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Acura RSX Honda Integra. Manual - part 102

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−

DTC P0116:

YES

11-114

PGM-FI System

DTC Troubleshooting (cont’d)

ECT Sensor Circuit Range/

Performance Problem
(2002-2004 models)

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. Turn the ignition switch ON (II).

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

Go to step 3.

Go to step 7.

3. Note the coolant temperature from step 2.

4. Turn the ignition switch OFF.

5. Cool the engine for 1 hour.

6. Check the ECT with a scan tool or the HDS.

Intermittent failure, system is OK at this time.

Check the thermostat and the cooling system.

Replace the ECT sensor (see page 11-280).

7. Note the coolant temperature from step 2.

8. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

9. Check the ECT with a scan tool or the HDS.

Intermittent failure, system is OK at this time.

Check the thermostat and the cooling system.

Replace the ECT sensor (see page 11-280).

Is about 17 6 °F ( 80 °C) or higher , or 0.86 V or less
indicated?

Did the ECT change 3.6 °F ( 2 °C) or mor e?

Does the ECT change 3.6 °F ( 2 °C) or mor e?

05/06/27 17:33:39 61S6M040_110_0114

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−

DTC P0116:

YES

11-115

ECT Sensor Circuit Range/

Performance Problem
(2005-2006 models)

1. Turn the ignition switch ON (II).

2. Check the ECT SENSOR in the DATA LIST with the

HDS.

Go to step 6.

Go to step 3.

3. Note the value of the ECT SENSOR in the DATA

LIST with the HDS.

4. Start the engine. Hold the engine speed at

3,000 rpm without load (in Park or neutral) until the
radiator fan comes on, then let it idle.

5. Check the ECT 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 ECT sensor and the ECM/PCM.

Go to step 11.

6. Note the value of the ECT SENSOR in the DATA

LIST with the HDS.

7. Turn the ignition switch OFF.

8. Open the engine hood, and let the engine cool for

3 hours.

9. Turn the ignition switch ON (II).

10. Check the ECT 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 ECT sensor and the ECM/PCM.

Go to step 11.

11. Turn the ignition switch OFF.

12. Replace the ECT sensor (see page 11-280).

13. Turn the ignition switch ON (II).

14. Reset the ECM/PCM with the HDS.

15. Do the ECM/PCM idle learn procedure (see page

11-349).

16. Check for Temporary DTCs or DTCs with the HDS.

If DTC P0116 is indicated, check for poor

connections or loose terminals at the ECT 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.

Is about 17 6 °F ( 80 °C) or higher , or 0.7 8 V or less
indicated?

Does the ECT SENSOR change 18 °F ( 10 °C) or
mor e?

Ar e any T empor ar y DT Cs or DT Cs indicated?

05/06/27 17:33:39 61S6M040_110_0115

０１

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−

DTC P0117:

YES

11-116

PGM-FI System

DTC Troubleshooting (cont’d)

ECT SENSOR 2P CONNECTOR

ECT
(RED/WHT)

ECT Sensor Circuit Low Voltage

(2002-2004 models)

1. Turn the ignition switch ON (II).

2. Check the ECT with a 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 ECM/PCM.

3. Disconnect the ECT sensor 2P connector.

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

Go to step 5.

Replace the ECT sensor (see page 11-280).

5. Turn the ignition switch OFF.

6. Disconnect ECM/PCM connector B (24P).

7. Check for continuity between ECT sensor 2P

connector terminal No. 1 and body ground.

Repair short in the wire between the ECM/

PCM (B8) and the ECT 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

Is 302 °F ( 150 °C) or higher , or 0 V indicated?

Is ther e continuity?

05/06/27 17:33:39 61S6M040_110_0116

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−

DTC P0117:

YES

11-117

ECT SENSOR 2P CONNECTOR

ECT
(RED/WHT)

ECT Sensor Circuit Low Voltage

(2005-2006 models)

1. Turn the ignition switch ON (II).

2. Check the ECT SENSOR in the DATA LIST with 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 ECM/PCM.

3. Turn the ignition switch OFF.

4. Disconnect the ECT sensor 2P connector.

5. Turn the ignition switch ON (II).

6. Check the ECT SENSOR in the DATA LIST with the

HDS.

Go to step 7.

Go to step 11.

7. Turn the ignition switch OFF.

8. Jump the SCS line with the HDS.

9. Disconnect ECM/PCM connector B (24P).

10. Check for continuity between ECT sensor 2P

connector terminal No. 1 and body ground.

Repair short in the wire between the ECT

sensor and the ECM/PCM (B8), then go to step 13.

Go to step 18.

11. Turn the ignition switch OFF.

12. Replace the ECT sensor (see page 11-280).

13. Reconnect all connectors.

14. Turn the ignition switch ON (II).

15. Reset the ECM/PCM with the HDS.

16. Do the ECM/PCM idle learn procedure (see page

11-349).

17. Check for Temporary DTCs or DTCs with the HDS.

If DTC P0117 is indicated, check for poor

connections or loose terminals at the ECT 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.

18. Update the ECM/PCM if it does not have the latest

software, or substitute a known-good ECM/PCM
(see page 11-6).

19. Check for Temporary DTCs or DTCs with the HDS.

If DTC P0117 is indicated, check for poor

connections or loose terminals at the ECT 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 about 356 °F ( 180 °C) or higher , or 0.08 V or
less indicated?

Is ther e continuity?

Ar e any T empor ar y DT Cs or DT Cs indicated?

05/06/27 17:33:39 61S6M040_110_0117

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