Home/Oldsmobile/Cutlass Supreme/Oldsmobile Cutlass Supreme I (1988-1997)/Repair manual/Engine Controls - Tests W/codes - 3.4l Pfi/TPS

Contents

Section: Engine Controls - Tests W/codes - 3.4l Pfi

INTRODUCTION

MODEL IDENTIFICATION

SELF-DIAGNOSTIC SYSTEM

HARD FAILURES

INTERMITTENT FAILURES

DIAGNOSTIC PROCEDURE

RETRIEVING CODES (NON-SCAN)

READING TROUBLE CODES

TROUBLE CODE DEFINITION

HARD OR INTERMITTENT TROUBLE CODE DETERMINATION

CLEARING TROUBLE CODES

ECM/PCM LOCATION

Diagnostic Aids

Field Service Mode Check

SPECIAL TOOLS (DIAGNOSTIC)

SCAN TESTER USAGE

SCAN DATA

PCM/BCM CODE CHARTS

CODE 13, OPEN OXYGEN (O2) SENSOR CIRCUIT

CODE 14, COOLANT TEMPERATURE SENSOR, SIGNAL VOLTAGE LOW

CODE 15, COOLANT TEMPERATURE SENSOR, SIGNAL VOLTAGE HIGH

CODE 21, THROTTLE POSITION SENSOR, SIGNAL VOLTAGE HIGH

CODE 22, THROTTLE POSITION SENSOR, SIGNAL VOLTAGE LOW

CODE 23, MAT SENSOR SIGNAL VOLTAGE HIGH

CODE 24, VEHICLE SPEED SENSOR (VSS)

CODE 25, MAT SENSOR SIGNAL VOLTAGE LOW

CODE 32, EGR SYSTEM ERROR

CODE 33, MAP SENSOR, SIGNAL VOLTAGE HIGH

CODE 34, MAP SENSOR, SIGNAL VOLTAGE LOW

CODE 35, IAC IDLE SPEED ERROR, W/O TECH 1

System Too Lean

System Too Rich

Throttle Body

IAC Valve Connections

PCV Valve

CODE 35, IAC IDLE SPEED ERROR, USING TECH I

CODE 42, EST CKT OPEN OR GROUNDED

CODE 43, ESC ERROR, W/O ESC MODULE

CODE 44, LEAN EXHAUST INDICATION

O2 Sensor Wire

Fuel Contamination

Fuel Pressure

Exhaust Leaks

Misfire Or Stall

CODE 45, RICH EXHAUST INDICATION

Fuel Pressure High

Ignition Ground

Evaporative Fuel Canister

MAP Sensor

TPS

O2 Sensor Contamination

EGR Problem

CODE 51, FAULTY PROM/MEM-CAL

CODE 52, FAULTY CAL-PAK

CODE 53, SYSTEM OVERVOLTAGE

CODE 54, FUEL PUMP VOLTAGE LOW

CODE 55, ECM ERROR

CODE 61, DEGRADED OXYGEN (O2) SENSOR

CODE 66, A/C PRESSURE SENSOR

SUMMARY

All sections

TPS Oldsmobile Cutlass Supreme I

Engine Controls - Tests W/codes - 3.4l Pfi

TPS

An intermittent TPS output will cause system to operate rich due to a false indication of engine acceleration.