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Honda Ridgeline. Manual - part 73

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Air Fuel Ratio (A/F) Sensor Heater Monitor
Readiness Code

Misfire Monitor and Readiness Code

Fuel System Monitor and Readiness Code

Comprehensive Component Monitor and
Readiness Code

EGR Monitor and Readiness Code

Procedure

Enable Criteria

Procedure

11-56

Fuel and Emissions Systems

How to Set Readiness Codes (cont’d)

NOTE: All readiness codes are cleared when the battery
is disconnected, if the DTCs have been cleared, or if the
PCM is reset with the HDS.

1. Start the engine, and let it idle for 1 minute. The

readiness code should switch from incomplete to
complete.

2. If the readiness code is still not set to complete,

check for a Temporary DTC. If there is no DTC,
repeat the procedure.

• This readiness code is always set to available

because misfiring is continuously monitored.

• Monitoring pauses, and the misfire counter resets, if

the vehicle is driven over a rough road.

• Monitoring also pauses, and the misfire counter

holds at its current value, if the throttle position
changes more than a predetermined value, or if
driving conditions fall outside the range of any
related enable criteria.

• This readiness code is always set to available

because the fuel system is continuously monitored
during closed loop operation.

• Monitoring pauses when the catalytic converter,

EVAP control system, and A/F sensor monitors are
active.

• Monitoring also pauses when any related enable

criteria are not being met. Monitoring resumes when
the enable criteria is again being met.

This readiness code is always set to available because
the comprehensive component monitor is continuously
running whenever the engine is cranking or running.

NOTE:

• Do not turn the ignition switch off during the

procedure.

• All readiness codes are cleared when the battery is

disconnected, if the DTCs have been cleared, or if the
PCM is reset with the HDS.

ECT SENSOR 1 at 176 °F (80 °C) or more.

1. Connect the HDS to the DLC.

2. Start the engine.

3. Drive at a steady speed with the transmission in

D position, at 50

62 mph (80

100 km/h) or above

for more than 10 seconds.

4. With the transmission in D position, decelerate

from 62 mph (100 km/h) or above by completely
releasing the throttle for at least 5 seconds. If the
engine is stopped during this procedure, go to
step 3 and do the procedure again.

5. Check the OBD status screen for DTC P0401 in the

DTC’s MENU with the HDS.

• If it is passed, readiness is complete.
• If it is not passed, go to step 3 and retest.

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11-57

PGM-FI System

Component Location Index

INTAKE AIR TEMPERATURE
(IAT) SENSOR

ELECTRICAL LOAD
DETECTOR (ELD)

CAMSHAFT POSITION
(CMP) SENSOR

KNOCK SENSOR

ENGINE COOLANT TEMPERATURE
(ECT) SENSOR 1

CRANKSHAFT POSITION
(CKP) SENSOR

POWERTRAIN CONTROL MODULE
(PCM)

MANIFOLD ABSOLUTE PRESSURE
(MAP) SENSOR

INJECTORS

OUTPUT SHAFT (COUNTERSHAFT)
SPEED SENSOR

ENGINE COOLANT TEMPERATURE
(ECT) SENSOR 2

(cont’d)

Replacement, page 11-202

Replacement, page 11-203

Replacement, page 11-202

Replacement, page 11-201

Replacement, page 11-203

General Troubleshooting Information,

page 11-3

Update, page 11-7
Substitution, page 11-8
Replacement, page 11-205

Replacement, page 11-204

Replacement, page 11-197

Replacement, page 14-205

Replacement, page 11-201

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11-58

PGM-FI System

Component Location Index (cont’d)

REAR AIR FUEL RATIO (A/F)
SENSOR (BANK 1, SENSOR 1)

FRONT AIR FUEL RATIO (A/F)
SENSOR
(BANK 2, SENSOR 1)

REAR SECONDARY
HEATED OXYGEN
SENSOR (SECONDARY HO2S)
(BANK 1, SENSOR 2)

FRONT SECONDARY HEATED OXYGEN
SENSOR (SECONDARY HO2S)
(BANK 2, SENSOR 2)

PGM-FI MAIN
RELAY 1 (FI MAIN)

AIR FUEL RATIO (A/F)
SENSOR RELAY (LAF)

PGM-FI MAIN
RELAY 2 (FUEL PUMP)

DATA LINK CONNECTOR (DLC)

Replacement, page 11-199

Replacement, page 11-200

General Troubleshooting Information,

page 11-3

Circuit Troubleshooting, page 11-194

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DTC P0107:

YES

11-59

DTC Troubleshooting

MAP SENSOR 3P CONNECTOR

VCC1
(YEL/RED)

SG1
(GRN/WHT)

VCC1 (YEL/RED)

PCM CONNECTOR B (44P)

MAP SENSOR 3P CONNECTOR

VCC1 (YEL/RED)

MAP Sensor Circuit Low 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 ON (II).

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

HDS.

Go to step 3.

Intermittent failure, the system is OK at this

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

3. Turn the ignition switch OFF.

4. Disconnect the MAP sensor 3P connector.

5. Turn the ignition switch ON (II).

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

HDS.

Go to step 12.

Go to step 7.

7. Measure voltage between MAP sensor 3P

connector terminals No. 1 and No. 3.

Go to step 16.

Go to step 8.

8. Turn the ignition switch OFF.

9. Jump the SCS line with the HDS.

10. Disconnect PCM connector B (44P).

11. Check for continuity between PCM connector

terminal B18 and MAP sensor 3P connector
terminal No. 1.

Go to step 23.

Repair open in the wire between the PCM

(B18) and the MAP sensor, then go to step 18.

(cont’d)

Wire side of female terminals

Wire side of
female terminals

Terminal side of female terminals

Is about 3 kPa ( 1.0 in.Hg, 26 mmHg), or 0.23 V or
less indicated?

Is ther e about 5 V ?

Is ther e continuity?

Content .. 71 72 73 74 ..