Checking Monitor Status [06/2016 - ]

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 and 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 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.

ACCESS MONITOR RESULT
1. Enter the following menus: Generic OBD II.
2. 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.
3. Display the test results and test values for a monitor by selecting the icon in the Details column for that monitor.
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 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

When using a generic scan tool, multiply the test value by the scaling value.

Refer to "Monitor Result" in each DTC related to the monitor (Refer to DIAGNOSTIC TROUBLE CODE CHART [06/2016 - 03/2017] , or refer to DIAGNOSTIC TROUBLE CODE CHART [03/2017 - 07/2018] , or refer to DIAGNOSTIC TROUBLE CODE CHART [07/2018 - ] ).

Advance / Retarded Intake Side (for Bank 1)

Monitor ID	Test ID	Scaling	Unit	Description
$35	$8B	Multiply by 0.5	°CA	VVT slow response (Advance)
$35	$8C	Multiply by 0.5	°CA	VVT slow response (Retarded)
$35	$D3	Multiply by 0.5	°CA	VVT system diagnosis (Abnormal deviation during target mid-lock request)
$35	$D4	Multiply by 0.5	°CA	VVT system diagnosis (Cumulative Abnormal deviation during target mid-lock request)
$35	$D5	Multiply by 0.5	°CA	VVT system diagnosis (Abnormal deviation of target)

Advance / Retarded Intake Side (for Bank 2)

Monitor ID	Test ID	Scaling	Unit	Description
$36	$8B	Multiply by 0.5	°CA	VVT slow response (Advance)
$36	$8C	Multiply by 0.5	°CA	VVT slow response (Retarded)
$36	$D3	Multiply by 0.5	°CA	VVT system diagnosis (Abnormal deviation during target mid-lock request)
$36	$D4	Multiply by 0.5	°CA	VVT system diagnosis (Cumulative Abnormal deviation during target mid-lock request)
$36	$D5	Multiply by 0.5	°CA	VVT system diagnosis (Abnormal deviation of target)

Advance / Retarded Exhaust Side (for Bank 1)

Monitor ID	Test ID	Scaling	Unit	Description
$35	$8D	Multiply by 0.5	°CA	VVT slow response (Retarded)
$35	$8E	Multiply by 0.5	°CA	VVT slow response (Advance)
$35	$D6	Multiply by 0.5	°CA	VVT system diagnosis (Abnormal deviation of target)

Advance / Retarded Exhaust Side (for Bank 2)

Monitor ID	Test ID	Scaling	Unit	Description
$36	$8D	Multiply by 0.5	°CA	VVT slow response (Retarded)
$36	$8E	Multiply by 0.5	°CA	VVT slow response (Advance)
$36	$D6	Multiply by 0.5	°CA	VVT system diagnosis (Abnormal deviation of target)

A/F Sensor Bank 1 Sensor 1

Monitor ID	Test ID	Scaling	Unit	Description
$01	$84	Multiply by 0.0000305	No dimension	A/F sensor minimum value
$01	$85	Multiply by 0.0000305	No dimension	A/F sensor maximum value
$01	$CF	Multiply by 0.0039062	No dimension	A/F sensor fluctuation (Width)
$01	$CD	Multiply by 0.0039062	No dimension	A/F sensor fluctuation (Time)
$01	$91	Multiply by 0.0039062	No dimension	Rich to lean delay level
$01	$92	Multiply by 1	ms	Rich / lean time ratio
$01	$A3	Multiply by 0.0039062	No dimension	Lean to rich delay level
$01	$A4	Multiply by 1	ms	Lean / rich time ratio
$01	$AC	Multiply by 1	ms	Waiting time for rich side
$01	$AD	Multiply by 1	ms	Rich / lean time difference
$01	$AE	Multiply by 1	ms	Waiting time for lean side
$01	$AF	Multiply by 1	ms	Lean / rich time difference

HO2 Sensor Bank 1 Sensor 2

Monitor ID	Test ID	Scaling	Unit	Description
$02	$05	Multiply by 1	ms	Rich to lean sensor threshold time (calculated)
$02	$06	Multiply by 1	ms	Lean to rich sensor threshold time (calculated)
$02	$07	Multiply by 0.001	V	Minimum sensor voltage for test cycle (calculation)
$02	$08	Multiply by 0.001	V	Maximum sensor voltage for test cycle (calculation)
$02	$A5	Multiply by 0.001	kPa	Voltage
$02	$D1	Multiply by 1	ms	Rich to Lean delayed response
$02	$D2	Multiply by 1	No dimension	Lean to Rich delayed response

Catalyst

Monitor ID	Test ID	Scaling	Unit	Description
$21	$89	Multiply by 0.0039062	No dimension	Oxygen storage capacity of catalyst

EVAP Monitor (0.020")

Monitor ID	Test ID	Scaling	Unit	Description
$3C	$C1	Multiply by 0.25	Pa	Mode 4-1 test result
$3C	$C2	Multiply by 0.25	Pa	Mode 4-2 test result
$3C	$C3	Multiply by 0.25	Pa	Mode 5 test result
$3C	$C4	Multiply by 0.25	Pa	Mode 7 test result
$3C	$C5	Multiply by 0.25	Pa	Mode 8 test result
$3C	$C6	Multiply by 10	ms	Mode 9 test result
$3C	$C7	Multiply by 0.25	Pa	Mode 13 test result
$3C	$C8	Multiply by 0.25	Pa	Mode 15-1 test result
$3C	$C9	Multiply by 0.25	Pa	Mode 15-2 test result
$3C	$CA	Multiply by 0.25	Pa	Mode 16 test result

Purge Flow Monitor

Monitor ID	Test ID	Scaling	Unit	Description
$3D	$E2	Multiply by 0.25	Pa	Pressure

A/F Sensor Heater Bank 1 Sensor 1

Monitor ID	Test ID	Scaling	Unit	Description
$41	$9B	Multiply by 1	Ω	Oxygen sensor heater impedance

Oxygen Sensor Heater Bank 1 Sensor 2

Monitor ID	Test ID	Scaling	Unit	Description
$42	$A2	Multiply by 1	Time	A/F sensor heater characteristics

Misfire

Monitor ID	Test ID	Scaling	Unit	Description
$A1	$0B	Multiply by 1	Time	Total EWMA* misfire count of all cylinders in last driving cycle
$A1	$0C	Multiply by 1	Time	When ignition switch ON, 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 ignition switch ON, 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	$0B	Multiply by 1	Time	Total EWMA* misfire count of cylinder 2 in last ten driving cycles
$A3	$0C	Multiply by 1	Time	When ignition switch ON, 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 ignition switch ON, 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 ignition switch ON, 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.

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