Honda Accord 2008 Manual page 407

07/11/02 09:03:20 61TA0000_110_0088
PGM-FI System
DTC Troubleshooting (cont'd)
DTC P0118:
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. Check ECT SENSOR 1 in the DATA LIST with the
HDS.
Is about
higher indicated?
YES
NO −
time. Check for poor connections or loose terminals
at ECT sensor 1 and the ECM/PCM.
3. Turn the ignition switch to LOCK (0).
4. Disconnect the ECT sensor 1 2P connector.
5. Connect ECT sensor 1 2P connector terminals No. 1
and No. 2 with a jumper wire.
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11-88
ECT Sensor 1 Circuit High
− 40 °F ( − 40 °C) or less, or 4.90 V or
−
Go to step 3.
Intermittent failure, the system is OK at this
ECT SENSOR 1 2P CONNECTOR
ECT1 (RED/WHT) SG2 (GRN/BLK)
JUMPER WIRE
Wire side of female terminals
6. Turn the ignition switch to ON (II).
7. Check ECT SENSOR 1 in the DATA LIST with the
HDS.
Is about − 40 °F ( − 40 °C) or less, or 4.90 V or
higher indicated?
−
YES Go to step 8.
NO − Go to step 20.
8. Turn the ignition switch to LOCK (0).
9. Remove the jumper wire from the ECT sensor 1 2P
connector.
10. Turn the ignition switch to ON (II).
11. Measure voltage between ECT sensor 1 2P
connector terminal No. 1 and body ground.
ECT SENSOR 1 2P CONNECTOR
ECT1 (RED/WHT)
Wire side of female terminals
Is there about 5 V ?
−
YES Go to step 12.
NO − Go to step 16.
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