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Checking Monitor Status

The purpose of the monitor result (mode 06) is to allow access to the results for on-board diagnostic monitoring tests of specific components/systems that are not continuously monitored. Examples are the catalyst, evaporative emissions (EVAP) and thermostat.

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 test limit and maximum test limit, the ECM (included in the hybrid vehicle control ECU) interprets this as a malfunction. When the component is not malfunctioning, if the difference of the test value and test limit is very small, the component may malfunction in the near future.

Follow the following instructions to view the monitor status. Although this instruction references the Techstream, it can be checked using a generic OBD II scan tool. Refer to your scan tool operator's information for specific procedures.

  1. PERFORM MONITOR DRIVE PATTERN 

    The monitor results and test values can be checked with the OBD II scan tool or Techstream. The engine control module (ECM) (included in the hybrid vehicle control ECU) monitors the emissions-related components such as the thermostat, catalyst converter and evaporative emissions (EVAP), and determines whether they are functioning normally or not. When monitoring is finished, the ECM stores the monitor results and the test values. The monitor result indicates whether the component is functioning normally or not. The test value is the value that was used to determine the monitor result. If the test value is outside of the test limit (malfunction criterion), the ECM determines the component is malfunctioning. Some emissions-related components have multiple test values to determine the monitor result. If one of these test values is outside of the test limit, the ECM determines that the component is malfunctioning.

    1. Connect the Techstream to the DLC3.
    2. Turn the power switch on (IG).
    3. Turn the Techstream on.
    4. Clear the DTCs (See READINESS MONITOR DRIVE PATTERN ).
    5. Run the vehicle in accordance with the applicable drive pattern described in READINESS MONITOR DRIVE PATTERN (See READINESS MONITOR DRIVE PATTERN  ). Do not turn the power switch off.
    NOTE: The test results will be lost if the power switch is turned off.
  2. ACCESS MONITOR RESULT 
    1. Select the following menus:

      Powertrain / Engine and ECT / Monitor / Result. The monitor status appears after the component name.

      • Pass: The component is functioning normally.
      • Fail: The component is malfunctioning.
    2. Check that each component is either Pass or Fail.
    3. Select the component and press ENTER. The accuracy test value appears if the monitor status is either Pass or Fail.

      HINT:

      The monitor result might show a Pass on rare occasions even if the Malfunction Indicator Lamp (MIL) is illuminated. This indicates that the system was malfunctioning in the previous driving cycle. This might be caused by an intermittent problem.

  3. CHECK COMPONENT STATUS 
    1. Compare the test value with the minimum test limit (MIN LIMIT) and maximum test limit (MAX LIMIT).
    2. If the test value is between the minimum test limit and maximum test limit, the component is functioning normally. If not, the component is malfunctioning. The test value is usually significantly higher or lower than the test limit. If the test value is on the borderline of the test limit, the component may malfunction in the near future.

    HINT:

    The monitor result might show a Pass on rare occasions even if the Malfunction Indicator Lamp (MIL) is illuminated. This indicates that the system was malfunctioning in the previous driving cycle. This might be caused by an intermittent problem.

  4. MONITOR RESULT INFORMATION 

    If you use a generic scan tool, multiply the value by the scaling value listed below.

    Air Fuel Ratio Sensor Bank 1 Sensor 1 

MONITOR RESULT INFORMATION

Monitor ID Test ID Scaling Unit Description
$01 $8E Multiply by 0.001 V A/F sensor deterioration level
$01 $91 Multiply by 0.004 mA A/F sensor current

Air Fuel Ratio Sensor Bank 2 Sensor 1 

MONITOR RESULT INFORMATION

Monitor ID Test ID Scaling Unit Description
$05 $8E Multiply by 0.001 V A/F sensor deterioration level
$05 $91 Multiply by 0.004 mA A/F sensor current

Heated Oxygen Sensor Bank 1 Sensor 2 

MONITOR RESULT INFORMATION

Monitor ID Test ID Scaling Unit Description
$02 $07 Multiply by 0.001 V Minimum sensor voltage
$02 $08 Multiply by 0.001 V Maximum sensor voltage
$02 $8B Multiply by 0.001 Seconds 0.35 to 0.2 V sensor switch time
$02 $8D Multiply by 0.001 Seconds Time from fuel out occurs to sensor output 0.2 V
$02 $8F Multiply by 0.0003 9 Maximum oxygen storage capacity

Heated Oxygen Sensor Bank 2 Sensor 2 

MONITOR RESULT INFORMATION

Monitor ID Test ID Scaling Unit Description
$06 $07 Multiply by 0.001 V Minimum sensor voltage
$06 $08 Multiply by 0.001 V Maximum sensor voltage
$06 $8B Multiply by 0.001 Seconds 0.35 to 0.2 V sensor switch time
$06 $8D Multiply by 0.001 Seconds Time from fuel out occurs to sensor output 0.2 V
$06 $8F Multiply by 0.0003 g Maximum oxygen storage capacity

Catalyst - Bank 1 

MONITOR RESULT INFORMATION

Monitor ID Test ID Scaling Unit Description
$21 $A9 Multiply by 0.0003 No dimension Oxygen storage capacity of catalyst - Bank 1

Catalyst - Bank 2 

MONITOR RESULT INFORMATION

Monitor ID Test ID Scaling Unit Description
$22 $A9 Multiply by 0.0003 No dimension Oxygen storage capacity of catalyst - Bank 2

EVAP 

MONITOR RESULT INFORMATION

Monitor ID Test ID Scaling Unit Description
$3D $C9 Multiply by 0.001 kPa Test value for small leak (P0456)
$3D $CB Multiply by 0.001 kPa Test value for leak detection pump OFF stuck (P2401)
$3D $CD Multiply by 0.001 kPa Test value for leak detection pump ON stuck (P2402)
$3D $CE Multiply by 0.001 kPa Test value for vent valve OFF stuck (P2420)
$3D $CF Multiply by 0.001 kPa Test value for vent valve ON stuck (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 close stuck (P0441)
$3D $D5 Multiply by 0.001 kPa Test value for purge VSV open stuck (P0441)
$3D $D7 Multiply by 0.001 kPa Test value for purge flow insufficient (P0441)
$3D $D8 Multiply by 0.001 kPa Test value for canister small leak (P1420)
$3D $D9 Multiply by 0.001 kPa Test value for canister gross leak (P1421)
$3D $DA Multiply by 0.001 kPa Test value for fuel tank small leak (P1422)
$3D $DB Multiply by 0.001 kPa Test value for fuel tank gross leak (P1423)
$3D $DC Multiply by 0.001 kPa Test value for tank closed valve close stuck (P2451)
$3D $DD Multiply by 0.001 kPa Test value for tank closed valve open stuck (P2450)

Heated Oxygen Sensor Heater 

MONITOR RESULT INFORMATION

Monitor ID Test ID Scaling Unit Description
$42 $91 Multiply by 0.001 Ohm Oxygen sensor heater resistance bank 1 sensor 2
$46 $91 Multiply by 0.001 Ohm Oxygen sensor heater resistance bank 2 sensor 2

Misfire 

MONITOR RESULT INFORMATION

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
EWMA: Exponential Weighted Moving Average
$A1 $0C Multiply by 1 Time
  • When power switch is ON (IG), total misfire count of all cylinders in last driving cycle is displayed.
  • While engine is running, total misfire count of all cylinders in current driving cycle is displayed.
$A2 $0B Multiply by 1 Time Total EWMA misfire count of cylinder 1 in last ten driving cycles
$A2 $0C Multiply by 1 Time
  • When power switch is ON (IG), total misfire count of cylinder 1 in last driving cycle is displayed.
  • While engine is running, total misfire count of cylinder 1 in current driving cycle is displayed.
$A3 SOB Multiply by 1 Time Total EWMA misfire count of cylinder 2 in last ten driving cycles
$A3 $0C Multiply by 1 Time
  • When power switch is ON (IG), total misfire count of cylinder 2 in last driving cycle is displayed.
  • While engine is running, total misfire count of cylinder 2 in current driving cycle is displayed.
$A4 $0B Multiply by 1 Time Total EWMA misfire count of cylinder 3 in last ten driving cycles
$A4 $0C Multiply by 1 Time
  • When power switch is ON (IG), total misfire count of cylinder 3 in last driving cycle is displayed.
  • While engine is running, total misfire count of cylinder 3 in current driving cycle is displayed.
$A5 $0B Multiply by 1 Time Total EWMA misfire count of cylinder 4 in last ten driving cycles
$A5 $0C Multiply by 1 Time
  • When power switch is ON (IG), total misfire count of cylinder 4 in last driving cycle is displayed.
  • While engine is running, total misfire count of cylinder 4 in current driving cycle is displayed.
$A6 S0B Multiply by 1 Time Total EWMA misfire count of cylinder 5 in last ten driving cycles
$A6 $0C Multiply by 1 Time
  • When power switch is ON (IG), total misfire count of cylinder 5 in last driving cycle is displayed.
  • While engine is running, total misfire count of cylinder 5 in current driving cycle is displayed.
$A7 S0B Multiply by 1 Time Total EWMA misfire count of cylinder 6 in last ten driving cycles
$A7 $0C Multiply by 1 Time
  • When power switch is ON (IG), total misfire count of cylinder 6 in last driving cycle is displayed.
  • While engine is running, total misfire count of cylinder 6 in current driving cycle is displayed.
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