Diagnostic Mode 6: Check Test Of Parts Not Constantly Monitored
Mode 6: Check Test Results Of Components That Are Not Continuously Monitored
This diagnostic mode displays the test results of emission relevant components and systems which are not continuously monitored.
The values of the individual test results must reach the specified value or must be within the min.- and max.- limits.
Test-ID Components
01: Catalytic converter
03: Secondary Air Injection (AIR) system
05: Tank ventilation system
Test-ID 01: Catalytic converter
Test requirements:
- No DTCs in DTC memory; check DTC memory "Mode 3: Check DTC memory". Diagnostic Mode 3: Check DTC Memory
- Coolant temperature at least 80 degree C "Mode 1: Check measuring values "; "PID 05: Cooling fluid temperature". Diagnostic Mode 1: Check Measured Values
Work procedure
CAUTION: To reduce the risk of accident during road tests, always observe safety precautions. Service Precautions
- Connect diagnostic tester. Diagnostic Tester, Connecting
- Perform a 15 minute road test in the highest gear or in the highest driving mode on a level driving surface.
The following operating conditions must be met during this road test:
- Engine speed 1800 to 2200 RPM, See "Mode 1: Check measuring values ";"PID 12: Engine rotations per minute". Diagnostic Mode 1: Check Measured Values
- Vehicle speed constant 90 km/h See "Mode 1: Check measuring values "; "PID 13: Vehicle speed". Diagnostic Mode 1: Check Measured Values
- Let engine run at idle.
- In diagnostic function "33 - OBD", select "Mode 6: Check test results of components that are not continuously monitored".
- Select the "Test-ID 01: Catalytic converter".
- Check specified values at idle.
NOTE: Bank 1 = cylinder bank 1 in direction of travel, right; Bank 2 = cylinder bank 2 in direction of travel, left.
Catalytic converter Specified value max.
Bank 1 0.250
Bank 2 0.250
- End diagnosis and switch ignition off.
If the specified values are exceeded:
- Replace the respective front exhaust pipe with catalytic converter:
- Left front exhaust pipe.
- Right front exhaust pipe.
Final procedures
After repair work, the following work steps must be performed in the mentioned sequence:
1 - Check DTC memory "Mode 3: Check DTC memory". Diagnostic Mode 3: Check DTC Memory
2 - If necessary, erase DTC memory See "Mode 4: Reset/erase diagnostic data". Diagnostic Mode 4: Reset/Erase Diagnostic Data
3 - Generate readiness code. Readiness Code, Generating
- End diagnosis and switch ignition off.
Test-ID 03: Secondary Air Injection (AIR) system
Test requirements:
- No DTCs in DTC memory; check DTC memory "Mode 3: Check DTC memory". Diagnostic Mode 3: Check DTC Memory
Let vehicle cool off with the ignition switched off until the following conditions are met:
- Intake air temperature 10 to 50 degree C "Mode 1: Check measuring values "; "PID 15: Intake air temperature". Diagnostic Mode 1: Check Measured Values
- Coolant temperature approximately Intake Air Temperature (10 to 50 degree C) "Mode 1: Check measuring values "; "PID 05: Cooling fluid temperature". Diagnostic Mode 1: Check Measured Values
Work procedure
- Connect diagnostic tester. Diagnostic Tester, Connecting
- Start engine and let run at idle for at least 15 minutes.
- In diagnostic function "33 - OBD", select "Mode 6: Check test results of components that are not continuously monitored".
- Select the "Test-ID 03: Secondary Air Injection (AIR) system"
- Check specified values at idle.
NOTE: Bank 1 = cylinder bank 1 in direction of travel, right; Bank 2 = cylinder bank 2 in direction of travel, left.
Secondary Air Injection (AIR) System Specified value
Very low secondary air mass
- Bank 1 at least 0.297
- Bank 2 at least 0.297
- End diagnosis and switch ignition off.
If the specified values are not reached:
- Check secondary air system for proper seal. Testing and Inspection
- Check Secondary Air Injection (AIR) Pump Motor -V101-. With Generic Scan Tool
Final procedures
After repair work, the following work steps must be performed in the mentioned sequence:
1 - Check DTC memory "Mode 3: Check DTC memory". Diagnostic Mode 3: Check DTC Memory
2 - If necessary, erase DTC memory "Mode 4: Reset/erase diagnostic data". Diagnostic Mode 4: Reset/Erase Diagnostic Data
3 - Generate readiness code. Readiness Code, Generating
- End diagnosis and switch ignition off.
Test-ID 05: Tank ventilation system
Test requirements:
- No DTCs in DTC memory; check DTC memory "Mode 3: Check DTC memory". Diagnostic Mode 3: Check DTC Memory
- Coolant temperature 80 to 110 degree C "Mode 1: Check measuring values ";"PID 05: Cooling fluid temperature". Diagnostic Mode 1: Check Measured Values
- Throttle valve angle 10.0 to 20.0 % See "Mode 1: Check measuring values "; "PID 17: Throttle valve position (absolute)". Diagnostic Mode 1: Check Measured Values
Work procedure
- Connect diagnostic tester. Diagnostic Tester, Connecting
- Start engine and let run at idle for at least 15 minutes.
- In diagnostic function "33 - OBD", select See "Mode 6: Check test results of components that are not continuously monitored".
- Select the "Test-ID 05: Tank ventilation system".
- Check specified values at idle.
Tank ventilation system Specified value
Deviation of oxygen sensor min: 0.05
control in direction "lean"
Deviation of oxygen sensor min: 0.05
control in direction "rich"
- End diagnosis and switch ignition off.
If the specified values are not reached:
- EVAP canister system, checking for proper seal. Testing and Inspection
- Check Leak detection pump (LDP) -V144-. Testing and Inspection
Final procedures
After repair work, the following work steps must be performed in the mentioned sequence:
1 - Check DTC memory "Mode 3: Check DTC memory". Diagnostic Mode 3: Check DTC Memory
2 - If necessary, erase DTC memory "Mode 4: Reset/erase diagnostic data". Diagnostic Mode 4: Reset/Erase Diagnostic Data
3 - Generate readiness code. Readiness Code, Generating
- End diagnosis and switch ignition off.