SFI SYSTEM > CHECKING MONITOR STATUS |
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The purpose of the monitor result (mode 06) is to allow access to the results of on-board diagnostic monitoring tests of specific components/systems that are not continuously monitored. Examples are catalysts, evaporative emissions (EVAP) systems.
The monitor result allows the OBD II scan tool to display the monitor status, test value, minimum test limit and maximum test limit. These data are displayed after the vehicle has been driven to run the monitor.
When the test value is not between the minimum and maximum test limits, the ECM (PCM) interprets this as a malfunction. If the test value is on the borderline of the test limits, the component is likely to malfunction in the near future.
Perform the following procedures to view the monitor status. Although these procedures refer to the Lexus/Toyota diagnostic Techstream, the monitor status can be checked using a generic OBD II scan tool. Refer to your scan tool operator's manual for specific procedural information.
PERFORM MONITOR DRIVE PATTERN |
Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.
Clear the DTCs (Click here).
Operate the vehicle in accordance with the applicable drive pattern described in Readiness Monitor Drive Pattern (Click here). Do not turn the ignition switch off.
- HINT:
- The test results will be lost if the ignition switch is turned off.
ACCESS MONITOR RESULT |
Enter the following menus: Powertrain / Engine and ECT / Monitor / Current Monitor / Result.
Confirm the monitor status for each component.
- HINT:
- The monitor status for each component is displayed in the Result column.
- Pass: The component is functioning normally.
- Fail: The component is malfunctioning.
Display the test results for a monitor by selecting the icon in the Details column for that monitor.
Display the test value for an item listed under Test Results by selecting the icon in the Details column for that item.
CHECK COMPONENT STATUS |
Compare the test value with the minimum test limit (MIN LIMIT) and maximum test limit (MAX LIMIT).
If the test value is between the minimum and maximum test limits, the component is functioning normally. If not, the component is malfunctioning. The test value is usually not near the test limits. If the test value is on the borderline of the test limits, the component is likely to malfunction in the near future.
- HINT:
- The monitor result might on rare occasions be PASS even if the malfunction indicator lamp (MIL) is illuminated. This indicates the system malfunctioned on a previous driving cycle. This might be caused by an intermittent problem.
MONITOR RESULT INFORMATION |
Monitor ID | Test ID | Scaling | Unit | Description |
$01 | $93 | Multiply by 0.00012 | V | Rich to Lean response rate deterioration level |
$01 | $94 | Multiply by 0.00012 | V | Lean to Rich response rate deterioration level |
$01 | $95 | Multiply by 0.001 | Seconds | Rich to Lean delay level |
$01 | $96 | Multiply by 0.001 | Seconds | Lean to Rich delay level |
$01 | $91 | Multiply by 0.004 | mA | A/F sensor current |
Monitor ID | Test ID | Scaling | Unit | Description |
$05 | $93 | Multiply by 0.00012 | V | Rich to Lean response rate deterioration level |
$05 | $94 | Multiply by 0.00012 | V | Lean to Rich response rate deterioration level |
$05 | $95 | Multiply by 0.001 | Seconds | Rich to Lean delay level |
$05 | $96 | Multiply by 0.001 | Seconds | Lean to Rich delay level |
$05 | $91 | Multiply by 0.004 | mA | A/F sensor current |
Monitor ID | Test ID | Scaling | Unit | Description |
$02 | $08 | Multiply by 0.001 | V | Maximum sensor voltage |
$02 | $8B | Multiply by 0.001 | Seconds | 0.35 - 0.2 V sensor switch time |
$02 | $8D | Multiply by 0.001 | Seconds | Duration that sensor voltage drops to 0.2 V during fuel-cut |
$02 | $8F | Multiply by 0.0003 | g | Maximum oxygen storage capacity |
Monitor ID | Test ID | Scaling | Unit | Description |
$06 | $08 | Multiply by 0.001 | V | Maximum sensor voltage |
$06 | $8B | Multiply by 0.001 | Seconds | 0.35 - 0.2 V sensor switch time |
$06 | $8D | Multiply by 0.001 | Seconds | Duration that sensor voltage drops to 0.2 V during fuel-cut |
$06 | $8F | Multiply by 0.0003 | g | Maximum oxygen storage capacity |
Monitor ID | Test ID | Scaling | Unit | Description |
$21 | $A9 | Multiply by 0.0003 | No dimension | Oxygen storage capacity of catalyst bank 1 |
Monitor ID | Test ID | Scaling | Unit | Description |
$22 | $A9 | Multiply by 0.0003 | No dimension | Oxygen storage capacity of catalyst bank 2 |
Monitor ID | Test ID | Scaling | Unit | Description |
$31 | $BD | Multiply by 0.01 | kPa | Delta Manifold Absolute Pressure |
Monitor ID | Test ID | Scaling | Unit | Description |
$35 | $81 | Multiply by 0.01 | Second | Forced movement of oil control valve time |
Monitor ID | Test ID | Scaling | Unit | Description |
$36 | $81 | Multiply by 0.01 | Second | Forced movement of oil control valve time |
Monitor ID | Test ID | Scaling | Unit | Description |
$35 | $85 | Multiply by 0.01 | Second | Forced movement of oil control valve time |
Monitor ID | Test ID | Scaling | Unit | Description |
$36 | $85 | Multiply by 0.01 | Second | Forced movement of oil control valve time |
Monitor ID | Test ID | Scaling | Unit | Description |
$3D | $C9 | Multiply by 0.001 | kPa | Test value for small leak (P0456) |
$3D | $CA | Multiply by 0.001 | kPa | Test value for gross leak (P0455) |
$3D | $CB | Multiply by 0.001 | kPa | Test value for leak detection pump stuck OFF (P2401) |
$3D | $CD | Multiply by 0.001 | kPa | Test value for leak detection pump stuck ON (P2402) |
$3D | $CE | Multiply by 0.001 | kPa | Test value for vent valve stuck OFF (P2420) |
$3D | $CF | Multiply by 0.001 | kPa | Test value for vent valve stuck ON (P2419) |
$3D | $D0 | Multiply by 0.001 | kPa | Test value for reference orifice low flow (P043E) |
$3D | $D1 | Multiply by 0.001 | kPa | Test value for reference orifice high flow (P043F) |
$3D | $D4 | Multiply by 0.001 | kPa | Test value for purge VSV stuck closed (P0441) |
$3D | $D5 | Multiply by 0.001 | kPa | Test value for purge VSV stuck open (P0441) |
$3D | $D7 | Multiply by 0.001 | kPa | Test value for purge flow insufficient (P0441) |
Monitor ID | Test ID | Scaling | Unit | Description |
$42 | $91 | Multiply by 0.001 | Ohm | Oxygen sensor heater resistance for bank 1 sensor 2 |
$46 | $91 | Multiply by 0.001 | Ohm | Oxygen sensor heater resistance for bank 2 sensor 2 |
Monitor ID | Test ID | Scaling | Unit | Description |
$71 | $E1 | Multiply by 0.01 | g/sec. | Test value of AIR insufficient |
$71 | $E2 | Multiply by 0.01 | kPa | Test value of AIR pump stuck ON |
$71 | $E3 | Multiply by 0.01 | kPa | Test value of AIR pump stuck OFF |
$71 | $E4 | Multiply by 0.01 | kPa | Test value of AIR control valve ON |
$71 | $E5 | Multiply by 0.01 | kPa | Test value of AIR control valve OFF |
Monitor ID | Test ID | Scaling | Unit | Description |
$72 | $E1 | Multiply by 0.01 | g/sec. | Test value of AIR insufficient |
$72 | $E2 | Multiply by 0.01 | kPa | Test value of AIR pump stuck ON |
$72 | $E3 | Multiply by 0.01 | kPa | Test value of AIR pump stuck OFF |
$72 | $E4 | Multiply by 0.01 | kPa | Test value of AIR control valve ON |
$72 | $E5 | Multiply by 0.01 | kPa | Test value of AIR control valve OFF |
Monitor ID | Test ID | Scaling | Unit | Description |
$A1 | $0B | Multiply by 1 | Time | Total EWMA* misfire count of all cylinders in last ten driving cycles |
$A1 | $0C | Multiply by 1 | Time |
|
$A2 | $0B | Multiply by 1 | Time | Total EWMA* misfire count of cylinder 1 in last ten driving cycles |
$A2 | $0C | Multiply by 1 | Time |
|
$A3 | $0B | Multiply by 1 | Time | Total EWMA* misfire count of cylinder 2 in last ten driving cycles |
$A3 | $0C | Multiply by 1 | Time |
|
$A4 | $0B | Multiply by 1 | Time | Total EWMA* misfire count of cylinder 3 in last ten driving cycles |
$A4 | $0C | Multiply by 1 | Time |
|
$A5 | $0B | Multiply by 1 | Time | Total EWMA* misfire count of cylinder 4 in last ten driving cycles |
$A5 | $0C | Multiply by 1 | Time |
|
$A6 | $0B | Multiply by 1 | Time | Total EWMA* misfire count of cylinder 5 in last ten driving cycles |
$A6 | $0C | Multiply by 1 | Time |
|
$A7 | $0B | Multiply by 1 | Time | Total EWMA* misfire count of cylinder 6 in last ten driving cycles |
$A7 | $0C | Multiply by 1 | Time |
|
$A8 | $0B | Multiply by 1 | Time | Total EWMA* misfire count of cylinder 7 in last ten driving cycles |
$A8 | $0C | Multiply by 1 | Time |
|
$A9 | $0B | Multiply by 1 | Time | Total EWMA* misfire count of cylinder 8 in last ten driving cycles |
$A9 | $0C | Multiply by 1 | Time |
|
- HINT:
- *: EWMA (Exponential Weighted Moving Average) misfire counts for last 10 driving cycles (calculated) Calculation: 0.1 x (current counts) + 0.9 x (previous average) Initial value for (previous average) = 0