Honda Odyssey 2004. Manual — part 103
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01
*01
*02
S0X4AZ6K77100090122FAAT00
DTC P0122
’99-00, ’02-04 Models:
YES
NO
YES
NO
YES
NO
YES
NO
11-110
PGM-FI System
DTC Troubleshooting (cont’d)
TP SENSOR 3P CONNECTOR
SG2 (GRN/BLK)
VCC2 (YEL/BLU)
SG2 (GRN/YEL)*
TP SENSOR 3P CONNECTOR
SG2
TPS
TP SENSOR 3P CONNECTOR
VCC2
TPS
TP Sensor
Circuit Low Voltage
NOTE: Information marked with an asterisk ( ) applies
to ’02-04 models.
1. Start the engine. Hold the engine at 3,000 rpm with
no load (in Park or neutral) until the radiator fan
comes on, then turn the ignition switch OFF.
2. Turn the ignition switch ON (II).
3. Check the throttle position with the 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 PCM.
Go to step 4.
4. Turn the ignition switch OFF.
5. Disconnect the TP sensor 3P connector.
6. Turn the ignition switch ON (II).
7. Measure voltage between TP sensor 3P connector
terminals No. 1 and No. 3.
Go to step 8.
Go to step 15.
8. Turn the ignition switch OFF.
9. At the sensor side, measure resistance between TP
sensor 3P connector terminals No. 1 and No. 2 with
the throttle fully closed.
Go to step 10.
10. Measure resistance between TP sensor 3P
connector terminals No. 2 and No. 3 with the
throttle fully closed.
Go to step 11.
11. Disconnect PCM connector C (31P).
Wire side of female terminals
Terminal side of male terminals
Terminal side of male 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 0.5
0.9 k
?
Is ther e about 4.5 k
?
03/07/29 09:21:13 61S0X050_110_0110
Replace the throttle body.
Replace the throttle body.
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01
02
03
02
YES
NO
YES
NO
YES
NO
11-111
TP SENSOR 3P CONNECTOR
TPS (RED/BLK)
PCM CONNECTOR C (31P)
TPS (RED/BLK)
JUMPER WIRE
TP SENSOR 3P CONNECTOR
TPS (RED/BLK)
SG2 (GRN/BLK)
VCC2 (YEL/BLU)
SG2 (GRN/YEL)*
PCM CONNECTOR C (31P)
12. At the wire harness side, check for continuity
between TP sensor 3P connector terminal No. 2
and body ground.
Repair short in the wire between the PCM
(C27) and the TP sensor.
Go to step 13.
13. Connect PCM connector terminal C27 and body
ground with a jumper wire.
14. At the wire harness side, check for continuity
between TP sensor 3P connector terminal No. 2
and body ground.
Substitute a known-good PCM and recheck
(see page 11-5). If the prescribed voltage is now
available, replace the original PCM.
Repair open in the wire between the PCM
(C27) and the TP sensor.
15. Measure voltage between PCM connector
terminals C18 and C28.
Repair open in the wire between the PCM
(C28) and the TP sensor.
Substitute a known-good PCM and recheck
(see page 11-5). If the prescribed voltage is now
available, replace the original PCM.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e continuity?
Is ther e about 5 V ?
03/07/29 09:21:14 61S0X050_110_0111
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−
−
−
−
*01
*02
*03
S0X4AZ1K77100090122FAAT00
DTC P0122
’01 Model:
YES
NO
YES
NO
YES
NO
YES
NO
11-112
PGM-FI System
DTC Troubleshooting (cont’d)
TP SENSOR 3P CONNECTOR
SG2 (GRN/BLK)
VCC2 (YEL/BLU)
TP SENSOR 3P CONNECTOR
SG2
TPS
TP SENSOR 3P CONNECTOR
VCC2
TPS
TP Sensor Circuit
Low Voltage
1. Start the engine. Hold the engine at 3,000 rpm with
no load (in Park or neutral) until the radiator fan
comes on, then turn the ignition switch OFF.
2. Turn the ignition switch ON (II).
3. Check the throttle position with the 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 PCM.
Go to step 4.
4. Turn the ignition switch OFF.
5. Disconnect the TP sensor 3P connector.
6. Turn the ignition switch ON (II).
7. Measure voltage between TP sensor 3P connector
terminals No. 1 and No. 3.
Go to step 8.
Go to step 15.
8. Turn the ignition switch OFF.
9. At the sensor side, measure resistance between TP
sensor 3P connector terminals No. 1 and No. 2 with
the throttle fully closed.
Go to step 10.
10. Measure resistance between the TP sensor 3P
connector terminals No. 2 and No. 3 with the
throttle fully closed.
Go to step 11.
11. Disconnect PCM connector A (31P).
Wire side of female terminals
Terminal side of male terminals
Terminal side of male 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 0.5
0.9 k
?
Is ther e about 4.5 k
?
03/07/29 09:21:14 61S0X050_110_0112
Replace the throttle body.
Replace the throttle body.
−
−
−
−
−
−
01
02
03
04
YES
NO
YES
NO
YES
NO
11-113
TP SENSOR 3P CONNECTOR
TPS (RED/BLK)
PCM CONNECTOR A (31P)
JUMPER WIRE
TPS (RED/BLK)
TP SENSOR 3P CONNECTOR
TPS (RED/BLK)
PCM CONNECTOR A (31P)
VCC2
(YEL/BLU)
SG2 (GRN/BLK)
12. At the wire harness side, check for continuity
between TP sensor 3P connector terminal No. 2
and body ground.
Repair short in the wire between the PCM
(A15) and the TP sensor.
Go to step 13.
13. Connect PCM connector terminal A15 and body
ground with a jumper wire.
14. At the wire harness side, check for continuity
between TP sensor 3P connector terminal No. 2
and body ground.
Substitute a known-good PCM and recheck
(see page 11-5). If the prescribed voltage is now
available, replace the original PCM.
Repair open in the wire between the PCM
(A15) and the TP sensor.
15. Measure voltage between PCM connector
terminals A28 and A30.
Repair open in the wire between the PCM
(A30) and the TP sensor.
Substitute a known-good PCM and recheck
(see page 11-5). If the prescribed voltage is now
available, replace the original PCM.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Is ther e continuity?
Is ther e continuity?
Is ther e about 5 V ?
03/07/29 09:21:15 61S0X050_110_0113
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