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Engine Controls - Tests W/codes Buick LeSabre VII

Step-by-step instructions on "Engine Controls - Tests W/codes" for Buick LeSabre VII (1992–1999). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

INTRODUCTION

SELF-DIAGNOSTIC SYSTEM

HARD FAILURES

INTERMITTENT FAILURES

DIAGNOSTIC PROCEDURE

READING TROUBLE CODES

TROUBLE CODE DEFINITION

HARD OR INTERMITTENT TROUBLE CODE DETERMINATION

CLEARING TROUBLE CODES

PCM LOCATION

Diagnostic Aids

Field Service Mode Check (If Available)

SPECIAL TOOLS (DIAGNOSTIC)

SCAN TESTER USAGE

SCAN DATA

ECM/PCM CODE CHARTS

Circuit Description

Set Condition

Test Description

Action Taken

Preliminary Inspection

Monitor Condition

Set Condition P0501

Set Condition P0502

Intermittent Test

DTC P1623: PROM ERROR

Set Condition Code P1626

Set Condition Code P1629

SUMMARY