Circuit/System Testing
WARNING: This page is about a different variant/trim than selected.
- Verify a condition does not exist with the component :
- Induction System - Leaking/Loose Clamps/Restricted/Visible Damage
- Q67 Exhaust Aftertreatment Fuel Injector - Leaking/Restricted - Refer to : Exhaust Aftertreatment Fuel Injector Diagnosis
- Verify the following conditions do not exist :
- Coolant consumption - Refer to : Loss of Coolant
- Fuel - Contaminated/Poor Quality - Refer to : Contaminants-in-Fuel Diagnosis , & Fuel System Specifications
- Oil consumption - Refer to : Oil Consumption Diagnosis
- If a condition exists
Repair or replace as necessary
- Go to next step : If no condition exists
- Verify a condition does not exist with the component : Exhaust System & Oxidation Catalytic Converter
- Cracked
- Internal component rattle
- Leaking - Refer to : Exhaust Leakage
- Loose Clamps
- Missing components
- Restrictions - Refer to : Restricted Exhaust
- Severe discoloration caused by excessive temperatures
- Visible Damage
- If a condition exists
Repair or replace as necessary
- Go to next step : If no condition exists
- Retrieve the value from the time the DTC was set by using the Freeze Frame/Failure Records.
- Temperature sensor 1 must be at least 100°C (212°F) cooler than temperature sensor 2.
- If within 100°C (212°F) of each other
Replace the component : Catalytic Converter
- Go to next step : If not within 100°C (212°F) of each other
- If within 100°C (212°F) of each other
- Operate the vehicle within the Conditions for Running the DTC. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
Verify the DTC does not set.
- If the DTC sets
Refer to step 1
- Go to next step : If no DTC is set
- If the DTC sets
- All OK.