Monitor Result

Detailed information on Checking Monitor Status (See page ES-38).

The test value and test limit information are described as shown in the following table. This information is included under MONITOR RESULT in the emissions-related DTC sections:

• MID (Monitor Identification Data) is assigned to each emissions-related component.

• TID (Test Identification Data) is assigned to each test value.

• Scaling is used to calculate the test value indicated on generic OBD II scan tools. Thermostat

MID

TID

Scaling

Description of Test Value

Minimum Test Limit

Maximum Test Limit

$3D

$C9

Multiply by 0.001 [kPa]

Test value for small leak (P0456) Refer to pressure D*

Minimum test limit for small leak

Maximum test limit for small leak

$3D

$CA

Multiply by 0.001 [kPa]

Test value for gross leak (P0455) Refer to pressure E*

Minimum test limit for gross leak

Maximum test limit for gross leak

$3D

$CB

Multiply by 0.001 [kPa]

Test value for leak detection pump stuck OFF (P2401)

Refer to pressure A*

Minimum test limit for leak detection pump stuck OFF

Maximum test limit for leak detection pump stuck OFF

$3D

$CD

Multiply by 0.001 [kPa]

Test value for leak detection pump stuck ON (P2402)

Refer to pressure A*

Minimum test limit for leak detection pump stuck ON

Maximum test limit for leak detection pump stuck ON

$3D

$CE

Multiply by 0.001 [kPa]

Test value for vent valve stuck OFF (vent) (P2420)

Refer to pressure C

Minimum test limit for vent valve stuck ON

Maximum test limit for vent valve stuck ON

MID

TID

Scaling

Description of Test Value

Minimum Test Limit

Maximum Test Limit

$3D

$CF

Multiply by 0.001 [kPa]

Test value for vent valve stuck ON (P2419) Refer to pressure A*

Minimum test limit for vent valve stuck OFF

Maximum test limit for vent valve stuck OFF

$3D

$D0

Multiply by 0.001 [kPa]

Test value for reference orifice low flow (P043E)

Refer to pressure B*

Minimum test limit for reference orifice low flow

Maximum test limit for reference orifice low flow

$3D

$D1

Multiply by 0.001 [kPa]

Test value for reference orifice high flow (P043F)

Refer to pressure A*

Minimum test limit for reference orifice high flow

Maximum test limit for reference orifice high flow

$3D

$D4

Multiply by 0.001 [kPa]

Test value for purge VSV stuck closed (P0441) Refer to pressure F*

Minimum test limit for purge VSV stuck closed

Maximum test limit for purge VSV stuck closed

$3D

$D5

Multiply by 0.001 [kPa]

Test value for purge VSV stuck open (P0441) Refer to pressure E*

Minimum test limit for purge VSV stuck open

Maximum test limit for purge VSV stuck open

$3D

$D7

Multiply by 0.001 [kPa]

Test value for purge flow (P0441) Refer to pressure G*

Minimum test limit for purge flow

Maximum test limit for purge flow

Pressures A to G are indicated as shown in the diagram below.

Key-off Monitor

Monitor Start

Purge VSV

Vent Valve

Pump Atmosphere (0 kPa)

Elapsed Time (Second)

ON

ON

EVAP Pressure (Reference)

Criterion 2

Elapsed Time (Second)

Within 15 minutes

(Criterion 4 x 0.2) -Criterion 3 (0.3 kPa) Criterion 4_

(Criterion 4 x 0.2) -Criterion 3 (0.3 kPa) Criterion 4_

Criterion 6 (0.3 kPa)

Within 15 minutes

Purge Flow Monitor Sequence

Purge VSV Vent Valve

ON (Closed)

EVAP Pressure (Reference)

If pressure change in sequence 1 is greater than criterion 7, purge flow monitor is completed (functioning normally).

Criterion 8 (0.5 kPa)

If pressure change in sequence 1 is smaller than criterion 7 and pressure change in sequence 2 is smaller than criterion 8, purge flow is insufficient.

A106747E08

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