Catalyst Monitor
OBD System Description - Catalyst MonitorCatalyst System Low Efficiency Bank 1 DTC
P0420 Refer to DTC P0420: Catalyst System Low Efficiency Bank 1. P0420
MONITOR STRATEGY DESCRIPTION
There is a catalyst diagnosis with separate Cat-Diag values for each exhaust gas bank.If one exhaust bank value is over calibrated threshold, this catalyst is detected as faulty. That means it one catalyst is aged over OBD limit the MIL is switched on.
MALFUNCTION CRITERIA AND THRESHOLD VALUE(S)
Separate comparison of Catalyst diagnosis value in OSC range with threshold (1,00) and separate failure for every cylinder bank is stored.
SECONDARY PARAMETERS AND ENABLE CONDITIONS
Enable Conditions:
Start of a driving cycle
Coolant Temp. > 45 degrees C
398.85 degrees C < CAT Temp. < 862.85 degrees C 0 km/h < Vehicle Speed < 160 km/h BARO > 599.99 hPa
(table from 95 mg/stk up to 800 mg/stk) < MAF < (table from 10 mg/stk up to 340.01 mg/stk) This diagnostic is inhibited if any of the following DTC's are present: Cam sensor errors Crank sensor errors ECT errors MAF error MAP error CPS error Lambda trim control error Vehicle speed errors O2 sensor errors TP errors Fuel system diagnosis errors Misfire errors
TIME LENGTH AND FREQUENCY
Recurrence rate: 20 ms
Catalyst System Low Efficiency Bank 2 DTC
P0430 Refer to DTC P0430: Catalyst System Low Efficiency Bank 2. P0430
MONITOR STRATEGY DESCRIPTION
There is a catalyst diagnosis with separate Cat-Diag values for each exhaust gas bank.If one exhaust bank value is over calibrated threshold, this catalyst is detected as faulty. That means it one catalyst is aged over OBD limit the MIL is switched on.
MALFUNCTION CRITERIA AND THRESHOLD VALUE(S)
Separate comparison of Catalyst diagnosis value in OSC range with threshold (1,00) and separate failure for every cylinder bank is stored.
SECONDARY PARAMETERS AND ENABLE CONDITIONS
Enable Conditions: Start of a driving cycle Coolant Temp. > 45 degrees C
398.85 degrees C < CAT Temp. < 862.85 degrees C 0 km/h < Vehicle Speed < 160 km/h BARO > 599.99 hPa
(table from 95 mg/stk up to 800 mg/stk) < MAF < (table from 10 mg/stk up to 340.01 mg/stk) This diagnostic is inhibited if any of the following DTC's are present: Cam sensor errors Crank sensor errors ECT errors MAF error MAP error CPS error Lambda trim control error Vehicle speed errors O2 sensor errors TP errors Fuel system diagnosis errors Misfire errors
TIME LENGTH AND FREQUENCY
Recurrence rate: 20 ms
Wrong code received from ICU DTC
P1629 Refer to DTC P1629: Wrong Code Received from Immobilizer Control Unit. P1629
MONITOR STRATEGY DESCRIPTION
Wrong code received from
MALFUNCTION CRITERIA AND THRESHOLD VALUE(S)
Save return:
Internal detected to ETC Hardware
TIME LENGTH AND FREQUENCY
Application recurrence: 10 ms
Post Catalyst Fuel Trim System Diagnosis Bank 1 DTC
P2096 Refer to DTC P2096: Post Catalyst Fuel Trim System Low Limit Bank 1. P2096
P2097 Refer to DTC P2097: Post Catalyst Fuel Trim System High Limit Bank 1. P2097
MONITOR STRATEGY DESCRIPTION
To fulfill the legal requirements of the OBDII lambda sensor diagnosis, the trim of the lambda control by the lambda sensor signal downstream of the catalytic converter must be monitored in addition to the diagnosis of the lambda sensor upstream of the catalytic converter (by determining the switching times and the control frequency). Faulty behavior of the lambda sensors upstream or downstream the catalytic converter exists if sensor limits are reached and in this way one of the emission values in the FTP test is exceeded by 1.5 fold.
MALFUNCTION CRITERIA AND THRESHOLD VALUE(S)
Lean:
The I-share of the adaptation value > 300 ms
For the first time
=> Increment time counter until counter > 1 s Then an error is detected. Or
A lambda set-point shifting is or was active and Minimum mass air flow integral outside of PUC reached. => Error detected Rich: The I-share of the adaptation value < -300 ms
For the first time => Increment time counter until counter > 1 s
Then an error is detected
Or
A lambda set-point shifting is or was active and Minimum mass air flow integral in PUC reached. => Error detected
SECONDARY PARAMETERS AND ENABLE CONDITIONS
Enable Conditions:
No Throttle position sensor error
And no Throttle position sensor plausibility error
and no Catalyst or diagnosis error and no Injection Valve error
and no Ignition Coil error
and no Canister purge solenoid error
and no Functional check Canister purge solenoid
and no Coolant temperature sensor error
and no Mass air flow sensor error
and no Manifold pressure sensor error
and no Crankshaft sensor error
and no Camshaft sensor error
and no Fuel system diagnosis error
and no Fuel system diagnosis error
and no O2 sensor up output stage OBDI error
and no O2 sensor down error
and no misfire error
and Battery Voltage conditions fulfilled
and no EGR error
active RAMP_OPEN operation = false (Activation flag of dynamic fuel trim = true or lambda set-point shifting is or was active = active)
Time counter (to reset the Total duration over Maximum limit of LAM-P-jump delay time from I-share and
Total duration over Minimum limit of LAM-P-jump delay time from I-share) < 3 s Rich: Enable Conditions: No Throttle position sensor error
And no Throttle position sensor plausibility error
and no Catalyst or diagnosis error
and no Injection Valve error
and no Ignition Coil error
and no Canister purge solenoid error
and no Functional check Canister purge solenoid
and no Coolant temperature sensor error
and no Mass air flow sensor error
and no Manifold pressure sensor error
and no Crankshaft sensor error
and no Camshaft sensor error
and no Fuel system diagnosis error
and no Fuel system diagnosis error
and no O2 sensor up output stage OBDI error
and no O2 sensor down error and no misfire error
and Battery Voltage conditions fulfilled
and no EGR error active RAMP_OPEN operation = false (Activation flag of dynamic fuel trim = true or lambda set-point shifting is or was active = active)
Time counter (to reset the Total duration over Maximum limit of LAM-P-jump delay time from I-share and
Total duration over Minimum limit of LAM-P-jump delay time from I-share) < 3 s
TIME LENGTH AND FREQUENCY
Recurrence rate: 100 ms
Post Catalyst Fuel Trim System Diagnosis Bank 2 DTC
P2098 Refer to DTC P2098: Post Catalyst Fuel Trim System Low Limit Bank 2. P2098
P2099 Refer to DTC P2099: Post Catalyst Fuel Trim System High Limit Bank 2. P2099
MONITOR STRATEGY DESCRIPTION
To fulfill the legal requirements of the OBDII lambda sensor diagnosis, the trim of the lambda control by the lambda sensor signal downstream of the catalytic converter must be monitored in addition to the diagnosis of the lambda sensor upstream of the catalytic converter (by determining the switching times and the control frequency). Faulty behavior of the lambda sensors upstream or downstream the catalytic converter exists if sensor limits are reached and in this way one of the emission values in the FTP test is exceeded by 1.5 fold.
MALFUNCTION CRITERIA AND THRESHOLD VALUE(S)
Lean:
The I-share of the adaptation value > 300 ms
For the first time => Increment time counter until counter > 1 s
Then an error is detected.
Or
A lambda set-point shifting is or was active and Minimum mass air flow integral outside of PUC reached.
=> Error detected
Rich:
The I-share of the adaptation value < -300 ms
For the first time
=> Increment time counter until counter > 1 s
Then an error is detected.
Or
A lambda set-point shifting is or was active and Minimum mass air flow integral in PUC reached.
=> Error detected
SECONDARY PARAMETERS AND ENABLE CONDITIONS
Lean:
Enable Conditions:
No Throttle position sensor error
And no Throttle position sensor plausibility error
and no Catalyst or diagnosis error
and no Injection Valve error
and no Ignition Coil error
and no Canister purge solenoid error
and no Functional check Canister purge solenoid
and no Coolant temperature sensor error
and no Mass air flow sensor error
and no Manifold pressure sensor error
and no Crankshaft sensor error
and no Camshaft sensor error
and no Fuel system diagnosis error
and no Fuel system diagnosis error
and no O2 sensor up output stage OBDI error
and no O2 sensor down error
and no misfire error
and Battery Voltage conditions fulfilled
and no EGR error active RAMP_OPEN operation = false (Activation flag of dynamic fuel trim = true or lambda set-point shifting is or was active = active)
Time counter (to reset the Total duration over Maximum limit of LAM-P-jump delay time from I-share and
Total duration over Minimum limit of LAM-P-jump delay time from I-share) < 3 s
Rich:
Enable Conditions:
No Throttle position sensor error
And no Throttle position sensor plausibility error
and no Catalyst or diagnosis error
and no Injection Valve error
and no Ignition Coil error
and no Canister purge solenoid error
and no Functional check Canister purge solenoid
and no Coolant temperature sensor error
and no Mass air flow sensor error
and no Manifold pressure sensor error
and no Crankshaft sensor error
and no Camshaft sensor error
and no Fuel system diagnosis error
and no Fuel system diagnosis error
and no O2 sensor up output stage OBDI error
and no O2 sensor down error
and no misfire error
and Battery Voltage conditions fulfilled
and no EGR error
active RAMP_OPEN operation = false (Activation flag of dynamic fuel trim = true or lambda set-point shifting is or was active = active)
Time counter (to reset the Total duration over Maximum limit of LAM-P-jump delay time from I-share and
Total duration over Minimum limit of LAM-P-jump delay time from I-share) < 3 s
TIME LENGTH AND FREQUENCY
Recurrence rate: 100 ms
Mode $06 data:
MODE $06 Data