque
converter ring gear (A/T model) when you
release the key, replace the starter, or remove
and disassemble it, and check for the following:
– Starter solenoid and switch malfunction
– Dirty drive gear or damaged overrunning clutch
Does the display indicate GOOD or GOOD, LOWCHARGE? Does t he st ar t er cr ank t he engi ne nor mal l y ?
Does t he st ar t er cr ank t he engi ne nor mal l y ?
08/08/21 14:09:22 61SNR030_040_0007
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Symptom Diagnostic procedure Also check for
4-24
Charging System
Symptom Troubleshooting Index
Charging system
indicator does not come
on with the ignition
switch in ON (II)
Troubleshoot the charging system indicator circuit
(see page 4-26).
Charging system
indicator stays on 1.
2.
3.
4.Troubleshoot the charging system indicator circuit
(see page 4-26).
Check for a broken drive belt (see page 4-30).
Check the drive belt auto-tensioner (see page 4-31).
Check for PGM-FI DTCs (see page 11-3).
Battery discharged 1. 2.
3.
4.
5.
6.Check for a poor connection at the battery terminal.
Check for a broken drive belt (see page 4-30).
Test the battery (see page 22-67).
Troubleshoot the alternator and regulator circuit
(see page 4-28).
Check the drive belt auto-tensioner (see page 4-31).
Check for excessive parasitic electrical current draw
with the ignition switch to LOCK (0), and the key
removed. The multiplex control unit may take up to 10
minutes to turn off (sleep mode) for same models.
Battery overcharged 1. 2.Test the battery (see page 22-67).
Troubleshoot the alternator and regulator circuit
(see page 4-28).
08/08/21 14:10:10 61SNR030_040_0025
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Out-of-Round and Taper
Journal Out-of-Round
Standard (New): 0.005 mm (0.0002 in.) max.
Service Limit: 0.010 mm (0.0004 in.)
Journal Taper
Standard (New): 0.005 mm (0.0002 in.) max.
Service Limit: 0.010 mm (0.0004 in.) Straightness
Crankshaft Total Runout
Standard (New): 0.03 mm (0.0012 in.) max.
Service Limit: 0.04 mm (0.0016 in.)
7-15
Crankshaft Inspection
1. Remove the crankshaft from the engine block(see page 7-13).
2. Clean the crankshaft oil passages with pipe cleaners or suitable brush.
3. Clean the keyway and the threads, and check for damage.
4. Measure the out-of-round at the middle of each rod and main journal in two places. The difference
between measurements on each journal must not
be more than the service limit.
5. Measure the taper at the edges of each rod and the main journal. The difference between
measurement on each journal must not be more
than the service limit. 6. Place the V-blocks on a flat surface.
7. Check the total runout with the crankshaft
supported on V-blo cks.
8. Measure the runout on all main journals. Rotate the crankshaft two complete revolutions. The
difference between measurements on each journal
must not be more than the service limit.
08/08/21 14:32:37 61SNR030_070_0015
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11-205
DATA LINK CONNECTOR (DLC)
K-LINE (LT BLU)
13. Turn the ignition switch to LOCK (0).
14. Turn the ignition switch to ON (II), and watch theimmobilizer indicator.
Go to the immobilizer system’s
troubleshooting (see page 22- 315).
 With TPMS: Go to step 15.
 Without TPMS: Go to step 17.
15. Turn the ignition switch to LOCK (0).
16. Turn the ignition switch to ON (II), and watch the TPMS indicator.
Go to the TPMS’s general troubleshooting
information (see page 18-49).
Go to step 17.
17. Do the gauge self-diagnostic function (see page 22-241).
18. Check for B-CAN system DTCs without the HDS (see page 22-74).
Go to the indicated DTC’s troubleshooting.
Go to step 19.
19. Turn the ignition switch to LOCK (0).
20. Disconnect the HDS from the DLC. 21. Check for continuity between DLC terminal No. 7
and body ground.
Go to step 22.
Go to step 23.
22. Continue to check for continuity between DLC terminal No. 7 and body ground, while
disconnecting these parts, one at a time:
 SRS unit connector A (28P)
 ABS modulator-control unit 25P connector (with ABS)
 VSA modulator-control unit 37P connector (with VSA system)
 EPS control unit connector D (28P)
 Immobilizer-keyless control unit 7P c onnector
 TPMS control unit 20P connector (with TPMS)
 Audio unit 17P connector
 Under-dash fuse/relay box Q (16P) connector
Replace the part that caused an open when it
was disconnected.
Repair short in the wire between the DLC (K-
line) and the ABS modulator-control unit (with
ABS), the VSA modulator-control unit (with VSA
system), the SRS unit, the EPS control unit, the
immobilizer-keyless control unit, the audio unit, the
TPMS control unit (with TPMS), or the under-dash
fuse/relay box.
(cont’d)
Terminal side of female terminals
Does the immobilizer indicator stay on or f lash?
Does t he T PM S i nd i cat or st ay on?Ar e any B-CAN DT Cs i nd i cat ed ? Is there continuity?
Does cont i nui t y go aw ay w hen one of t he abov econnect or s i s d i sconnect ed ?
08/08/21 14:21:54 61SNR030_110_0205
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Connector Terminal
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NO YES
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11-206
PGM-FI System
DLC Circuit Troubleshooting (cont’d)
DATA LINK CONNECTOR (DLC)
K-LINE (LT BLU)
JUMPER WIRE
DATA LINK CONNECTOR (DLC)B(WHT)
23. Connect DLC terminal No. 7 to body ground with ajumper wire.
24. Check for continuity between body ground and these connector terminals:
SRS unit A (28P) No. 24 (LT BLU)
ABS modulator-control unit
25P (with ABS) No. 10
(LT BLU)
VSA modulator-control unit
37P (with VSA system) No. 26
(LTBLU)
EPS control unit D (28P) No. 17 (LT BLU)
Immobilizer-keyless control
unit 7P No. 5 (LT BLU)
TPMS control unit 20P No. 7 (LT BLU)
Audio unit 17P No. 6 (LT BLU)
Under-dash fuse/relay box Q
(16P) No. 8 (LT BLU)
Replace the part which cannot communicate
with the HDS.
Repair open in the wire between the DLC (K-
line) and the appropriate connector. 25. Do the gauge self-diagnostic function (see page
22-241).
26. Check for B-CAN system DTCs without the HDS (see page 22-74).
Go to step 39.
Go to step 27.
27. Turn the ignition switch to LOCK (0).
28. Disconnect the HDS from the DLC.
29. Measure the voltage between DLC terminal No. 16 and body ground.
Go to step 30.
Repair open in the wire between DLC terminal
No.16andtheNo.23BACKUP(10A)fuseinthe
under-hood fuse/relay box.
Terminal side of female terminals
Terminal side of female terminals
Is t her e cont i nui t y bet w een t he bod y gr ound andeach of t he t er mi nal s i n t he char t ? I s DT C B1168, B1169, and / or B117 8 i nd i cat ed ?
Is there battery voltage?
08/08/21 14:21:55 61SNR030_110_0206
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Automatic Transmission
Automatic TransmissionA/T Gear Position Indicator
A/T Interlock System.............................................. .....
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Special Tools . 14-2
General Troubleshooting Information . 14-3
DTC Troubleshooting Index . 14-9
Symptom Troubleshooting Index . 14-13
Component Location Index . 14-25
System Description . 14-26
DTC Troubleshooting . 14-80
Road Test . 14-208
Stall Speed Test . 14-210
Pressure Test . 14-211
Shift Solenoid Valve
Test . 14-215
Replacement . 14-217
Shift Solenoid Wire Harness Replacement . 14-217
A/T Clutch Pressure Control Solenoid Valve A
Test . 14-219
Replacement . 14-221
A/T Clutch Pressure Control Solenoid Valve B
Test . 14-222
Replacement . 14-226
A/T Clutch Pressure Control Solenoid Valve C
Test . 14-224
Replacement . 14-226
Input Shaft (Mainshaft) Speed Sensor Replacement . 14-227
Output Shaft (Countershaft) Speed Sensor Replacement . 14-227
2nd Clutch Transmission Fluid Pressure Switch Replacement . 14-228
3rd Clutch Transmission Fluid Pressure Switch Replacement . 14-228
ATF Temperature Sensor Test/Replacement . 14-229
ATF Level Check . 14-231
ATF Replacement . 14-232
Transmission Removal . 14-233
Drive Plate Removal and Installation . 14-242
Transmission Installation . 14-242
ATF Cooler Hose Replacement . 14-253
Shift Lever Removal . 14-254
Shift Lever Installation . 14-255
Shift Lever Disassembly/Reassembly . 14-256
Shift Cable Replacement . 14-257
Shift Cable Adjustment . 14-259 ......................
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Component Location Index . 14-263
Circuit Diagram . 14-264
Transmission Range Switch Test . 14-265
Transmission Range Switch
Replacement . 14-267
A/T Gear Position Indicator Panel Light Harness Replacement . 14-269
Paddle Shifter (Upshift Switch) Circuit Troubleshooting . 14-270
Replacement . 14-276
Paddle Shifter (Downshift Switch) Circuit Troubleshooting . 14-273
Replacement . 14-277
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Component Location Index . 14-278
Circuit Diagram . 14-279
Shift Lock System Circuit
Troubleshooting . 14-280
Key Interlock System Circuit Troubleshooting . 14-285
Shift Lock Solenoid Test . 14-287
Shift Lock Solenoid Replacement . 14-287
Shift Lock Stop Replacement . 14-288
Shift Lock Stop Cushion Replacement . 14-288
Park Pin Switch Test . 14-289
Park Pin Switch Replacement . 14-269
08/08/21 14:37:02 61SNR030_140_0002
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SymptomProbable cause(s) Notes
14-12Automatic Transmission
Symptom Troubleshooting Index (cont’d)

















 

Shift lever cannot
be moved from P
while pressing on
the brake pedal
Accelerator pedal position sensor
circuit
Accelerator pedal position sensor
defective
Brake pedal position switch circuit
Brake pedal position switch
defective
Shift lock solenoid defective
Shift lock solenoid control circuit
Shift lock mechanism defective
Throttle body defective
Transmission range switch ATPP
switch stuck OFF
Transmission range switch ATPP
switch line opened Inspect the APP Sensor signal (see page 11-268).
Troubleshoot the shift lock system circuit
(see page 14-280).
Test the shift lock solenoid (see page 14-287).
Inspect the transmission range switch (see page
14-265).
Ignition switch
cannot be moved
from ACCESSORY
(I) to LOCK (0) (key
is pushed in, the
shift lever in P) Interlock control system circuit
Key interlock solenoid stuck ON
Park pin switch stuck OFF
Transmission range switch
Troubleshoot the key interlock system circuit
(see page 14-285).
Inspect the transmission range switch (see page
14-265).
HDS does not
communicate with
the PCM or the
vehicle DLC circuit error Troubleshoot the DLC circuit (see page 11-204).
08/08/21 14:37:08 61SNR030_140_0014
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14-77
IGNITION KEY
LOCK PIN
SHIFT LOCK STOP
SHIFT LOCK SOLENOID SELECT LEVER GATE
SHIFT LOCK RELEASE
When the shift lock system does not operate due to a mechanical or electrical trouble, you can unlock the shift lock
temporarily by inserting the ignition key into the shift lock release hole and pressing the shift lock release. When the
shift lock release is pressed, the shift lock stop releases the lock pin, and the shift lever can move to any other position.
08/08/21 14:39:44 61SNR030_140_0079
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14-278A/T Interlock System
Component Location Index
STEERING LOCK ASSEMBLY
KEY INTERLOCK SOLENOID
DATA LINK
CONNECTOR (DLC) PARK PIN SWITCH SHIFT LOCK SOLENOID
POWERTRAIN CONTROL
MODULE (PCM)TRANSMISSION
RANGE SWITCH
Key Interlock System Circuit
Troubleshooting, page 14-285
Key Interlock System Circuit Troubleshooting, page 14-285
Test, page 14-289
Replacement, page 14-269 Shift Lock System Circuit
Troubleshooting, page 14-280
Test, page 14-287
Replacement, page 14-287
08/08/21 14:50:04 61SNR030_140_0280
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14-279
Circuit Diagram
22
36 444342 27 28
3033 34 35
32 25
20 21 22 16 1817
13 14 15
12
11 789
31
3123
31
456
1514
2120 25
24
34
33
292827
42 44
40
37
36 31
123456 9
87
11 12 151413 17 1816
32
29
30
42 43 44
40
39
36
18
17
16 19
3598
10 2120
27
2
26 29 40
4
23 24
41 23
41
39
10
26
G601
4 3
DN
R
P ST
S RVS
FWD
BKSW LT GRN
LT GRNWHT
No. 12 (15 A)
YEL
BRN
PG SG 16
15
BLK A40
BKSW
WHT/BLK BLK LT BLU
BLK
C(44P)
B(44P)
A(44P)
Terminal side of female terminals
G503
BLK A36
A37
WHT
RED
RED
WHT
1
19 CANH
CANL
17
P
R
N
D
S
GAUGE CONTROL MODULE (TACH)
2 1 3 4 1
3827
65 41017
6
549 38 10
KEYSW KEYSOL
G504
BLU
PNK
PUR
BLK P-PIN
ATPPBLU/BLK 5 4 6 2 1
3
GRY PUR
LT BLU
A24
VCC5
APSB A18
A34
SG5
SG4
A35
A17
APSA VCC4 A25
BLUYEL
BRN
PG1
PG2
LG1
LG2
C40 B1
C44 B36
BRN/YEL
BRN/YEL
G101 PNK
BLK
B13 BLK/GRN
BRN
C36
IG1
12 V
No. 2 (15 A)
UNDER-DASH FUSE/RELAY BOX
No. 10 (7. 5 A)
BLU/WHT
RED/BLK
WHT ORN
SLS
A27
RED
BLK BAT
IG1
IGNITION SWITCH
5V
BLK
BLU/WHT
TRANSMISSION RANGE SWITCH
B22
ATPRVS
ATPFWD
ATPP
ATPR ATPN ATPD
ATPS
YEL/RED
B28
G101
B12
B21
BLU
PNK
RED/BLK
WHT
BLK/BLU
B14 B15
WHT/RED
BLU/BLK YEL/GRN
RED
BLU/YEL
1
2 YEL
PNK
UNDER-HOOD FUSE/RELAY BOX
No. 2 (IG) (50 A)
No. 1 (100 A)
BATTERY
STARTER
CUT
RELAY
SHIFT
LOCK
SOLENOID BRAKE
PEDAL
POSITION
SWITCH
ACCELERATOR
PEDAL
POSITION
SENSOR
KEY
INTERLOCK
SOLENOID IGNITION
KEY
SWITCH UNDER-DASH
FUSE/RELAY BOX
No.35(7.5A)
F-CAN
TRANSCEIVER
CPU A/T
GEAR
POSITION
INDICATOR
DRIVER
CIRCUIT
PARK PIN
SWITCH DASH-LIGHT
BRIGHTNESS
CONTROL
CIRCUIT
POWERTRAIN CONTROL
MODULE (PCM)
MULTIPLEX
INTEGRATED
CONTROL
UNIT (MICU)
SHIFT
INDICATOR
RED/WHT
GRN
G504
BLK/RED* BLK* *1: ’06 model
*2: ’07 09 models
BLK PCM Connector Terminal Locations GND
1
2
08/08/21 14:50:06 61SNR030_140_0281
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