Content .. 90 91 92 93 ..

Honda Ridgeline. Manual - part 92

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−

DTC P1116:

YES

11-132

PGM-FI System

DTC Troubleshooting (cont’d)

ECT Sensor 1 Circuit Range/

Performance Problem

NOTE:

• Before you troubleshoot, record all freeze data and

any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

• If DTC P0111 is stored at the same time as DTC P1116,

troubleshoot DTC P0111 first, then recheck for DTC
P1116.

1. Check for poor connections or loose terminals at

ECT sensor 1 and ECT sensor 2.

Go to step 2.

Repair the connectors or terminals, then go to

step 27.

2. Turn the ignition switch ON (II).

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

Go to step 15.

Go to step 4.

4. Start the engine, and let it idle 10 minutes.

5. Check ECT SENSOR 1 in the DATA LIST with the

HDS.

Replace ECT sensor 1 (see page 11-201), then

go to step 27.

Go to step 6.

6. Turn the ignition switch OFF.

7. Drain the coolant (see page 10-6).

8. Remove ECT sensor 1 (see page 11-201).

9. Allow ECT sensor 1 to cool to 77 °F (25 °C).

10. Note the ambient temperature.

11. Connect ECT sensor 1 to its 2P connector, but do

not install it on the engine.

12. Turn the ignition switch ON (II).

13. Note the value of ECT SENSOR 1 quickly in the

DATA LIST with the HDS.

14. Compare the value of ECT SENSOR 1 and the

ambient temperature.

Replace ECT sensor 1 (see page 11-201), then

go to step 27.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at ECT sensor 1, ECT sensor 2, and the PCM.

15. Start the engine, and let it idle 10 minutes.

Ar e the connections and ter minals OK ?

Ar e DT C P1116 and P2183 indicated at the same
time?

Is about 129 °F ( 54 °C) or less, or 1.54 V or mor e
indicated?

Does the value of ECT SENSOR 1 dif f er 5.4 °F
( 3 °C) or mor e?

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YES

11-133

16. Check ECT SENSOR 1 in the DATA LIST with the

HDS.

Replace ECT sensor 1 (see page 11-201), then

go to step 27.

Go to step 17.

17. Let the engine idle 10 minutes.

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

HDS.

Replace ECT sensor 2 (see page 11-201), then

go to step 27.

Go to step 19.

19. Turn the ignition switch OFF.

20. Drain the coolant (see page 10-6).

21. Remove ECT sensor 1 (see page 11-201), and ECT

sensor 2 (see page 11-201).

22. Allow the sensors to cool to 77 °F (25 °C).

23. Note the ambient temperature.

24. Connect ECT sensor 1 to its 2P connector, and ECT

sensor 2 to its 2P connector, but do not install them
on the engine.

25. Note the value of ECT SENSOR 1 and ECT

SENSOR 2 quickly in the DATA LIST with the HDS.

26. Compare the value of ECT SENSOR 1 and the

ambient temperature, and the value of ECT
SENSOR 2 and the ambient temperature
individually.

Replace the sensor that differed more than

5.4 °F (3 °C) from the ambient temperature, then go
to step 27.

Intermittent failure, the system is OK at this

time. Check for poor connections or loose terminals
at ECT sensor 1, ECT sensor 2, and the PCM.

27. Turn the ignition switch ON (II).

28. Reset the PCM with the HDS.

29. Do the PCM idle learn procedure (see page 11-273).

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

Check for poor connections or loose

terminals at ECT sensor 1, ECT sensor 2, and the
PCM, then go to step 1.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs are indicated, go to the
indicated DTC’s troubleshooting.

Is about 118 °F ( 48 °C) or less, or 1.7 5 V or mor e
indicated?

Is about 131 °F ( 55 °C) or less, or 1.50 V or mor e
indicated?

Does one of the sensor s dif f er mor e than 5.4 °F
( 3 °C) f r om the ambient temper atur e?

Is DT C P0116 indicated?

−

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−

DTC P1128:

YES

11-134

PGM-FI System

DTC Troubleshooting (cont’d)

MAP Sensor Signal Lower Than

Expected

NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

1. Inspect the air cleaner element (see page 11-315).

Go to step 2.

Clean or replace the air cleaner element

(see page 11-315).

2. Turn the ignition switch ON (II).

3. Check the MAP SENSOR in the DATA LIST with the

HDS.

Go to step 7.

Go to step 4.

4. Clear the DTC with the HDS.

5. 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.

6. Test-drive under these conditions:

• Engine coolant temperature (ECT SENSOR 1)

above 158 °F (70 °C)

• Engine speed between 1,200 and 5,500 rpm
• Transmission in D position
• Vehicle speed accelerated from 16

31 mph

(25

50 km/h) under half throttle

7. Monitor the OBD STATUS for DTC P1128 in the

DTCs MENU with the HDS.

Go to step 8.

If the screen indicates PASSED, intermittent

failure, the system is OK at this time. Check for
poor connections or loose terminals at the MAP
sensor and the PCM. If the screen indicates NOT
COMPLETED, go to step 5 and recheck.

8. Turn the ignition switch OFF.

9. Replace the MAP sensor (see page 11-204).

10. Turn the ignition switch ON (II).

11. Reset the PCM with the HDS.

12. Do the PCM idle learn procedure (see page 11-273).

13. 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.

14. Test-drive under these conditions:

• Engine coolant temperature (ECT SENSOR 1)

above 158 °F (70 °C)

• Engine speed between 1,200 and 5,500 rpm
• Transmission in D position
• Vehicle speed accelerated from 16

31 mph

(25

50 km/h) under half throttle

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

Check for poor connections or loose

terminals at the MAP sensor and the PCM, then go
to step 1.

Go to step 16.

16. Monitor the OBD STATUS for DTC P1128 in the

DTCs MENU with the HDS.

Troubleshooting is complete. If any other

Temporary DTCs or DTCs were indicated in step 15,
go to the indicated DTC’s troubleshooting.

If the screen indicates FAILED, check for poor

connections or loose terminals at the MAP sensor
and the PCM, then go to step 1. If the screen
indicates NOT COMPLETED, go to step 14.

Is it OK ?

Is ther e less than 54.1 kPa ( 16.0 in.Hg, 406 mmHg)
or 1.61 V held f or mor e than 5 seconds?

Does the scr een indicate F AILED?

Is DT C P1128 indicated?

Does the scr een indicate PASSED?

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−

DTC P1129:

YES

11-135

MAP Sensor Signal Higher than

Expected

NOTE: Before you troubleshoot, record all freeze data
and any on-board snapshot, and review the general
troubleshooting information (see page 11-3).

1. Check for vacuum leaks at these parts:

• PCV valve
• PCV hose
• EVAP canister purge valve
• Throttle body
• Intake manifold
• Brake booster hose

Repair or replace the part(s) with vacuum

leaks, then go to step 9.

Go to step 2.

2. 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.

3. Check the MAP SENSOR in the DATA LIST with the

HDS.

Go to step 7.

Go to step 4.

4. Clear the DTC with the HDS.

5. Test-drive under these conditions:

• Engine coolant temperature (ECT SENSOR 1)

above 158 °F (70 °C)

• Engine speed between 1,400 and 6,500 rpm
• Transmission in D position
• Vehicle speed decelerated from more than

50 mph (80 km/h) with the throttle fully closed for
at least 5 seconds

6. Monitor the OBD STATUS for DTC P1129 in the

DTCs MENU with the HDS.

Go to step 7.

If the screen indicates PASSED, intermittent

failure, the system is OK at this time. Check for
poor connections or loose terminals at the MAP
sensor and the PCM. If the screen indicates NOT
COMPLETED, go to step 5 and recheck.

7. Turn the ignition switch OFF.

8. Replace the MAP sensor (see page 11-204).

9. Turn the ignition switch ON (II).

10. Reset the PCM with the HDS.

11. Do the PCM idle learn procedure (see page 11-273).

12. 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.

(cont’d)

Ar e ther e any vacuum leaks?

Is ther e mor e than 36.9 kPa ( 11.0 in.Hg,
27 7 mmHg) or 1.14 V held f or mor e than
5 seconds?

Does the scr een indicate F AILED?

Content .. 90 91 92 93 ..