lights ACURA CSX 2006 Service User Guide
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Page 489 of 2893
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DTC P16BC:
YES
NO
YES
NO YES
NO
YES
NO
11-166PGM-FI System
DTC Troubleshooting (cont’d)
ALTERNATOR 4P CONNECTOR
IG1
(BLK/YEL)
Alternator FR Terminal Circuit/
IGP Circuit Low Voltage
NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
1. Check for poor connections or loose terminals at the alternator 4P connector.
Go to step 2.
Repair the connections or the terminals, then
go to step 18.
2. Check the alternator mounting surfaces for corrosion.
Remove the alternator (see page 4-34). Clean
all mounting surface and reinstall the alternator,
then go to step 18.
Go to step 3.
3. Turn the ignition switch to ON (II).
4. Clear the DTC with the HDS.
5. Start the engine.
6. Check under these conditions: A/Con
Temperature control at maximum cool
Blower fan at maximum speed
Rear window defogger on
Headlights on high beam
7. Hold the engine speed at 2,000 rpm (A/T in P or N, M/T in neutral) for 1 minute. 8. Check for Temporary DTCs or DTCs with the HDS.
Go to step 9.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the alternator.
9. Turn the ignition switch to LOCK (0).
10. Disconnect the alternator 4P connector.
11. Turn the ignition switch to ON (II).
12. Measure the voltage between alternator 4P connector terminal No. 1 and body ground.
Go to step 13.
Repair open in the wire between the
alternator (IG1 line) and the No. 3 ALTERNATOR
(10 A) fuse in the under-dash fuse/relay box, then
go to step 18.
Wire side of female terminals
Ar e t he connect i ons and t he t er mi nal OK ?
Ar e t he mount i ng sur f aces cor r od ed ? Is DTC P16BC indicated?
Is there battery voltage?
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NO
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11-167
ALTERNATOR 4P CONNECTOR
ALTF
(WHT/RED) ECM/PCM CONNECTOR B (44P)
ALTF (WHT/RED)
ALTERNATOR 4P CONNECTOR
ALTF (WHT/RED)
13. Measure the voltage between alternator 4Pconnector terminal No. 4 and body ground.
Replace the alternator (see page 4-34), then
go to step 18.
Go to step 14.
14. Turn the ignition switch to LOCK (0).
15. Jump the SCS line with the HDS.
16. Disconnect ECM/PCM connector B (44P). 17. Check for continuity between alternator 4P
connector terminal No. 4 and ECM/PCM connector
terminal B43.
Go to step 27.
Repair open in the wire between the ECM/
PCM (B43) and the alternator, then go to step 18.
18. Turn the ignition switch to LOCK (0).
19. Reconnect all connectors.
20. Turn the ignition switch to ON (II).
21. Reset the ECM/PCM with the HDS.
22. Do the ECM/PCM idle learn procedure (see page 11-310).
23. Start the engine.
24. Check under these conditions: A/Con
Temperature control at maximum cool
Blower fan at maximum speed
Rear window defogger on
Headlights on high beam
(cont’d)
Wire side of female terminals Wire side of female terminals
Terminal side of female terminals
Is t her e about 5 V ? Is there continuity?
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YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
DTC P2183:
11-16811-168PGM-FI System
DTC Troubleshooting (cont’d)
25. Hold the engine speed at 2,000 rpm (A/T in P or N,
M/T in neutral) for 1 minute.
26. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the alternator and the ECM/PCM, then
go to step 1.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.
27. Reconnect all connectors.
28. Update the ECM/PCM if it does not have the latest software (see page 11-227), or substitute a known-
good ECM/PCM (see page 11-7).
29. Start the engine.
30. Check under these conditions: A/Con
Temperature control at maximum cool
Blower fan at maximum speed
Rear window defogger on
Headlights on high beam
31. Hold the engine speed at 2,000 rpm (A/T in P or N, M/T in neutral) for 1 minute.
32. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the alternator and the ECM/PCM. If the
ECM/PCM was updated, substitute a known-good
ECM/PCM (see page 11-7), then go to step 29. If the
ECM/PCM was substituted, go to step 1.
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 are indicated,
go to the indicated DTC’s troubleshooting. NOTE:
Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).
If DTC P0111 is stored at the same time as DTC P2183, troubleshoot DTC P0111 first, then recheck for DTC
P2183.
1. Check for poor connections or loose terminals at ECT sensor 1 and ECT sensor 2.
Go to step 2.
Repair the connections or the terminals, then
go to step 27.
2. Turn the ignition switch to ON (II).
3. Check for Temporary DTCs or DTCs with the HDS.
Go to step 15.
Go to step 4.
4. Start the engine, and let it idle for 10 minutes.
5. Check ECT SENSOR 2 in the DATA LIST with the HDS.
ReplaceECTsensor2(seepage11-225),then
go to step 27.
Go to step 6.
6. Turn the ignition switch to LOCK (0).
7. Drain the coolant (see page 10-8).
8. Remove ECT sensor 2 (see page 11-225).
9. Allow ECT sensor 2 to cool to ambient temperature.
10. Note the ambient temperature.ECT Sensor 2 Circuit Range/
Performance Problem
Is DTC P16BC indicated?
Is DTC P16BC indicated? Ar e t he connect i ons and t he t er mi nal s OK ?
Ar e DT C P 1116 and P 2 183 i nd i cat ed at t he sametime?
I s about 60 ° C ( 140 ° F ) or l ess i nd i cat ed ?
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Special Tools Required
11-227
ECM/PCM Update
A
Honda diagnostic system (HDS) tablet tester
Honda interface module (HIM) and an iN workstation
with the latest HDS software version
HDS pocket tester
GNA 600 and iN workstation with the latest HDS software version
Any one of the above updating tools can be used.
NOTE: Make sure the HDS/iN workstation has the latest HDS software version.
Before you update the ECM/PCM, make sure the battery in the vehicle is fully charged, and connect a
jumper battery (not a battery charger) to maintain
system voltage.
Never turn the ignition switch to LOCK (0) or ACC (I) during the update. If there is a problem with the
update, l eave the ignition switch to ON (II).
To prevent ECM/PCM damage, do not operate anything electrical (headlights, audio system, brakes,
A/C, power windows, moonroof (if equipped), door
locks, etc.) during the update.
To ensure the latest program is installed, do an ECM/ PCM update when ever the ECM/PCM is substituted or
replaced.
You cannot update an ECM/PCM with a program it already has. It will only accept a new program.
High temperature in the engine compartment might cause the ECM/PCM to become too hot to run the
update. If the engine was running before this
procedure, open the hood, and cool the engine
compartment.
If you need to diagnose the Honda interface module (HIM) because the HIM’s red ( 3) light came on or
was flashing during the update, l eave the ignition
switch in ON (II) when you disconnect the HIM from
the data link connector (DLC). This will pr event ECM/
PCM damage. 1. Turn the ignition switch to ON (II), but do not start
the engine.
2. Connect the HDS to the data link connector (DLC) (A) located under the driver’s side of the dashboard.
3. Make sure the HDS communicates with the ECM/ PCM. If it doesn’t, go to the DLC circuit
troubleshooting (see page 11-204). If you are
returning from the DLC circuit troubleshooting, skip
steps 4 to 5 and clean the throttle body after
updating the ECM/PCM (see page 11- 344).
4. Select the INSPECTION MENU with the HDS.
5. Select the ETCS TEST, then select the TP POSITION CHECK, and follow the HDS screen prompts.
NOTE: If the TP POSITION CHECK indicates FAILED,
continue this procedure.
6. Exit the HDS diagnostic system, then select the update mode, and follow the screen prompts to
update the ECM/PCM.
(cont’d)
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YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
11-299
14. Monitor the OBD STATUS for DTC P0506 in the
DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 13,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, go to step 19. If
the screen indicates EXECUTING, keep idling until
a result comes on. If the screen indicates OUT OF
CONDITION, go to step 11.
15. Remove the intake air duct from the throttle body; K20Z2 engine (see page 11-348), K20Z3 engine
(see page 11-349).
16. Check for dirt, carbon, or damage in the throttle bore.
If there is dirt or carbon, clean the throttle
body (see page 11- 344). Also check for damage to
the air cleaner element (see page 11-346), then go
to step 9. If there is damage in the throttle bore, go
to step 8.
Go to step 17.
17. Recheck with different load conditions (turn on the headlights, blower motor, rear window defogger
and/or A/C, change the gear position, etc.).
18. Monitor the OBD STATUS for DTC P0506 in the DTCs MENU with the HDS.
Intermittent failure, the system is OK at this
time.
If the screen indicates FAILED, check the A/C
system and/or the charging system, then go to step
1 and recheck. If the screen indicates EXECUTING,
keep idling until a result comes on. If the screen
indicates OUT OF CONDITION, go to step 17. 19. Update the ECM/PCM if it does not have the latest
software (see page 11-227), or substitute a known-
good ECM/PCM (see page 11-7).
20. Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle.
21. Check under these DATA LIST conditions with the HDS:
ECTSENSOR1above70°C(156°F)
IAT SENSOR above 0 °C (32 °F)
VSSis0km/h(0mph)
ST FUEL TRIM between 0.69 1.47
FSS is CLOSED
22. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the throttle body and the ECM/PCM. If
the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then go to step 20.
If the ECM/PCM was substituted, go to step 1.
Go to step 23.
23. Monitor the OBD STATUS for DTC P0506 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 22, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the throttle body
and the ECM/PCM. If the ECM/PCM was updated,
substitute a known-good ECM/PCM (see page 11-7),
then go to step 20. If the ECM/PCM was substituted,
go to step 1. If the screen indicates EXECUTING,
keep idling until a result comes on. If the screen
indicates OUT OF CONDITION, go to step 20.
Does t he scr een i nd i cat e PASSE D?
Is there dirt, carbon, or damage in the throttlebor e?
Does t he scr een i nd i cat e PASSE D? Is DT C P0506 ind icated ?
Does t he scr een i nd i cat e PASSE D?
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DTC P0507:
YES
NO
YES
NO YES
NO
YES
NO
11-300Idle Control System
DTC Troubleshooting (cont’d)
Idle Control System RPM Higher
Than Expected
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. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle for at least 20 seconds.
4. Monitor the OBD STATUS for DTC P0507 in the DTCs MENU with the HDS.
Go to step 5.
If the screen indicates PASSED, intermittent
failure, the system is OK at this time. If the screen
indicates EXECUTING, keep idling until a result
comes on. If the screen indicates OUT OF
CONDITION, recheck with different load conditions
(electrical, A/C, gear position, etc.), then go to
step 3.
5. Check for vacuum leaks at these parts: PCV valve
PCV hose
EVAP canister purge valve
Throttle body
Intake manifold
Brake booster hose
Brake booster
Repair or replace the leaking part(s), then go
to step 6.
Go to step 6. 6. Turn the ignition switch to ON (II).
7. Reset the ECM/PCM with the HDS.
8. Do the ECM/PCM idle learn procedure (see page
11-310).
9. Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle for at least 20 seconds.
10. Check for Temporary DTCs or DTCs with the HDS.
Go to step 12.
Go to step 11.
11. Monitor the OBD STATUS for DTC P0507 in the DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 10,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the throttle body
and the ECM/PCM, then go to step 1. If the screen
indicates EXECUTING, keep idling until a result
comes on. If the screen indicates OUT OF
CONDITION, recheck with different load conditions
(turn on the headlights, blower motor, or A/C;
change the gear position, etc.), then go to step 9.
Does t he scr een i nd i cat e F AILE D?
Ar e t her e any l eak s? Is DT C P0507 ind icated ?
Does t he scr een i nd i cat e PASSE D?
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11-30911-309
Idle Speed Inspection
BRAKE PEDAL POSITION SWITCH
4P CONNECTOR
BKSW
(LT GRN)JUMPER WIRE
ECM/PCM CONNECTOR A (44P) BKSW (LT GRN) A
9. Connect brake pedal position switch 4P connector
terminal No. 2 to body ground with a jumper wire.
10. Check for continuity between ECM/PCM connector terminal A40 and body ground.
Repair open in the wire between the brake
pedal position switch and the No. 12 HORN/STOP
(15 A) fuse. Also, inspect the brake pedal position
switch (see page 19-6).
Repair open in the wire between the ECM/
PCM (A40) and the brake pedal position switch. NOTE:
Before checking the idle speed, check these items: – The malfunction indicator lamp (MIL) has not been reported on, and there are no DTCs.
– Ignition timing
– Spark plugs
– Air cleaner
– PCV system
Apply the parking brake, and make sure the headlights are off.
1. Disconnect the evaporative emission (EVAP) canister purge valve connector (see step 5 on page
11-409).
2. Connect the HDS to the data link connector (DLC) (A) located under the driver’s side of the dashboard.
3. Make sure the HDS communicates with the ECM/ PCM. If it doesn’t, go to the DLC circuit
troubleshooting (see page 11-204).
(cont’d)
Wire side of female terminals
Terminal side of female terminals
Is there continuity?
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11-30911-309
Idle Speed Inspection
BRAKE PEDAL POSITION SWITCH
4P CONNECTOR
BKSW
(LT GRN)JUMPER WIRE
ECM/PCM CONNECTOR A (44P) BKSW (LT GRN) A
9. Connect brake pedal position switch 4P connector
terminal No. 2 to body ground with a jumper wire.
10. Check for continuity between ECM/PCM connector terminal A40 and body ground.
Repair open in the wire between the brake
pedal position switch and the No. 12 HORN/STOP
(15 A) fuse. Also, inspect the brake pedal position
switch (see page 19-6).
Repair open in the wire between the ECM/
PCM (A40) and the brake pedal position switch. NOTE:
Before checking the idle speed, check these items: – The malfunction indicator lamp (MIL) has not been reported on, and there are no DTCs.
– Ignition timing
– Spark plugs
– Air cleaner
– PCV system
Apply the parking brake, and make sure the headlights are off.
1. Disconnect the evaporative emission (EVAP) canister purge valve connector (see step 5 on page
11-409).
2. Connect the HDS to the data link connector (DLC) (A) located under the driver’s side of the dashboard.
3. Make sure the HDS communicates with the ECM/ PCM. If it doesn’t, go to the DLC circuit
troubleshooting (see page 11-204).
(cont’d)
Wire side of female terminals
Terminal side of female terminals
Is there continuity?
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Idle speed should be:
K20Z2 engine:
M/T 700 50 rpm
A/T 800 50 rpm (in P or N)
K20Z3 engine: M/T 750 50 rpm
Idle speed should be:
K20Z2 engine: M/T 780 50 rpm
A/T 800 50 rpm (in P or N)
K20Z3 engine: M/T 750 50 rpm
Procedure
11-31011-310Idle Control System
Idle Speed Inspection (cont’d) ECM/PCM Idle Learn Procedure
4. Start the engine. Hold the engine speed at
3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle.
5. Check the idle speed without load conditions: headlights, blower fan, radiator fan, and air
conditioner off.
6. Let the engine idle for 1 minute with high electric load (A/C switch on, temperature set to max cool,
blower fan on high, and headlights on high beam).
NOTE: If the idle speed is not within specification,
dotheECM/PCMidlelearnprocedure(seepage
11-310). If the idle speed is still not within
specification, go to the symptom troubleshooting.
7. Reconnect the EVAP canister purge valve connector. The idle learn procedure must be done so the ECM/PCM
can learn the engine idle characteristics.
Do the idle learn procedure whenever you do any of
these actions:
Replace the ECM/PCM.
Reset the ECM/PCM.
Update the ECM/PCM.
Replace or clean the throttle body.
Disassemble the engine or the transmission.
NOTE: Erasing DTCs with the HDS does not require you
to do the idle learn procedure.
1. Make sure all electrical items (A/C, audio, lights, etc.) are off.
2. Reset the ECM/PCM with the HDS.
3. Turn the ignition switch to ON (II), and wait 2 seconds.
4. Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, or until the
engine coolant temperature reaches 90 °C (194 °F).
5. Let the engine idle for about 5 minutes with the throttle fully closed.
NOTE: If the radiator fan comes on, do not include
its running time in the 5 minutes.
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Idle speed should be:
K20Z2 engine:
M/T 700 50 rpm
A/T 800 50 rpm (in P or N)
K20Z3 engine: M/T 750 50 rpm
Idle speed should be:
K20Z2 engine: M/T 780 50 rpm
A/T 800 50 rpm (in P or N)
K20Z3 engine: M/T 750 50 rpm
Procedure
11-31011-310Idle Control System
Idle Speed Inspection (cont’d) ECM/PCM Idle Learn Procedure
4. Start the engine. Hold the engine speed at
3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, then let it
idle.
5. Check the idle speed without load conditions: headlights, blower fan, radiator fan, and air
conditioner off.
6. Let the engine idle for 1 minute with high electric load (A/C switch on, temperature set to max cool,
blower fan on high, and headlights on high beam).
NOTE: If the idle speed is not within specification,
dotheECM/PCMidlelearnprocedure(seepage
11-310). If the idle speed is still not within
specification, go to the symptom troubleshooting.
7. Reconnect the EVAP canister purge valve connector. The idle learn procedure must be done so the ECM/PCM
can learn the engine idle characteristics.
Do the idle learn procedure whenever you do any of
these actions:
Replace the ECM/PCM.
Reset the ECM/PCM.
Update the ECM/PCM.
Replace or clean the throttle body.
Disassemble the engine or the transmission.
NOTE: Erasing DTCs with the HDS does not require you
to do the idle learn procedure.
1. Make sure all electrical items (A/C, audio, lights, etc.) are off.
2. Reset the ECM/PCM with the HDS.
3. Turn the ignition switch to ON (II), and wait 2 seconds.
4. Start the engine. Hold the engine speed at 3,000 rpm without load (A/T in P or N, M/T in
neutral) until the radiator fan comes on, or until the
engine coolant temperature reaches 90 °C (194 °F).
5. Let the engine idle for about 5 minutes with the throttle fully closed.
NOTE: If the radiator fan comes on, do not include
its running time in the 5 minutes.
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