Acura RSX Honda Integra. Manual — part 96

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Malfunction Indicator Lamp (MIL) Indication
(In relation to Readiness Codes)

Catalytic Converter Monitor and Readiness
Code

Enable Criteria

2005-2006 Models

11-90

Fuel and Emissions Systems

How to Set Readiness Codes

The vehicle has certain ‘‘readiness codes’’ that are part
of the on-board diagnostics for the emissions systems.
If the vehicle’s battery has been disconnected or gone
dead, if the DTCs have been cleared, or if the ECM/PCM
has been reset, these readiness codes are reset. In
some states, part of the emissions testing is to make
sure these codes are set to complete. If all of them are
not set to complete, the vehicle may fail the emission
test, or the test cannot be finished.

To check if the readiness codes are set to complete,
turn the ignition switch ON (II), but do not start the
engine. The MIL will come on for 15

20 seconds. If it

then goes off, the readiness codes are complete. If it
flashes five times, one or more readiness codes are not
set to complete. To set readiness codes from
incomplete to complete, do the procedure for the
appropriate code.

To check the status of a specific DTC system, check the
OBD status in the DTC MENU with the HDS (see page
11-8). This screen displays the code, the current data list
of the enable criteria, and the status of the readiness
testing.

NOTE:

• Do not turn the ignition switch off during the

procedure.

• All readiness codes are cleared when the battery is

disconnected or when the ECM/PCM is cleared with
the HDS or a scan tool.

• Low ambient temperatures or excessive stop-and-go

traffic may increase the drive time needed to switch
the readiness code from incomplete to complete.

• The readiness code will not switch to complete until

all the enable criteria are met.

• If a fault in the secondary HO2S system caused the

MIL to come on, the readiness code cannot be set to
complete until you correct the fault.

• ECT at 158 °F (70 °C) or higher.
• Intake air temperature (IAT) at 20 °F (

7 °C) or higher.

• Vehicle speed sensor (VSS) reads more than 25 mph

(40 km/h).

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Procedure

When the HDS is used (2002-2006 Models)

When a scan tool is used (2002-2004 Models)

Evaporative Emission (EVAP) Control
System Monitor and Readiness code

Enable Criteria

11-91

1. Connect the HDS to the vehicle’s data link

connector (DLC), and bring up the READINESS
CODEs screen for Catalyst in the DTCs MENU.

2. Start the engine.

3. Test-drive the vehicle under stop-and-go conditions

with short periods of steady cruise. After about
5 miles (8 km), the readiness code should switch to
complete.

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

check for a Temporary DTC with the HDS. If there is
no DTC, one or more of the enable criteria were
probably not met; repeat the procedure.

1. Connect a scan tool to the vehicle’s data link

connector (DLC), and bring up the tool’s generic
OBD II mode.

2. Start the engine.

3. Test-drive the vehicle under stop-and-go conditions

with short periods of steady cruise. After about
5 miles (8 km), the readiness code should switch
from incomplete to complete.

4. If the readiness code is still set to incomplete, check

for a Temporary DTC. If there is no DTC, one or
more of the enable criteria were probably not met;
repeat the procedure.

NOTE:

• All readiness codes are cleared when the battery is

disconnected or when the ECM/PCM is cleared with
the HDS or a scan tool (2002-2004 models).

• The enable criteria must be repeated if the intake air

temperature (IAT) drops lower than 36 °F (20 °C) from
its value at engine start up.

• At engine start up, ECT and IAT are higher than 32 °F

(0 °C), but lower than 95 °F (35 °C).

• At engine start up, the ECT and IAT are within 12 °F

(7 °C) of each other.

• Battery voltage is higher than 10.5 V.
• Engine at idle.
• ECT sensor between 176 °F (80 °C) and 212 °F (100 °C).
• MAP sensor less than 46.6 kPa (14 in.Hg, 350 mmHg).
• Vehicle speed 0 mph (0 km/h).
• IAT sensor between 32 °F (0 °C) and 212 °F (100 °C).

(cont’d)

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Procedure

When the HDS is used (2002-2006 Models)

When a scan tool is used (2002-2004 Models)

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

Enable Criteria

11-92

Fuel and Emissions Systems

How to Set Readiness Codes (cont’d)

1. Connect the HDS to the vehicle’s data link

connector (DLC).

2. Start the engine.

3. Select EVAP TEST in the INSPECTION MENU with

the HDS, then select the FUNCTION TEST in the
EVAP TEST MENU.

• If the functions are normal, readiness is complete.
• If the functions are not normal, go to the next

step.

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

check for a Temporary DTC. If there is no DTC, one
or more of the enable criteria were probably not
met; repeat the procedure.

1. Connect a scan tool to the vehicle’s data link

connector (DLC), and bring up the tool’s generic
OBD II mode.

2. Start the engine.

3. Test-drive the vehicle under stop-and-go conditions

with short periods of steady cruise. After about
2.5 miles (4.0 km), the readiness code should
switch from incomplete to complete.

4. If the readiness code is still set to incomplete, check

for a Temporary DTC. If there is no DTC, one or
more of the enable criteria were probably not met;
repeat the procedure.

NOTE:

• Do not turn the ignition switch off during the

procedure.

• All readiness codes are cleared when the battery is

disconnected or when the ECM/PCM is cleared with
the HDS or a scan tool.

ECT at 140 °F (60 °C) or higher.

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Procedure

When the HDS is used (2002-2006 Models)

When a scan tool is used (2002-2004 Models)

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

Procedure

Misfire Monitor and Readiness Code

Fuel System Monitor and Readiness Code

Comprehensive Component Monitor and
Readiness Code

11-93

1. Start the engine.

2. Connect the HDS to the vehicle’s data link

connector (DLC).

3. Test-drive the vehicle under stop-and-go conditions

with short periods of steady cruise. During the
drive, decelerate (with the throttle fully closed) for
5 seconds. After about 3.5 miles (5.6 km), the
readiness code should switch from incomplete to
complete.

4. Check the readiness codes screen for the Air Fuel

Ratio (A/F) Sensor in the DTCs MENU with the HDS.

• If the screen shows complete, readiness is

complete.

• If the screen shows not complete, go to the next

step.

5. Check for a Temporary DTC. If there is no DTC, the

enable criteria was probably not met. Select the
DATA LIST Menu. Check the ECT in the ALL DATA
LIST with the HDS. If the ECT is lower than 140 °F
(60 °C), run the engine until it is higher than 140 °F
(60 °C), then repeat the procedure.

1. Connect a scan tool to the vehicle’s data link

connector (DLC), and bring up the tool’s generic
OBD II mode.

2. Start the engine.

3. Test-drive the vehicle under stop-and-go conditions

with short periods of steady cruise. During the
drive, decelerate (wirh the throttle fully closed) for
5 seconds. After about 3.5 miles (5.6 km), the
readiness code should switch from incomplete to
complete.

4. If the readiness code is still set to incomplete, check

for a Temporary DTC. If there is no DTC, the enable
criteria was probably not met; repeat the procedure.

NOTE: All readiness codes are cleared when the battery
is disconnected or when the ECM/PCM is cleared with
the HDS or a scan tool.

1. Connect the HDS or a scan tool to the vehicle’s data

link connector (DLC). Bring up the tool’s generic
OBD II mode (scan tool only).

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

readiness code should switch from incomplete to
complete.

3. If the readiness code is still set to incomplete, 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.

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