fuse ACURA CSX 2006 Service Manual PDF

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DTC P1659:
11-24311-243
F
12. Turn the ignition switch to LOCK (0).
13. Reconnect all connectors.
14. Turn the ignition switch to ON (II).
15. Reset the ECM/PCM with the HDS.
16. Do the ECM/PCM idle learn procedure (see page
11-310).
17. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the ETCS control relay 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.
18. Turn the ignition switch to LOCK (0).
19. Reconnect all connectors.
20. 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).
21. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the ETCS control relay and the
ECM/PCM. If the ECM/PCM was updated, substitute
a known-good ECM/PCM (see page 11-7), then
recheck. 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).
1. Turn the ignition switch to ON (II).
2. Clear the DTC with the HDS.
3. Check for Temporary DTCs or DTCs with the HDS.
Go to step 4.
Intermittent failure, the system is OK at this
time. Check for poor connections or loose terminals
at the ETCS control relay and the ECM/PCM.
4. Turn the ignition switch to LOCK (0).
5. Check the No. 21 DBW (THROTTLE ACTUATOR CONTROL) (15 A) fuse in the under-hood fuse/relay
box.
Go to step 6.
Go to step 17.
6. Remove the ETCS control relay (F) from the under- hood fuse/relay box.
(cont’d)ETCS Control Relay OFF
Malfunction
Is DTC P1658 indicated?
Is DTC P1658 indicated? Is DTC P1659 indicated?
IsthefuseOK?
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11-244Electronic Throttle Control System
DTC Troubleshooting (cont’d)
ETCS CONTROL RELAY 4P CONNECTOR
IGP B
ETCS CONTROL RELAY 4P CONNECTOR
7. Test the ETCS control relay (see page 22-70).
Go to step 8.
Replace the ETCS control relay, then go to
step 23.
8. Turn the ignition switch to ON (II).
9. Measure the voltage between ETCS control relay 4P connector terminal No. 4 and body ground.
Go to step 10.
Replace the under-hood fuse/relay box
(see page 22-65), then go to step 22. 10. Measure the voltage between ETCS control relay
4P connector terminal No. 1 and body ground.
Go to step 11.
Replace the under-hood fuse/relay box
(see page 22-65), then go to step 22.
11. Turn the ignition switch to LOCK (0).
12. Jump the SCS line with the HDS.
13. Disconnect ECM/PCM connector C (44P).
Terminal side of female terminals Terminal side of female terminals
I s t he E T CS cont r ol r el ay OK ?
Is there battery voltage? Is there battery voltage?
08/08/21 14:26:41 61SNR030_110_0244
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11-246Electronic Throttle Control System
DTC Troubleshooting (cont’d)
F
ECM/PCM CONNECTOR C (44P)IG1ETCS (WHT) B
ETCS CONTROL RELAY 4P CONNECTOR
17. Remove the ETCS control relay (F) from the under-
hood fuse/relay box.
18. Jump the SCS line with the HDS.
19. Disconnect ECM/PCM connector C (44P).
20. Check for continuity between ECM/PCM connector terminal C1 and body ground.
Repair short in the wire between the ECM/
PCM (C1) and the ETCS control relay, then go to
step 23.
Go to step 21. 21. Check for continuity between ETCS control relay 4P
connector terminal No. 1 and body ground.
Replace the under-hood fuse/relay box
(see page 22-65), then go to step 23.
Go to step 28.
22. Turn the ignition switch to LOCK (0).
23. Reconnect all connectors.
24. Turn the ignition switch to ON (II).
25. Reset the ECM/PCM with the HDS.
26. Do the ECM/PCM idle learn procedure (see page 11-310).
27. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the ETCS control relay 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.
Terminal side of female terminals Terminal side of female terminals
Is there continuity?
Is there continuity?
Is DTC P1659 indicated?
08/08/21 14:26:43 61SNR030_110_0246
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DTC P0340:
11-27811-278VTEC/VTC
DTC Troubleshooting (cont’d)
CMP SENSOR A 3P CONNECTOR
IG1 (BLK/YEL)
21. Monitor the OBD STATUS for DTC P0011 in theDTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 20,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the VTC oil
control solenoid valve and the ECM/PCM, then go
to step 1. If the screen indicates NOT COMPLETED,
go to step 19 and recheck. 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 CMP sensor A and the ECM/PCM.
5. Turn the ignition switch to LOCK (0).
6. Disconnect CMP sensor A 3P connector.
7. Turn the ignition switch to ON (II).
8. Measure the voltage between CMP sensor A 3P connector terminal No. 3 and body ground.
Go to step 9.
Repair open in the wire between CMP sensor
A and the No. 3 ALTERNATOR (10 A) fuse then go
to step 18.CMP Sensor A No Signal
Wire side of female terminals
Does t he scr een i nd i cat e PASSE D?
I s DT C P0340 i nd i cat ed ?
Is there battery voltage?
08/08/21 14:28:22 61SNR030_110_0278
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11-308Idle Control System
Brake Pedal Position Switch Signal Circuit Troubleshooting
ECM/PCM CONNECTOR A (44P)
BKSW (LT GRN)
1. Turn the ignition switch to ON (II).
2. Check the BRAKE SWITCH in the DATA LIST withthe HDS.
Go to step 3.
Inspect the brake pedal position switch
(see page 19-6).
3. Press the brake pedal while checking the BRAKE SWITCH in the DATA LIST with the HDS.
The brake pedal position switch signal circuit
(BKSW line) is OK.
Go to step 4.
4. Turn the ignition switch to LOCK (0).
5. Jump the SCS line with the HDS.
6. Disconnect the brake pedal position switch 4P connector.
7. Disconnect ECM/PCM connector A (44P). 8. Check for continuity between ECM/PCM connector
terminal A40 and body ground.
Repair short in the wire between the ECM/
PCM (A40) and the No. 12 HORN/STOP (15 A) fuse.
Also, replace the No. 12 HORN/STOP (15 A) fuse.
Go to step 9.
Terminal side of female terminals
Does it indicate OFF?
Does i t change t o ON ? Is there continuity?
08/08/21 14:29:37 61SNR030_110_0308
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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?
08/08/21 14:29:38 61SNR030_110_0309
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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?
08/08/21 14:29:38 61SNR030_110_0309
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11-318 Fuel Supply System
Fuel Pump Circuit Troubleshooting
A
PGM-FI MAIN RELAY 2 (FUEL PUMP) 4P CONNECTOR IGP UNDER-DASH FUSE/RELAY BOX CONNECTOR G (21P)
IGP (ORN)
JUMPER WIRE
UNDER-HOOD FUSE/RELAY BOX CONNECTOR E (10P) IGP (ORN)
If you suspect a problem with the fuel pump, check that
the fuel pump actually runs; when it is on, you will hear
some noise if you listen to the fuel fill port with the fuel
fill cap removed. The fuel pump should run for
2 seconds when the ignition switch is first turned on. If
the fuel pump does not make noise, check as follows:1. Turn the ignition switch to LOCK (0).
2. Remove the under-dash fuse/relay box (see page 22-66), then remove PGM-FI main relay 2 (FUEL
PUMP) (A) from the under-dash fuse/relay box.
3. Reinstall the under-dash fuse/relay box.
4. Turn the ignition switch to ON (II).
5. Measure the voltage between PGM-FI main relay 2 (FUEL PUMP) 4P connector terminal No. 4 and
body ground. Go to step 12.
Go to step 6.
6. Turn the ignition switch to LOCK (0).
7. Disconnect the under-hood fuse/relay box connector E (10P).
8. Disconnect the C101 connector at left side of engine compartment (see page 22-16).
9. Disconnect under-dash fuse/relay box connector G (21P).
10. Connect under-dash fuse/relay box connector G (21P) terminal No. 4 to body ground with a jumper
wire.
11. Check for continuity between under-hood fuse/ relay box connector E (10P) terminal No. 5 and
body ground.
Terminal side of female terminals Wire side of female terminals
Wire side of female terminals
Is there battery voltage?
08/08/21 14:29:45 61SNR030_110_0318
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11-319
PGM-FI MAIN RELAY 2 (FUEL PUMP) 4P CONNECTORIG1 PGM-FI MAIN RELAY 2 (FUEL PUMP) 4P CONNECTOR
IMOFPRJUMPER WIRE
IMOFPR (BRN)
ECM/PCM CONNECTOR A (44P)
 Replace PGM-FI main relay 1.
 If needed, replace the under-hood fuse/relay box
(see page 22-65).
Repair open in the wire between the under-
hood fuse/relay box and the under-dash fuse/relay
box.
12. Measure the voltage between PGM-FI main relay 2 (FUEL PUMP) 4P connector terminal No. 1 and
body ground.
Go to step 13.
 ChecktheNo.2FUELPUMP(15A)fuseinthe under-dash fuse/relay box.
 If needed, replace the under-dash fuse/relay box (see page 22-66).
13. Turn the ignition switch to LOCK (0). 14. Connect PGM-FI main relay 2 (FUEL PUMP) 4P
connector terminal No. 3 to body ground with a
jumper wire.
15. Jump the SCS line with the HDS.
16. Disconnect ECM/PCM connector A (44P).
17. Check for continuity between body ground and ECM/PCM connector terminal A15.
Go to step 18.
Repair open in the wire between PGM-FI main
relay 2 (FUEL PUMP) and the ECM/PCM (A15).
18. Remove the under-dash fuse/relay box (see page 22-66), then reinstall PGM-FI main relay 2 (FUEL
PUMP).
19. Reinstall the under-dash fuse/relay box (see page 22-66).
(cont’d)
Terminal side of female terminals Terminal side of female terminals
Terminal side of female terminals
Is there continuity?
Is there battery voltage? Is there continuity?
08/08/21 14:29:46 61SNR030_110_0319
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11-320Fuel Supply System
Fuel Pump Circuit Troubleshooting (cont’d)
MRLY (GRN)
JUMPER WIRE
ECM/PCM CONNECTOR A (44P)
IMOFPR (BRN)
ECM/PCM CONNECTOR A (44P)UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P)
IMOFPR (BRN)
IMOFPR (BRN)
UNDER-DASH FUSE/RELAY BOX CONNECTOR F (34P)
20. Connect ECM/PCM connector terminal A6 to body
ground with a jumper wire.
21. Turn the ignition switch to ON (II).
22. Measure the voltage between ECM/PCM connector terminal A15 and body ground.
Go to step 23.
Replace PGM-FI main relay 2 (FUEL PUMP).
23. Turn the ignition switch to LOCK (0).
24. Reconnect ECM/PCM connector A (44P).
25. Open the SCS line with the HDS.
26. Turn the ignition switch to LOCK (0). 27. Turn the ignition switch to ON (II), and measure the
voltage between under-dash fuse/relay box
connector F (34P) terminal No. 10 and body ground
within 2 seconds.
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), then
recheck. If the symptom/indication goes away with
a known-good ECM/PCM, replace the original ECM/
PCM (see page 11-228).
Go to step 28.
28. Turn the ignition switch to ON (II), and measure the voltage between under-dash fuse/relay box
connector F (34P) terminal No. 10 and body ground
after 2 seconds.
Go to step 29.
If needed replace the under-dash fuse/relay
box (see page 22-66), then go to step 29.
Terminal side of female terminals
Terminal side of female terminalsWire side of female terminals
Wire side of female terminals
Is there battery voltage? Is there battery voltage?
Is there battery voltage?
08/08/21 14:29:46 61SNR030_110_0320
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