Honda 2004 Odyssey, Service Manual

Page: 411 / 2459

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DTC P0112 ’99-00, ’02-04 Models:
YES
NO
YES
NO
YES
NO
YES
NO
11-102
PGM-FI System
DTC Troubleshooting (cont’d)
IAT SENSOR 2P CONNECTOR
IAT
(RED/YEL)
IAT
Sensor Circuit Low Voltage
1. Turn the ignition switch ON (II).
2. Check the IAT with the scan tool or the HDS.
Go to step 3.
Go to step 8.
3. Disconnect the IAT sensor 2P connector.
4. Check the IAT with the scan tool or the HDS.
Go to step 5.
Replace the IAT sensor.
5. Turn the ignition switch OFF.
6. Disconnect PCM connector C (31P).
7. Check for continuity between IAT sensor 2P
connector terminal No. 2 and body ground.
Repair short in the wire between the PCM
(C25) and the IAT sensor.
Substitute a known-good PCM and recheck
(see page 11-5). If normal IAT readings are
indicated, replace the original PCM.
8. Check the temperature reading on the scan tool.
If the engine is warm, the reading will be higher
than ambient temperature. If the engine is cold, the
IAT and ECT will have the same value.
Intermittent failure, system is OK at this time.
Check for poor connections or loose terminals at
the IAT sensor and the PCM.
Replace the IAT sensor.
Wire side of female terminals
Is 302°F ( 150°C) or higher ( or H-Limit in the HDS),
or 0 V indicated?
Is 302°F ( 150°C) or higher ( or H-Limit in the HDS),
or 0 V indicated?
Is ther e continuity?
Is the cor r ect ambient temper atur e indicated?
03/07/29 09:21:09 61S0X050_110_0102