Battery ACURA CSX 2006 Service Workshop Manual

Î
11-67
ETCS
CONTROL
RELAY
A/C COMPRESSOR
CLUTCH RELAY
ELD BATTERY
UNDER-HOOD FUSE/RELAY BOX
WHT H1
BRN D1
ORN D4
WHT D8
YEL A1
ORN A3
BLK A2
G301 GRY
PUR E6
BLU E7
ORN
E5 E1
LT BLU
C1
IG1ETCS 21
C101
WHT K
J
A23
ELD Q RED
F20
PUR
F19
F16 F14
GRN
F9
F7
ORN
F6
YEL
F5
A14
ACC A21
SUBRLY A5
FANH A6
MRLY A4
FANL A8
IGP A20
ETCSRLY
ORN I
U
Y Z
XW
V N
PGM-FI
SUBRELAYPGM-FI
MAIN
RELAY 1
IGNITION
COIL
RELAYA/C
CONDENSER
FAN RELAY
COOLING
FAN
CONTROL
RELAY
RADIATOR
FAN RELAY
G1
9
10
ORN
ORN C101
YEL/BLK
A
PURPNK
15
3
(cont’d)
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Malfunction Indicator Lamp (MIL) Indication
(In relation to Readiness Codes) Catalytic Converter Monitor and Readiness
Code
Enable Criteria
Procedure
11-69
How to Set Readiness Codes
The vehicle has certain readiness codes that are part of
the on-board diagnostics for the emissions systems. If
the vehicle’s battery has been disconnected or gone
dead, if the DTCs have been cleared, or if the ECM/PCM
has been reset, these readiness codes are reset to
incomplete. In some states, part of the emissions
testing is to make sure these codes are set to complete.
If all of them are not set to complete, the vehicle may
fail the emission test, or the test cannot be finished.
To check if the readiness codes are set to complete,
turn the ignition switch to ON (II), but do not start the
engine. The MIL will come on for 15 20 seconds. If it
then goes off, the readiness codes are set to complete.
If it flashes five times, one or more readiness codes are
not set to complete. To set readiness codes from
incomplete to complete, do the procedure for the
appropriate code.
To check the status of a specific DTC system, check the
OBD status in the DTC MENU with the HDS (see page
11-8). This screen displays the code, the current data list
of the enable criteria, and the status of the readiness
testing. NOTE:
 Do not turn the ignition switch to LOCK (0) or ACC (I) during the procedure.
 All readiness codes are cleared when the battery is disconnected, if the DTCs have been cleared, or if the
ECM/PCM is reset with the HDS.
 Low ambient temperatures or excessive stop-and-go traffic may increase the drive time needed to switch
the readiness code from incomplete to complete.
 The readiness code will not switch to complete until all the enable criteria are met.
 If a fault in the secondary HO2S system caused the MIL to come on, the readiness code cannot be set to
complete until you correct the fault.
 ECT SENSOR 1 at 70 °C (158 °F) or more.
 IAT SENSOR at 7 °C (20 °F) or more.
 Vehicle speed (VSS) above 40 km/h (25 mph). 1. Connect the HDS to the vehicle’s data link connector (DLC), and bring up the READINESS
CODEs screen for Catalyst in the DTCs MENU.
2. Start the engine.
3. Test-drive the vehicle under stop-and-go conditions with short periods of steady cruise. After about
8 km (5 miles), the readiness code should switch to
complete.
4. If the readiness code is still not set to complete, check for a Temporary DTC with the HDS. If there is
no DTC, one or more of the enable criteria were
probably not met; repeat the procedure.
(cont’d)
08/08/21 14:15:32 61SNR030_110_0069
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Evaporative Emission (EVAP) Control
System Monitor and Readiness CodeAir Fuel Ratio (A/F) Sensor Monitor and
Readiness Code
Enable Criteria
Procedure Enable Criteria
Procedure
11-70Fuel and Emissions Systems
How to Set Readiness Codes (cont’d)
NOTE: All readiness codes are cleared when the battery
is disconnected, if the DTCs have been cleared, or if the
ECM/PCM is reset with the HDS.
 Battery voltage is more than 10.5 V.
 Engine at idle.
 ECT SENSOR 1 and ECT SENSOR 2 between 80 °C (176 °F) and 100 °C (212 °F).
 MAP SENSOR less than 46.6 kPa (350 mmHg, 14 in.Hg).
 Vehicle speed (VSS) 0 km/h (0 mph).
 IAT SENSOR between 0 °C (32 °F) and 100 °C (212 °F).
1. Connect the HDS to the DLC.
2. Start the engine.
3. Select EVAP TEST in the INSPECTION MENU with the HDS, then select the FUNCTION TEST in the
EVAP TEST MENU.
 If the result is normal, readiness is complete.
 If the result is not normal, go to the next step.
4. Check for a Temporary DTC. If there is no DTC, one or more of the enable criteria were probably not
met; repeat the procedure. NOTE:
 Do not turn the ignition switch to LOCK (0) or ACC (I) during the procedure.
 All readiness codes are cleared when the battery is disconnected, if the DTCs have been cleared, or if the
ECM/PCM is reset with the HDS.
ECT SENSOR 1 at 60 °C (140 °F) or more. 1. Start the engine.
2. Test-drive the vehicle under stop-and-go conditions with short periods of steady cruise. During the
drive, decelerate (with the throttle fully closed) for
5 seconds. After about 5.6 km (3.5 miles), the
readiness code should switch from incomplete to
complete.
3. Check the readiness codes screen for the air fuel ratio (A/F) sensor in the DTCs MENU with the HDS.
 If the screen shows complete, readiness is complete.
 If the screen shows not complete, go to the next step.
4. Check for a Temporary DTC. If there is no DTC, the enable criteria was probably not met. Select the
DATA LIST MENU. Check the ECT SENSOR 1 in the
ALL DATA LIST with the HDS. If the ECT SENSOR 1
is less than 60 °C (140 °F), run the engine until it is
more than 60 °C (140 °F), then repeat the procedure.
08/08/21 14:15:32 61SNR030_110_0070
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Air Fuel Ratio (A/F) Sensor Heater Monitor
Readiness Code
Misfire Monitor and Readiness Code
Fuel System Monitor and Readiness Code
Comprehensive Component Monitor and
Readiness CodeEGR Monitor and Readiness Code
Procedure
Enable Criteria
Procedure
11-71
NOTE: All readiness codes are cleared when the battery
is disconnected, if the DTCs have been cleared, or if the
ECM/PCM is reset with the HDS.
1. Start the engine, and let it idle for 1 minute. The readiness code should switch from incomplete to
complete.
2. If the readiness code is still not set to complete, check for a Temporary DTC. If there is no DTC,
repeat the procedure.
 This readiness code is always set to available because misfiring is continuously monitored.
 Monitoring pauses, and the misfire counter resets, if the vehicle is driven over a rough road.
 Monitoring also pauses, and the misfire counter holds at its current value, if the throttle position
changes more than a predetermined value, or if
driving conditions fall outside the range of any
related enable criteria.
 This readiness code is always set to available because the fuel system is continuously monitored
during closed loop operation.
 Monitoring pauses when the catalytic converter, EVAP control system, and A/F sensor monitors are
active.
 Monitoring also pauses when any related enable criteria are not being met. Monitoring resumes when
the enable criteria is again being met.
This readiness code is always set to available because
the comprehensive component monitor is continuously
running when ever the engine is cranking or running. NOTE:
 Do not turn the ignition switch to LOCK (0) or ACC (I) during the procedure.
 All readiness codes are cleared when the battery is disconnected, if the DTCs have been cleared, or if the
ECM/PCM is reset with the HDS.
ECT SENSOR 1 at 80 °C (176 °F) or more. 1. Connect the HDS to the DLC.
2. Start the engine.
3. Drive at a steady speed with the A/T in D position or M/T in 4th gear, at 80 100 km/h (50 62 mph) or
above for more than 10 seconds.
4. With the A/T in D position or M/T in 4th gear, decelerate from 100 km/h (62 mph) or above by
completely releasing the throttle for at least
5 seconds. If the engine is stopped during this
procedure, go to step 3 and do the procedure again.
5. Check the OBD status screen for DTC P0401 in the DTC’s MENU with the HDS.
 If it is PASSED, readiness is complete.
 If it is not PASSED, go to step 3 and retest.
08/08/21 14:15:32 61SNR030_110_0071
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YES
NO
YES
NO YES
NO
11-76PGM-FI System
DTC Troubleshooting (cont’d)
MAF SENSOR/IAT SENSOR 5P CONNECTOR
IG1
(BLK/YEL)
MAF SENSOR/IAT SENSOR 5P CONNECTOR VG (RED/BLK) ECM/PCM CONNECTOR B (44P)
VG (RED/BLK)
7. Measure the voltage between MAF sensor/IATsensor 5P connector terminal No. 3 and body
ground.
Go to step 8.
Repair open in the wire between the No. 3
ALTERNATOR (10 A) fuse and the MAF sensor/IAT
sensor,thengotostep20.
8. Turn the ignition switch to LOCK (0).
9. Measure the resistance between MAF sensor/IAT sensor 5P connector terminal No. 1 and body
ground.
Go to step 14.
Go to step 10. 10. Jump the SCS line with the HDS.
11. Disconnect ECM/PCM connector B (44P).
12. Check for continuity between ECM/PCM connector
terminal B30 and body ground.
Repair short in the wire between the ECM/
PCM (B30) and the MAF sensor/IAT sensor, then go
to step 21.
Go to step 13.
Wire side of female terminals
Wire side of female terminals Terminal side of female terminals
Is there battery voltage?
Is there 190 210 k ? Is there continuity?
08/08/21 14:15:38 61SNR030_110_0076
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YES
NO
11-111
SECONDARY HO2S (SENSOR 2) 4P CONNECTOR
SO2SHTC (PNK) IG1 (YEL) ECM/PCM CONNECTOR B (44P)
SO2SHTC (BLK/WHT)
SECONDARY HO2S (SENSOR 2) 4P CONNECTOR IG1 (YEL)
10. Turn the ignition switch to ON (II).
11. Measure the voltage between secondary HO2S(Sensor 2) 4P connector terminals No. 3 and No. 4.
Go to step 12.
Go to step 16.
12. Turn the ignition switch to LOCK (0).
13. Jump the SCS line with the HDS.
14. Disconnect ECM/PCM connector B (44P). 15. Check for continuity between ECM/PCM connector
terminal B4 and body ground.
Repair short in the wire between the ECM/
PCM (B4) and the secondary HO2S (Sensor 2), then
go to step 23.
Go to step 29.
16. Measure the voltage between secondary HO2S (Sensor 2) 4P connector terminal No. 4 and body
ground.
Go to step 17.
Repair open in the wire between the
secondary HO2S (Sensor 2) and the No. 3
ALTERNATOR (10 A) fuse, then go to step 23.
(cont’d)
Terminal side of male terminals Terminal side of female terminals
Terminal side of male terminals
Is there battery voltage? Is there continuity?
Is there battery voltage?
08/08/21 14:17:23 61SNR030_110_0111
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YES
NO
YES
NO
11-120PGM-FI System
DTC Troubleshooting (cont’d)
IGNITION COIL 3P CONNECTOR
IG1 (BLK/WHT) IGNITION COIL 3P CONNECTOR
GND
(BLK)
27. Determine which cylinder had the misfire.
Replace the faulty injector (see page 11-219),
then go to step 60.
Go to step 28.
28. Turn the ignition switch to LOCK (0).
29. Disconnect the ignition coil 3P connector from the problem cylinder.
30. Turn the ignition switch to ON (II).
31. Measure the voltage between ignition coil 3P connector terminal No. 3 and body ground.
Go to step 32.
Repair open in the wire between the ignition
coil and the ignition coil relay, then go to step 60. 32. Turn the ignition switch to LOCK (0).
33. Check for continuity between ignition coil 3P
connector terminal No. 2 and body ground.
Go to step 34.
Repair open in the wire between the ignition
coil and G101, then go to step 60.
Wire side of female terminals Wire side of female terminals
Does the misf ir e occur in the cylinder wher e the
i nj ect or w as ex changed ?
Is there battery voltage? Is there continuity?
08/08/21 14:17:26 61SNR030_110_0120
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NO
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NO
PROBLEM
CYLINDER
DTC ECM/PCM
TERMINAL WIRE
COLOR
YES
NO
11-122 PGM-FI System
DTC Troubleshooting (cont’d)
ECM/PCM CONNECTOR C (44P)
INJ4 (YEL)
INJ1 (BRN) INJ2 (RED) INJ3 (BLU)
39. Reconnect all connectors.
40. Do an engine compression and a cylinder leakdown
test (see page 6-7).
Go to step 41.
Repair the engine, then go to step 60.
41. Do the VTEC rocker arm test; K20Z2 engine (see page 6-8), K20Z3 engine (see page 6-9).
Go to step 42.
Repair the VTEC rocker arm; K20Z2 engine
(see page 6-46), K20Z3 engine (see page 6-47), then
go to step 60.
42. Turn the ignition switch to LOCK (0).
43. Jump the SCS line with the HDS.
44. Disconnect ECM/PCM connector C (44P).
45. Turn the ignition switch to ON (II). 46. Measure the voltage between body ground and the
appropriate ECM/PCM connector terminal of the
problem cylinder (see table).
No. 1 P0301 C5 BRN
No. 2 P0302 C6 RED
No. 3 P0303 C7 BLU
No. 4 P0304 C8 YEL
Go to step 54.
Go to step 47.
Terminal side of female terminals
Di d t he engi ne pass bot h t est s?
Di d t he engi ne pass t he t est ?
Is there battery voltage?
08/08/21 14:18:51 61SNR030_110_0122
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YES
NO PROBLEM
CYLINDER
DTC ECM/PCM
TERMINAL WIRE
COLOR
YES
NO
11-123
INJECTOR 2P CONNECTOR IGP
(YEL/BLK) ECM/PCM CONNECTOR C (44P)
INJ4 (YEL)
INJ1 (BRN) INJ2 (RED) INJ3 (BLU)
47. Turn the ignition switch to LOCK (0).
48. Disconnect the injector 2P connector from the
problem cylinder.
49. Turn the ignition switch to ON (II).
50. Measure the voltage between injector 2P connector terminal No. 1 and body ground.
Go to step 51.
Repair open in the wire between the injector
and PGM-FI main relay 1, then go to step 60.
51. Turn the ignition switch to LOCK (0). 52. Check for continuity between body ground and the
appropriate ECM/PCM connector terminal of the
problem cylinder (see table).
No. 1 P0301 C5 BRN
No. 2 P0302 C6 RED
No. 3 P0303 C7 BLU
No. 4 P0304 C8 YEL
Repair short in the wire between the ECM/
PCM and the injector, then go to step 60.
Go to step 53.
(cont’d)
Wire side of female terminals Terminal side of female terminals
Is there battery voltage?Is there continuity?
08/08/21 14:18:51 61SNR030_110_0123
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NO
YES
NO
YES
NO
YES
NO
DTC P0335:
11-12811-128PGM-FI System
DTC Troubleshooting (cont’d)
CKP SENSOR 3P CONNECTOR
IGP (YEL/BLK)
21. Update the ECM/PCM if it does not have the latestsoftware (see page 11-227), or substitute a known-
good ECM/PCM (see page 11-7).
22. Hold the engine speed between 3,000 4,000 rpm for at least 10 seconds.
23. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the knock sensor and the ECM/PCM. If
the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then go to step 22.
If the ECM/PCM was substituted, go to step 1.
Go to step 24.
24. Monitor the OBD STATUS for DTC P0325 in the DTCs MENU with the HDS.
If the ECM/PCM was updated,
troubleshooting is complete. If the ECM/PCM was
substituted, replace the original ECM/PCM
(see page 11-228). If any other Temporary DTCs or
DTCs were indicated in step 23, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the knock sensor
and the ECM/PCM. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 22. If the ECM/PCM was substituted,
go to step 1. If the screen indicates NOT
COMPLETED, go to step 22. NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Start the engine.
4. Check for Temporary DTCs or DTCs with the HDS.
Go to step 5.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the CKP sensor and the ECM/PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect the CKP sensor 3P connector.
7. Turn the ignition switch to ON (II).
8. Measure the voltage between CKP sensor 3P connector terminal No. 3 and body ground.
Go to step 9.
Repair open in the wire between the CKP
sensor and PGM-FI main relay 1, then go to step 19.CKP Sensor No Signal
Wire side of female terminals
I s DT C P0325 i nd i cat ed ?
Does t he scr een i nd i cat e PASSE D? Is DT C P0335 ind icated ?
Is there battery voltage?
08/08/21 14:18:53 61SNR030_110_0128
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