OBDII Monitor Operation
WARNING: This page is about a different car, the 2007 Dodge Sprinter. However, it is still accessible from the selected car via links, so may be relevant.
| Comprehensive Components Monitor | Major Monitors Non Fuel Control & Non Misfire | Major Monitors Fuel Control & misfire |
|---|---|---|
| (Includes All Engine Hardware Sensor, Switches, Solenoids, etc.) | (Monitors Entire Emission System) | (Monitors Entire System) |
| Most are one trip Faults | Most are Two Trips Faults | Two Trip Faults |
| Usually Turns on The MIL and Sets DTC After One Failure | Turns On The MIL and Sets DTC after Two Consecutive Failure | Turns On the MIL and Sets DTC After Two Consecutive Failure |
| Priority 3 | Priority 1 or 3 | Priority 2 or 4 |
| All Checked For Continuity | Done Stop Test = Yes | Fuel Control Monitor |
| Open | Oxygen Sensor Heater | Monitors Fuel Control |
| Short To Ground | Oxygen Sensor Response | System For: |
| Short To Voltage | Catalytic Converter | Fuel System Lean |
| Inputs Checked For Rationality | Efficiency Except EWMA | Fuel System Rich |
| Outputs Checked For Functionality | Up to 6 test per trip and a one trip fault (SBEC) and two trip fault on (JTEC) | Requires 3 Consecutive Fuel System Good Trips to Extinguish the MIL |
| - | Misfire Monitor | |
| - | Monitors for Engine Misfire At: | |
| - | 4 X 1000 RPM Counter (4000 Revs) (Type B) | |
| - | **200 X 3 (600) RPM counter (Type A) | |
| Requires 3 Consecutive Global Good Trips to Extinguish the MIL* | Requires 3 Consecutive Global Good Trips to Extinguish the MIL | Requires 3 Consecutive Global Good Trips to Extinguish the MIL |
| *40 Warm Up Cycles are required to erase DTCs after the MIL has been extinguished | - | ** Type A misfire is a one trip failure on pre-1999, 2 trip failure on 1999 and later. The MIL will illuminate at the first or second failure, based on MY. |