Diagnostic Test
WARNING: This page is about a different car, the 2014 RAM 1500. However, it is still accessible from the selected car via links, so may be relevant.
- OTHER DTCS PRESENT
- Turn the ignition on.
- With the scan tool, read DTCs.
Are either of the Exhaust Temperature Catalyst Sensor Low or High DTCs present?
Yes
- Repair the other DTCs before proceeding.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
No
- Go To 2
- EXHAUST TEMPERATURE CATALYST SENSOR
- Remove the Exhaust Temperature Catalyst Sensor and reconnect the harness connector to the sensor. Monitor the scan tool, while heating the sensor with an external heat source (DO NOT USE OPEN FLAME).
Does the reading from the sensor increase at least 5°F on the scan tool?
Yes
- Perform the INTERMITTENT CONDITION diagnostic procedure. Refer to INTERMITTENT DTC .
No
- Replace the Exhaust Temperature Catalyst Sensor in accordance with the service information.
- Perform the POWERTRAIN VERIFICATION TEST. Refer to PCM VERIFICATION TEST .
- Remove the Exhaust Temperature Catalyst Sensor and reconnect the harness connector to the sensor. Monitor the scan tool, while heating the sensor with an external heat source (DO NOT USE OPEN FLAME).