Acura CSX. Manual — part 126
+
01
SNR9AA7K72100092238FAAT00
+
−
−
−
−
−
−
DTC P2238:
YES
NO
YES
NO
YES
NO
11-178
PGM-FI System
ECM/PCM CONNECTOR C (44P)
AFS
(RED)
A/F Sensor (Sensor 1) AFS
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. 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 A/F sensor (Sensor 1) and the ECM/PCM.
4. Turn the ignition switch to LOCK (0).
5. Jump the SCS line with the HDS.
6. Disconnect the A/F sensor (Sensor 1) 4P connector.
7. Disconnect ECM/PCM connector C (44P).
8. Check for continuity between ECM/PCM connector
terminal C29 and body ground.
Repair short in the wire between the ECM/
PCM (C29) and the A/F sensor (Sensor 1), then go to
step 10.
Go to step 9.
9. Replace the A/F sensor (Sensor 1) (see page
11-221).
10. Reconnect all connectors.
11. Turn the ignition switch to ON (II).
12. Reset the ECM/PCM with the HDS.
13. Do the ECM/PCM idle learn procedure (see page
11-310).
14. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the A/F sensor (Sensor 1) and the ECM/
PCM, then go to step 1. If the connector and
terminal fits are OK, go to step 16.
Go to step 15.
Terminal side of female terminals
Is DT C P2238 indicated?
Is ther e continuity?
Is DT C P2238 indicated?
08/08/21 14:20:28 61SNR030_110_0178
SNR9AA7K72100092252FAAT00
−
−
−
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
YES
NO
DTC P2252:
11-179
11-179
15. Monitor the OBD STATUS for DTC P2238 in the
DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 14,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the A/F sensor
(Sensor 1) and the ECM/PCM, then go to step 1. If
the screen indicates NOT COMPLETED, keep idling
until a result comes on.
16. 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).
17. Start the engine, and let it idle.
18. Check for Temporary DTCs or DTCs with the HDS.
If the ECM/PCM was updated, substitute a
known-good ECM/PCM (see page 11-7), then go to
step 17. If the ECM/PCM was substituted, go to step
1.
Go to step 19.
19. Monitor the OBD STATUS for DTC P2238 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 18, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, go to step 1. If
the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then go to step 17.
If the ECM/PCM was substituted, go to step 1. If the
screen indicates NOT COMPLETED, keep idling
until a result comes on.
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 A/F sensor (Sensor 1) and the ECM/PCM.
5. Turn the ignition switch to LOCK (0).
6. Jump the SCS line with the HDS.
7. Disconnect the A/F sensor (Sensor 1) 4P connector.
8. Disconnect ECM/PCM connector C (44P).
A/F Sensor (Sensor 1) AFS
Circuit Low Voltage
Does the scr een indicate PASSED?
Is DT C P2238 indicated?
Does the scr een indicate PASSED?
Is DT C P2252 indicated?
08/08/21 14:20:28 61SNR030_110_0179
01
−
−
−
−
−
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
11-180
PGM-FI System
ECM/PCM CONNECTOR C (44P)
AFS
(RED/YEL)
9. Check for continuity between ECM/PCM connector
terminal C30 and body ground.
Repair short in the wire between the ECM/
PCM (C30) and the A/F sensor (Sensor 1), then go to
step 11.
Go to step 10.
10. Replace the A/F sensor (Sensor 1) (see page
11-221).
11. Reconnect all connectors.
12. Turn the ignition switch to ON (II).
13. Reset the ECM/PCM with the HDS.
14. Do the ECM/PCM idle learn procedure (see page
11-310).
15. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the A/F sensor (Sensor 1) and the ECM/
PCM, then go to step 1. If the connections and the
terminals fits are OK, go to step 17.
Go to step 16.
16. Monitor the OBD STATUS for DTC P2252 in the
DTCs MENU with the HDS.
Troubleshooting is complete. If any other
Temporary DTCs or DTCs were indicated in step 15,
go to the indicated DTC’s troubleshooting.
If the screen indicates FAILED, check for poor
connections or loose terminals at the A/F sensor
(Sensor 1) and the ECM/PCM, then go to step 1. If
the screen indicates NOT COMPLETED, keep idling
until a result comes on.
17. 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).
18. Start the engine, and let it idle.
19. Check for Temporary DTCs or DTCs with the HDS.
If the ECM/PCM was updated, substitute a
known-good ECM/PCM (see page 11-7), then go to
step 18. If the ECM/PCM was substituted, go to step
1.
Go to step 20.
20. Monitor the OBD STATUS for DTC P2252 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 19, go to the indicated
DTC’s troubleshooting.
If the screen indicates FAILED, go to step 1. If
the ECM/PCM was updated, substitute a known-
good ECM/PCM (see page 11-7), then go to step 18.
If the ECM/PCM was substituted, go to step 1. If the
screen indicates NOT COMPLETED, keep idling
until a result comes on.
Terminal side of female terminals
Is ther e continuity?
Is DT C P2252 indicated?
Does the scr een indicate PASSED?
Is DT C P2252 indicated?
Does the scr een indicate PASSED?
08/08/21 14:20:29 61SNR030_110_0180
SNR9AA7K72100092270FAAT00
−
−
−
−
−
−
DTC P2270:
DTC P2271:
YES
NO
YES
NO
YES
NO
11-181
Secondary HO2S (Sensor 2)
Circuit Signal Stuck Lean
Secondary HO2S (Sensor 2)
Circuit Signal Stuck Rich
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, and let it idle without load (A/T in
P or N, M/T in neutral) until the radiator fan comes
on.
4. Test-drive under these conditions:
• Engine coolant temperature (ECT SENSOR 1)
above 70 °C (158 °F)
• Vehicle speed at 56 km/h (35 mph) or more for
1 minute
5. Monitor the OBD STATUS for DTC P2270 or P2271
in the DTCs MENU with the HDS.
Go to step 6.
If the screen indicates PASSED, intermittent
failure, the system is OK at this time. Check for
poor connections or loose terminals at the
secondary HO2S (Sensor 2) and the ECM/PCM. If
the screen indicates EXECUTING, keep driving until
a result comes on. If the screen indicates OUT OF
CONDITION, go to step 3 and recheck.
6. Turn the ignition switch to LOCK (0).
7. Replace the secondary HO2S (Sensor 2) (see page
11-221).
8. Turn the ignition switch to ON (II).
9. Reset the ECM/PCM with the HDS.
10. Do the ECM/PCM idle learn procedure (see page
11-310).
11. Start the engine, and let it idle without load (A/T in
P or N, M/T in neutral) until the radiator fan comes
on.
12. Test-drive under these conditions:
• Engine coolant temperature (ECT SENSOR 1)
above 70 °C (158 °F)
• Vehicle speed at 56 km/h (35 mph) or more for
1 minute
13. Check for Temporary DTCs or DTCs with the HDS.
Check for poor connections or loose
terminals at the secondary HO2S (Sensor 2) and
the ECM/PCM, then go to step 1.
Go to step 14.
14. Monitor the OBD STATUS for DTC P2270 or P2271
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, check for poor
connections or loose terminals at the secondary
HO2S (Sensor 2) and the ECM/PCM, then go to step
1. If the screen indicates EXECUTING, keep driving
until a result comes on. If the screen indicates OUT
OF CONDITION, go to step 11.
Does the scr een indicate F AILED?
Is DT C P227 0 or P227 1 indicated?
Does the scr een indicate PASSED?
08/08/21 14:21:46 61SNR030_110_0181
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст