Acura RSX Honda Integra. Manual — part 105
07
−
−
−
−
−
−
YES
NO
YES
NO
YES
NO
11-126
PGM-FI System
DTC Troubleshooting (cont’d)
ECM/PCM CONNECTOR A (31P)
SG2
(GRN/YEL)
VCC2
(YEL/BLU)
15. Measure voltage between ECM/PCM connector
terminals A20 and A23.
Repair open in the wire between the ECM/
PCM (A20) and the TP sensor, then go to step 18.
Go to step 22.
16. Replace the throttle body, K20Z1 engine (see page
11-410), K20A3 engine (see page 11-411).
17. Reconnect all connectors.
18. Turn the ignition switch ON (II).
19. Reset the ECM/PCM with the HDS.
20. Do the ECM/PCM idle learn procedure (see page
11-349).
21. Check for Temporary DTCs or DTCs with the HDS.
If DTC P0122 is indicated, check for poor
connections or loose terminals at the TP sensor 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.
Troubleshooting is complete.
22. Update the ECM/PCM if it does not have the latest
software, or substitute a known-good ECM/PCM
(see page 11-6).
23. Check for Temporary DTCs or DTCs with the HDS.
If DTC P0122 is indicated, check for poor
connections or loose terminals at the TP sensor 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
Is ther e about 5 V ?
Ar e any T empor ar y DT Cs or DT Cs indicated?
Ar e any T empor ar y DT Cs or DT Cs indicated?
05/06/27 17:34:18 61S6M040_110_0126
01
01
S6M6AAJK72100090123FAAT00
−
−
−
−
−
−
DTC P0123:
YES
NO
YES
NO
YES
NO
11-127
TP SENSOR 3P CONNECTOR
VCC2
(YEL/BLU)
SG2
(GRN/YEL)
SG2
(GRN/YEL)*
VCC2
(YEL/BLU)*
ECM/PCM CONNECTOR A (31P)
VCC2
(YEL/BLU)
SG2
(GRN/YEL)
TP Sensor Circuit High Voltage
(2002-2004 models)
NOTE: Information marked with an asterisk ( ) applies
to K20A2 engine.
1. Turn the ignition switch ON (II).
2. Check the throttle position with a scan tool or the
HDS.
Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the TP sensor and the ECM/PCM.
Go to step 3.
3. Turn the ignition switch OFF.
4. Disconnect the TP sensor 3P connector.
5. Turn the ignition switch ON (II).
6. At the wire harness side, measure voltage between
TP sensor 3P connector terminals No. 1 and No. 3.
Replace the throttle body, K20A2 engine
(see page 11-410), K20A3 engine (see page 11-411).
Go to step 7.
7. Measure voltage between ECM/PCM connector
terminals A10 and A20.
Repair open in the wire between the ECM/
PCM (A10) and the TP sensor.
Update the ECM/PCM if it does not have the
latest software, or substitute a known-good ECM/
PCM (see page 11-6), then recheck. If the symptom/
indication goes away with a known-good ECM/PCM,
replace the original ECM/PCM (see page 11-284).
Wire side of female terminals
Wire side of female terminals
Is ther e about 10 % or 0.5 V when the thr ottle is
f ully closed and about 90 % or 4.5 V when the
thr ottle is f ully opened?
Is ther e about 5 V ?
Is ther e about 5 V ?
05/06/27 17:34:18 61S6M040_110_0127
01
02
S6M6AALK72100090123FAAT00
−
−
−
−
−
−
−
−
DTC P0123:
YES
NO
YES
NO
YES
NO
YES
NO
11-128
PGM-FI System
DTC Troubleshooting (cont’d)
TP SENSOR 3P CONNECTOR
VCC2
(YEL/BLU)
SG2
(GRN/YEL)*
SG2
(GRN/YEL)
VCC2
(YEL/BLU)*
ECM/PCM CONNECTOR A (31P)
SG2
(GRN/YEL)
VCC2
(YEL/BLU)
TP Sensor Circuit High Voltage
(2005-2006 models)
NOTE: Information marked with an asterisk ( ) applies
to K20Z1 engine.
1. Turn the ignition switch ON (II).
2. Check the TP SENSOR in the DATA LIST with the
HDS.
Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the TP sensor and the ECM/PCM.
Go to step 3.
3. Turn the ignition switch OFF.
4. Disconnect the TP sensor 3P connector.
5. Turn the ignition switch ON (II).
6. At the wire harness side, measure voltage between
TP sensor 3P connector terminals No. 1 and No. 3.
Go to step 8.
Go to step 7.
7. Measure voltage between ECM/PCM connector
terminals A20 and A23.
Repair open in the wire between the ECM/
PCM (A23) and the TP sensor, then go to step 10.
Go to step 14.
8. Turn the ignition switch OFF.
9. Replace the throttle body, K20Z1 engine (see page
11-410), K20A3 engine (see page 11-411).
10. Reconnect all connectors.
11. Turn the ignition switch ON (II).
12. Reset the ECM/PCM with the HDS.
13. Do the ECM/PCM idle learn procedure (see page
11-349).
14. Check for Temporary DTCs or DTCs with the HDS.
If DTC P0123 is indicated, check for poor
connections or loose terminals at the TP sensor 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.
Troubleshooting is complete.
Wire side of female terminals
Wire side of female terminals
Is ther e about 0.5 V when the thr ottle is f ully
closed and about 4.5 V when the thr ottle is f ully
opened?
Is ther e about 5 V ?
Is ther e about 5 V ?
Ar e any T empor ar y DT Cs or DT Cs indicated?
05/06/27 17:34:19 61S6M040_110_0128
−
−
YES
NO
11-129
15. Update the ECM/PCM if it does not have the latest
software, or substitute a known-good ECM/PCM
(see page 11-6).
16. Check for Temporary DTCs or DTCs with the HDS.
If DTC P0123 is indicated, check for poor
connections or loose terminals at the TP sensor 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).
Ar e any T empor ar y DT Cs or DT Cs indicated?
05/06/27 17:34:19 61S6M040_110_0129
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