Content .. 100 101 102 103 ..

Honda Odyssey 2004. Manual - part 102

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DTC P0116:

DTC P0117

’99-00, ’02-04 Models:

YES

11-106

PGM-FI System

DTC Troubleshooting (cont’d)

ECT SENSOR 2P CONNECTOR

ECT
(RED/WHT)

ECT Sensor Range/Performance

Problem

ECT

Sensor Circuit Low Voltage

NOTE: If DTC P0117 and/or P0118 are stored at the
same time as DTC P0116, troubleshoot those DTCs first,
then recheck for DTC P0116.

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 let it idle.

2. Check the ECT with the scan tool or the HDS.

Go to step 3.

Check the thermostat and the cooling system.

If they are OK, replace the ECT sensor.

3. Test drive the vehicle with the scan tool connected,

and monitor the thermostat and cooling system for
abnormal fluctuations in temperature readings.

Check the thermostat and cooling system.

Intermittent failure, system is OK at this

time.

1. Turn the ignition switch ON (II).

2. Check the ECT with the scan tool or the HDS.

Go to step 3.

Intermittent failure, system is OK at this time.

Check for poor connections or loose terminals at
the ECT sensor and the PCM.

3. Disconnect the ECT sensor 2P connector.

4. Check the ECT with the scan tool or the HDS.

Go to step 5.

Replace the ECT sensor.

5. Turn the ignition switch OFF.

6. Disconnect PCM connector C (31P).

7. Check the continuity between ECT sensor 2P

connector terminal No. 2 and body ground.

Repair short in the wire between the PCM

(C26) and the ECT sensor.

Substitute a known-good PCM and recheck

(see page 11-5). If normal ECT readings are
indicated, replace the original PCM.

Wire side of female terminals

Is 17 6

200°F ( 80

93°C) or 0.4

0.7 V

indicated?

Ar e ther e any f luctuations in the temper atur e
r eadings?

Is 302°F ( 150°C) or higher ( or H-Limit in the HDS),
or 0 V indicated?

Is ther e continuity?

03/07/29 09:21:11 61S0X050_110_0106

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DTC P0117

’01 Model:

YES

11-107

ECT SENSOR 2P CONNECTOR

ECT
(RED/WHT)

ECT Sensor Circuit

Low Voltage

1. Turn the ignition switch ON (II).

2. Check the ECT with the scan tool or the HDS.

Go to step 3.

Intermittent failure, system is OK at this time.

Check for poor connections or loose terminals at
the ECT sensor and the PCM.

3. Disconnect the ECT sensor 2P connector.

4. Check the ECT with the scan tool or the HDS.

Go to step 5.

Replace the ECT sensor.

5. Turn the ignition switch OFF.

6. Disconnect PCM connector A (31P).

7. Check the continuity between ECT sensor 2P

connector terminal No. 2 and body ground.

Repair short in the wire between the PCM

(A13) and the ECT sensor.

Substitute a known-good PCM and recheck

(see page 11-5). If normal ECT readings are
indicated, replace the original PCM.

Wire side of female terminals

Is 302°F ( 150°C) or higher ( or H-Limit in the HDS),
or 0 V indicated?

Is ther e continuity?

03/07/29 09:21:11 61S0X050_110_0107

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DTC P0118

’99-00, ’02-04 Models:

YES

11-108

PGM-FI System

DTC Troubleshooting (cont’d)

ECT SENSOR 2P CONNECTOR

SG2 (GRN/BLK)

JUMPER WIRE

ECT (RED/WHT)

SG2 (GRN/YEL)*

PCM CONNECTOR C (31P)

ECT (RED/WHT)

SG2 (GRN/BLK)

JUMPER WIRE

SG2 (GRN/YEL)*

ECT

Sensor Circuit High Voltage

NOTE: Information marked with an asterisk ( ) applies
to ’02-04 models.

1. Turn the ignition switch ON (II).

2. Check the ECT with the scan tool or the HDS.

Go to step 3.

Intermittent failure, system is OK at this time.

Check for poor connections or loose terminals at
the ECT sensor and the PCM.

3. Turn the ignition switch OFF.

4. Disconnect the ECT sensor 2P connector.

5. Connect ECT sensor 2P connector terminals No. 1

and No. 2 with a jumper wire.

6. Turn the ignition switch ON (II).

7. Check the ECT with the scan tool or the HDS.

Go to step 8.

Replace the ECT sensor.

8. Turn the ignition switch OFF.

9. Remove the jumper wire.

10. Connect PCM connector terminals C18 and C26

with a jumper wire.

11. Turn the ignition switch ON (II).

12. Check the ECT with the scan tool or the HDS.

Substitute a known-good PCM and recheck

(see page 11-5). If normal ECT readings are
indicated, replace the original PCM.

Repair open in the wire between the PCM

(C18, C26) and the ECT sensor.

Wire side of female terminals

4°F (

20°C) or less ( or L-Limit in the HDS),

or 5 V indicated?

4°F (

20°C) or less ( or L-Limit in the HDS),

or 5 V indicated?

4°F (

20°C) or less ( or L-Limit in the HDS),

or 5 V indicated?

03/07/29 09:21:12 61S0X050_110_0108

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DTC P0118

’01 Model:

YES

11-109

ECT SENSOR 2P CONNECTOR

SG2 (GRN/BLK)

JUMPER WIRE

ECT (RED/WHT)

PCM CONNECTOR A (31P)

JUMPER WIRE

SG2 (GRN/BLK)

ECT (RED/WHT)

ECT Sensor Circuit

High Voltage

1. Turn the ignition switch ON (II).

2. Check the ECT with the scan tool or the HDS.

Go to step 3.

Intermittent failure, system is OK at this time.

Check for poor connections or loose terminals at
the ECT sensor and the PCM.

3. Turn the ignition switch OFF.

4. Disconnect the ECT sensor 2P connector.

5. Connect ECT sensor 2P connector terminals No. 1

and No. 2 with a jumper wire.

6. Turn the ignition switch ON (II).

7. Check the ECT with the scan tool or the HDS.

Go to step 8.

Replace the ECT sensor.

8. Turn the ignition switch OFF.

9. Remove the jumper wire.

10. Connect PCM connector terminals A13 and A28

with a jumper wire.

11. Turn the ignition switch ON (II).

12. Check the ECT with the scan tool or the HDS.

Substitute a known-good PCM and recheck

(see page 11-5). If normal ECT readings are
indicated, replace the original PCM.

Repair open in the wire between the PCM

(A13, A28) and the ECT sensor.

Wire side of female terminals

4°F (

20°C) or less ( or L-Limit in the HDS),

or 5 V indicated?

4°F (

20°C) or less ( or L-Limit in the HDS),

or 5 V indicated?

4°F (

20°C) or less ( or L-Limit in the HDS),

or 5 V indicated?

03/07/29 09:21:12 61S0X050_110_0109

Content .. 100 101 102 103 ..