Acura RSX Honda Integra. Manual — part 109
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01
02
S6M6AALK72100090135FAAT00
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DTC P0135:
YES
NO
YES
NO
YES
NO
YES
NO
11-142
PGM-FI System
DTC Troubleshooting (cont’d)
A/F SENSOR (SENSOR 1) 4P CONNECTOR
B
AFSHTC
A/F SENSOR (SENSOR 1) 4P CONNECTOR
B
AFSHTC
AFS
A/F Sensor (Sensor 1) Heater
Circuit Malfunction
(2005-2006 models)
1. Turn the ignition switch ON (II).
2. Clear the DTC with the HDS.
3. Start the engine. Hold the engine speed at
3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.
4. Check for Temporary DTCs or DTCs with the HDS.
Go to step 5.
Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the A/F sensor (Sensor 1), the A/F sensor relay and
the ECM/PCM.
5. Turn the ignition switch OFF.
6. Check these fuses:
• No. 14 OPTION (30 A) fuse in under-hood fuse/
relay box.
• No. 2
B LAF (A/F) HEATER (20 A) fuse in under-
dash fuse/relay box.
• No. 4 ACG (10 A) fuse in under-dash fuse/relay
box.
Repair short in the wire between the A/F
sensor relay and the fuses, then go to step 25.
Go to step 7.
7. Disconnect the A/F sensor (Sensor 1) 4P connector.
8. At the A/F sensor side, measure resistance between
A/F sensor (Sensor 1) 4P connector terminals No. 3
and No. 4.
Go to step 9.
Go to step 24.
9. At the A/F sensor side, check for continuity
between A/F sensor (Sensor 1) 4P connector
terminal No. 2 and A/F sensor (Sensor 1) 4P
connector terminals No. 3 and No. 4 individually.
Go to step 24.
Go to step 10.
Terminal side of male terminals
Terminal side of male terminals
Is DT C P0135 indicated?
Ar e any of the f uses blown?
Is ther e 2.1
2.9
at r oom temper atur e?
Is ther e continuity?
05/06/27 17:34:20 61S6M040_110_0142
03
04
05
06
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YES
NO
YES
NO
11-143
AFSHTC
(BLK/WHT)
ECM/PCM CONNECTOR A (31P)
A/F SENSOR (SENSOR 1) 4P CONNECTOR
AFSHTC
(GRN)
JUMPER WIRE
AFSHTC
(BLK/WHT)
ECM/PCM CONNECTOR A (31P)
A
10. Jump the SCS line with the HDS.
11. Disconnect ECM/PCM connector A (31P).
12. Check for continuity between ECM/PCM connector
terminal A10 and body ground.
Repair short in the wire between the ECM/
PCM (A10) and the A/F sensor (Sensor 1), then go
to step 25.
Go to step 13.
13. Connect A/F sensor (Sensor 1) 4P connector
terminal No. 4 to body ground with a jumper wire.
14. Check for continuity between ECM/PCM connector
terminal A10 and body ground.
Go to step 15.
Repair open in the wire between the ECM/
PCM (A10) and the A/F sensor (Sensor 1), then go
to step 25.
15. Remove the A/F sensor relay (A).
(cont’d)
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e continuity?
05/06/27 17:34:21 61S6M040_110_0143
07
08
09
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YES
NO
YES
NO
YES
NO
11-144
PGM-FI System
DTC Troubleshooting (cont’d)
A/F SENSOR (SENSOR 1) 4P CONNECTOR
B (WHT)
JUMPER WIRE
A/F SENSOR RELAY 4P CONNECTOR
B (WHT)
ECM/PCM CONNECTOR E (31P)
AFSHTCR (ORN)
A/F SENSOR RELAY
4P CONNECTOR
AFSHTCR (ORN)
16. Check the A/F sensor relay (see page 22-62).
Go to step 17.
Replace the A/F sensor relay, then go to
step 25.
17. Connect A/F sensor (Sensor 1) 4P connector
terminal No. 3 to body ground with a jumper wire.
18. Check for continuity between A/F sensor relay 4P
connector terminal No. 1 and body ground.
Go to step 19.
Repair open in the wire between the A/F
sensor (Sensor 1) and the A/F sensor relay, then go
to step 25.
19. Disconnect ECM/PCM connector E (31P).
20. Check for continuity between ECM/PCM connector
terminal E8 and A/F sensor relay 4P connector
terminal No. 3.
Go to step 21.
Repair open in the wire between the ECM/
PCM (E8) and the A/F sensor relay, then go to
step 25.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is the A/ F sensor r elay OK ?
Is ther e continuity?
Is ther e continuity?
05/06/27 17:34:21 61S6M040_110_0144
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10
11
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YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
11-145
A/F SENSOR RELAY 4P CONNECTOR
B
(WHT/RED)
A/F SENSOR RELAY 4P CONNECTOR
IG1
(BLK/ORN)
21. Measure voltage between A/F sensor relay 4P
connector terminal No. 2 and body ground.
Go to step 22.
Repair open in the wire between the A/F
sensor relay and the No. 2
B LAF (A/F) HEATER
(20 A) fuse, then go to step 25.
22. Turn the ignition switch ON (II).
23. Measure voltage between A/F sensor relay 4P
connector terminal No. 4 and body ground.
Go to step 31.
Repair open in the wire between the A/F
sensor relay and the No. 4 ACG (10 A) fuse, then
go to step 25.
24. Replace the A/F sensor (Sensor 1) (see page
11-279).
25. Reconnect all connectors.
26. Turn the ignition switch ON (II).
27. Reset the ECM/PCM with the HDS.
28. Do the ECM/PCM idle learn procedure (see page
11-349).
29. Check for Temporary DTCs or DTCs with the HDS.
If DTC P0135 is indicated, check for poor
connections or loose terminals at the A/F sensor
(Sensor 1) and the ECM/PCM, then go to step 1. If
any other Temporary DTCs or DTCs are indicated,
go to the indicated DTC’s troubleshooting.
Go to step 30.
30. Monitor the OBD STATUS for DTC P0135 in the
DTCs MENU with the HDS.
Troubleshooting is complete.
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, go to step
28 and recheck.
31. Update the ECM/PCM if it does not have the latest
software, or substitute a known-good ECM/PCM
(see page 11-6).
32. Check for Temporary DTCs or DTCs with the HDS.
If DTC P0135 is indicated, check for poor
connections or loose terminals at the A/F sensor
(Sensor 1), and the A/F sensor relay and the ECM/
PCM, then go to step 1. If any other Temporary
DTCs or DTCs are indicated, go to the indicated
DTC’s troubleshooting.
If the ECM/PCM was updated, troubleshooting
is complete. If the ECM/PCM was substituted,
replace the original ECM/PCM (see page 11-284).
Wire side of female terminals
Wire side of female terminals
Is ther e batter y voltage?
Is ther e batter y voltage?
Ar e any T empor ar y DT Cs or DT Cs indicated?
Does the scr een indicate PASSED?
Ar e any T empor ar y DT Cs or DT Cs indicated?
05/06/27 17:34:21 61S6M040_110_0145
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