For 1990-2009 cars

### Diagnostic Instructions

• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

• | Review Strategy Based Diagnosis for an overview of the diagnostic approach.

• | Diagnostic Procedure Instructions provides an overview of each diagnostic category.

System | DTCs Required to Set System Status to YES
--- | ---
If an I/M all System Status indicator did NOT update to YES during the review each indicator and reference this table to determine each DTC associated with the I/M System Status Indicator. Each DTC listed below has specific conditions that must be met for the diagnostic to run. Included within the conditions are additional DTCs which, if set, may inhibit the DTCs listed below from running. Reviewing and operating the vehicle within the Conditions for Running each DTC listed below will allow the I/M System Status Indicators to transit to YES.
Catalyst | DTC P0420 or P0430
EVAP | DTC P0443
Oxygen Sensor | DTC P0030, P0036, P0053, P0054, P0135, or P0141 DTC P0050, P0056, P0059, P0060, P0155, or P0161 DTC P0131, P0132, P0137, or P0138 DTC P0133, P0134, P0140, P1133, or P2A00 DTC P0151, P0152, P0157, or P0158

DTC P0153,P0154, P0160, P1153, or P2A03