Seville STS V8-4.6L VIN 9 (1998)
Resetting TP sensor learn will trigger DTC P152. Resetting transaxle oil life will trigger the Change Trans Fluid message. Resetting engine oil life will
trigger the Change Engine Oil Now message. The TP sensor learn can be relearned by following the DTC P1526 table. The transaxle oil life may be
reset to its previous value using PCM transaxle oil life override. The engine oil life may be reset to 100 by displaying the Oil life left and pressing the
Reset button. The transaxle adapts will be relearned during normal operation. The PCMs learned odometer reading must be reset with a scan tool on
vehicles without a smart (serial data equipped) Instrument Panel (IP). Smart IPs communicate their odometer value to the PCM.
Powertrain System Diagnosis
After the visual inspection is complete, the Powertrain OBD System Check should be performed. See: Powertrain Management/Computers and
Control Systems/Testing and Inspection This Powertrain System Check will provide direction for diagnosis of the following:
^
PCM inoperative or damaged, no PCM data or SERVICE ENGINE SOON Malfunction Indicator Lamp (MIL) inoperative.
^
PCM Diagnostic Trouble Codes (DTCs).
^
Fuel System Rich or Lean.
^
Customer Complaint Driveability Symptoms. The Powertrain OBD System Check is designed as a Master table for driveability and emissions
system diagnosis. The System Check should always be used as the starting point for all Powertrain diagnosis.
System Check
The Powertrain OBD System Check is an organized approach for identifying a problem. Driver Comments normally fall into one of the following
areas:
^
Steady SERVICE ENGINE SOON MIL.
^
Driveability problem
^
Engine will not start or stalls after start. Understanding the table and using it correctly will reduce diagnosis time and prevent the unnecessary
replacement of parts.
