Manual sections

Wiring diagrams

• Abbreviations
• Accessory Drive Belts
• Aerodynamic Devices
• Airbag
• Antenna Systems
• Anti-Lock/traction Control
• Application
• Automatic HVAC System
• Automatic Trans
• Axle Shafts
• Basic Trouble Shooting
• Body Electrical
• Body, Cab Control Systems
• Brakes
• Cabin Air Filter
• Check Lists
• Clutches Manual & Hydraulic
• Collision/avoidance
• Communication Devices
• Computer Relearn
• Convertible Top, Hardtop
• Cooling Fan
• Cooling System (Mechanical)
• Cruise Control Systems
• Diagnostic Connector Locations
• Dme 5.2.2 Diagnosis
• Dme 5.2.2 Diagnosis: Diagnosis
• Door Locks & Anti-Theft Systems
• Driveline/axles
• Electrical Component Locations
• Emission Applications
• Engine
• Engine
• Engine Performance
• Engine: Specifications
• Entertainment Systems
• Exhaust
• Exterior Body Panels
• Exterior Lights
• Fuel System
• Fuses & Circuit Breakers
• Gauges & Instrument Panels
• Heated Glass/defoggers
• Identification
• Ignition System
• Maintenance
• Manual Trans
• Mechanical - Hydraulic
• Metric Conversions
• Mirrors
• Mode 6
• Oem General Information
• Procedures
• Radio
• Restraints
• Seats
• Specifications
• Steering
• Steering Column Switches
• Sun Roof/t-Top/convertible Top
• System
• Traction Control Disable
• Transmission
• Wheel & Tire System
• Wiper/washer Systems

Repair manual

Dme 5.2.2 Diagnosis Porsche Boxster 986

Step-by-step instructions on "Dme 5.2.2 Diagnosis" for Porsche Boxster 986 (1996–2002). Pick an article — removal, installation, adjustment and diagnostics with illustrations.

210subsections

210articles

121illustrations

Structure

1 article

• Structure 1

General

1 article

• General

Operating conditions "Freeze frame"

1 article

• Operating conditions "Freeze frame"

ECM signal output

1 article

• ECM signal output

Warm up cycle

1 article

• Warm up cycle

Driving cycle

1 article

• Driving cycle

Trip

1 article

• Trip

Readiness code

1 article

• Readiness code

Freeze Frame

1 article

• Freeze Frame

Fault shedding

1 article

• Fault shedding

Fault healing

1 article

• Fault healing

Fault erasing counter

1 article

• Fault erasing counter

Use

1 article

• Use

Malfunctions

1 article

• Malfunctions 2

Voltage supply

1 article

• Voltage supply

Adjusting illumination of LCD panel

1 article

• Adjusting illumination of LCD panel

Working log

1 article

• Working log

Automatic switch-off

1 article

• Automatic switch-off

Software update

1 article

• Software update

Main menu

1 article

• Main menu

Fault memory

1 article

• Fault memory

Erase fault memory

1 article

• Erase fault memory

Actual values

1 article

• Actual values

Drive links

1 article

• Drive links

Input signals

1 article

• Input signals

Drive link active

1 article

• Drive link active

Vehicle data

1 article

• Vehicle data

Control module programming

1 article

• Control module programming

Mode 1

1 article

• Mode 1

Mode 2

1 article

• Mode 2

Mode 4

1 article

• Mode 4

Mode 5

1 article

• Mode 5 1

$00 Supported PID's

1 article

• $00 Supported PID's

Data A

1 article

• Data A 1

Data B

1 article

• Data B 1

Data C

1 article

• Data C 1

Data D

1 article

• Data D 1

$OF Intake air temperature

1 article

• $OF Intake air temperature 14

Mode 3

1 article

• Mode 3 12

Tools

1 article

• Tools 8

Fault types

1 article

• Fault types

MIL (Check Engine Malfunction Indicator Light)

1 article

• MIL (Check Engine Malfunction Indicator Light) 7

Mass Air Flow Sensor Signal implausible

1 article

• Mass Air Flow Sensor Signal implausible

Mass Air Flow Sensor, below lower limit

1 article

• Mass Air Flow Sensor, below lower limit

Function

1 article

• Function

Intake Air Temperature Circuit - Low Input

1 article

• Intake Air Temperature Circuit - Low Input

Intake Air Temperature Sensor, below lower limit

1 article

• Intake Air Temperature Sensor, below lower limit

Check Intake Air Temperature Sensor in mass air flow sensor

1 article

• Check Intake Air Temperature Sensor in mass air flow sensor

ECT Sensor signal implausible

1 article

• ECT Sensor signal implausible

ECT Engine Coolant Temperature - Malfunction

1 article

• ECT Engine Coolant Temperature - Malfunction

Resistance values

1 article

• Resistance values 3

Check Intake Air Temperature Sensor

1 article

• Check Intake Air Temperature Sensor

Check Output Voltage of ECM

1 article

• Check Output Voltage of ECM

117 Throttle Position Sensor - Below Limit

1 article

• 117 Throttle Position Sensor - Below Limit

Check voltage supply to TP sensor

1 article

• Check voltage supply to TP sensor

Check TP sensor

1 article

• Check TP sensor

Check oxygen sensor

1 article

• Check oxygen sensor

Check ECM final stage

1 article

• Check ECM final stage

Aging of Oxygen Sensor Ahead of Three Way Catalytic Converter (TWC) (cylinders 1 - 3)

1 article

• Aging of Oxygen Sensor Ahead of Three Way Catalytic Converter (TWC) (cylinders 1 - 3)

Aging of Oxygen Sensor Ahead of Three Way Catalytic Converter (cylinders 1 - 3) - Below Lower Limit

1 article

• Aging of Oxygen Sensor Ahead of Three Way Catalytic Converter (cylinders 1 - 3) - Below Lower Limit

Aging of Oxygen Sensor Ahead of Three Way Catalytic Converter (TWC) (cylinders 4 - 6)

1 article

• Aging of Oxygen Sensor Ahead of Three Way Catalytic Converter (TWC) (cylinders 4 - 6)

Manual transmission

1 article

• Manual transmission

Tiptronic

1 article

• Tiptronic 3

Check function of oxygen sensor

1 article

• Check function of oxygen sensor

Check oxygen sensor heating

1 article

• Check oxygen sensor heating

Aging of Oxygen Sensor After Three Way Catalytic Converter (TWC) (cylinders 1 - 3)

1 article

• Aging of Oxygen Sensor After Three Way Catalytic Converter (TWC) (cylinders 1 - 3)

Camshaft Position (CMP) Sensor 1 Signal Implausible, Short Circuit to Ground, Short Circuit to Plus

1 article

• Camshaft Position (CMP) Sensor 1 Signal Implausible, Short Circuit to Ground, Short Circuit to Plus

Check power supply to CMP Sensor

1 article

• Check power supply to CMP Sensor

Check CMP Sensor signal

1 article

• Check CMP Sensor signal

Check signal wire from ECM to CMP Sensors

1 article

• Check signal wire from ECM to CMP Sensors

Check signal wire from ECM to CMP Sensors for short circuit to ground

1 article

• Check signal wire from ECM to CMP Sensors for short circuit to ground

Check signal wire from ECM to CMP Sensors for short circuit to B+

1 article

• Check signal wire from ECM to CMP Sensors for short circuit to B+

Oil Temperature Sensor - Short Circuit to Ground

1 article

• Oil Temperature Sensor - Short Circuit to Ground

Check temperature sensor

1 article

• Check temperature sensor

Check wire from ECM to temperature sensor for short to ground

1 article

• Check wire from ECM to temperature sensor for short to ground

Check wire from ECM to temperature sensor for short to B+

1 article

• Check wire from ECM to temperature sensor for short to B+

Misfire Damaging to Catalytic Converter

1 article

• Misfire Damaging to Catalytic Converter

Misfire, Cylinder 1, Damaging to Catalytic Converter

1 article

• Misfire, Cylinder 1, Damaging to Catalytic Converter

Misfire, Cylinder 2, Damaging to Catalytic Converter

1 article

• Misfire, Cylinder 2, Damaging to Catalytic Converter

Misfire, Cylinder 3, Damaging to Catalytic Converter

1 article

• Misfire, Cylinder 3, Damaging to Catalytic Converter

Misfire, Cylinder 4, Damaging to Catalytic Converter

1 article

• Misfire, Cylinder 4, Damaging to Catalytic Converter

Misfire, Cylinder 5, Damaging to Catalytic Converter

1 article

• Misfire, Cylinder 5, Damaging to Catalytic Converter

Misfire, Cylinder 6, Damaging to Catalytic Converter

1 article

• Misfire, Cylinder 6, Damaging to Catalytic Converter

Misfire, Cylinder 1, Emission Related

1 article

• Misfire, Cylinder 1, Emission Related

Misfire, Cylinder 2, Emission Related

1 article

• Misfire, Cylinder 2, Emission Related

Misfire, Cylinder 3, Emission Related

1 article

• Misfire, Cylinder 3, Emission Related

Misfire, Cylinder 4, Emission Related

1 article

• Misfire, Cylinder 4, Emission Related

Misfire, Cylinder 5, Emission Related

1 article

• Misfire, Cylinder 5, Emission Related

Misfire, Cylinder 6, Emission Related

1 article

• Misfire, Cylinder 6, Emission Related

Misfire, Emission Related

1 article

• Misfire, Emission Related

Checking quantity delivered by fuel pump

1 article

• Checking quantity delivered by fuel pump 2

Check triggering of fuel injectors

1 article

• Check triggering of fuel injectors 3

Check signal with engine tester

1 article

• Check signal with engine tester 1

Secondary Air Injection System - Signal Implausible (Cylinders 1 - 3)

1 article

• Secondary Air Injection System - Signal Implausible (Cylinders 1 - 3)

In menu "Drive links", trigger secondary air injection (AIR) pump

1 article

• In menu "Drive links", trigger secondary air injection (AIR) pump

Check triggering of AIR pump

1 article

• Check triggering of AIR pump

Check electric change-over valve

1 article

• Check electric change-over valve

Check air change-over valve and air supply lines

1 article

• Check air change-over valve and air supply lines

TWC Conversion Too Low (cylinders 1 - 3)

1 article

• TWC Conversion Too Low (cylinders 1 - 3)

Check triggering of the EVAP canister purge valve

1 article

• Check triggering of the EVAP canister purge valve

Check voltage supply and leads

1 article

• Check voltage supply and leads

Check EVAP canister purge valve

1 article

• Check EVAP canister purge valve

Check hose between EVAP canister purge valve and intake system

1 article

• Check hose between EVAP canister purge valve and intake system 3

Check EVAP canister purge valve for leaks

1 article

• Check EVAP canister purge valve for leaks 5

Check ventilation lines for leaks

1 article

• Check ventilation lines for leaks 3

EVAP Canister Purge Valve - Open Circuit

1 article

• EVAP Canister Purge Valve - Open Circuit

Check voltage supply for EVAP canister purge valve

1 article

• Check voltage supply for EVAP canister purge valve

Check control line for EVAP canister purge valve

1 article

• Check control line for EVAP canister purge valve

Check control line for EVAP canister purge valve for short circuit to B+

1 article

• Check control line for EVAP canister purge valve for short circuit to B+

Check control line for EVAP canister purge valve for short circuit to ground

1 article

• Check control line for EVAP canister purge valve for short circuit to ground 3

Check purge air line for blockage

1 article

• Check purge air line for blockage

96 EVAP Canister Shutoff Valve (Output Stage) - Open Circuit

1 article

• 96 EVAP Canister Shutoff Valve (Output Stage) - Open Circuit 2

Check voltage supply for shutoff valve

1 article

• Check voltage supply for shutoff valve

Check shutoff valve

1 article

• Check shutoff valve

Check triggering wire for shutoff valve for continuity

1 article

• Check triggering wire for shutoff valve for continuity

Check triggering wire for shutoff valve for short circuit to B+

1 article

• Check triggering wire for shutoff valve for short circuit to B+

Check triggering wire for shutoff valve for short circuit to ground

1 article

• Check triggering wire for shutoff valve for short circuit to ground

99 Tank Pressure Sensor - Signal Implausible

1 article

• 99 Tank Pressure Sensor - Signal Implausible

99 Tank Pressure Sensor - Below Limit

1 article

• 99 Tank Pressure Sensor - Below Limit 5

Check tank cap

1 article

• Check tank cap

Check ventilation lines at EVAP canister

1 article

• Check ventilation lines at EVAP canister

Check ventilation lines at operating purge valve

1 article

• Check ventilation lines at operating purge valve

Check ventilation line at tank

1 article

• Check ventilation line at tank

Check ventilation line at EVAP canister purge valve

1 article

• Check ventilation line at EVAP canister purge valve 1

Check ventilation lines

1 article

• Check ventilation lines

Read ABS control module fault memory

1 article

• Read ABS control module fault memory

Check speed sensor with ohmmeter

1 article

• Check speed sensor with ohmmeter

Check speed signal with engine tester

1 article

• Check speed signal with engine tester

Idle Air Control - Engine speed too low

1 article

• Idle Air Control - Engine speed too low

Check IAC Valve

1 article

• Check IAC Valve 3

Check CAN bus from ECM to Tiptronic control module for continuity

1 article

• Check CAN bus from ECM to Tiptronic control module for continuity

Check CAN bus from ECM to Tiptronic control module for short to ground

1 article

• Check CAN bus from ECM to Tiptronic control module for short to ground

Check CAN bus from ECM to Tiptronic control module for short to B+

1 article

• Check CAN bus from ECM to Tiptronic control module for short to B+

Check CAN bus from ECM to Tiptronic control module for short circuit

1 article

• Check CAN bus from ECM to Tiptronic control module for short circuit

ECM faulty

1 article

• ECM faulty

Oxygen sensor heating 1 ahead of catalytic converter - above upper limit

1 article

• Oxygen sensor heating 1 ahead of catalytic converter - above upper limit

Check resistance of oxygen sensor heating

1 article

• Check resistance of oxygen sensor heating

Oxygen sensor heating 1 behind catalytic converter - above upper limit

1 article

• Oxygen sensor heating 1 behind catalytic converter - above upper limit

Oxygen sensor heating 1 ahead of catalytic converter - below lower threshold

1 article

• Oxygen sensor heating 1 ahead of catalytic converter - below lower threshold

Oxygen sensor heating 1 behind catalytic converter - below lower threshold

1 article

• Oxygen sensor heating 1 behind catalytic converter - below lower threshold

Check resistance of H02S heating

1 article

• Check resistance of H02S heating

Check ECM final stage to B+

1 article

• Check ECM final stage to B+

Oxygen Sensing Adaptation Range 1 (Cylinders 1 - 3) Enrichment Limit

1 article

• Oxygen Sensing Adaptation Range 1 (Cylinders 1 - 3) Enrichment Limit 2

Checking fuel pressure

1 article

• Checking fuel pressure

Checking volume supply of fuel pump

1 article

• Checking volume supply of fuel pump

Fuel injectors contaminated (carbonized)

1 article

• Fuel injectors contaminated (carbonized)

Oxygen Sensing Adaptation Range 1 (Cylinders 1 - 3) Lean Limit

1 article

• Oxygen Sensing Adaptation Range 1 (Cylinders 1 - 3) Lean Limit 4

Check fuel pressure regulator, vacuum connection and fuel return line

1 article

• Check fuel pressure regulator, vacuum connection and fuel return line

Oxygen Sensing Adaptation Range 2 (Cylinders 1 - 3) Lean Limit

1 article

• Oxygen Sensing Adaptation Range 2 (Cylinders 1 - 3) Lean Limit 4

Oxygen Sensing Adaptation Range 2 (cylinder 1 - 3) - Enrichment limit

1 article

• Oxygen Sensing Adaptation Range 2 (cylinder 1 - 3) - Enrichment limit 6

Fuel injectors contaminated, carbonized

1 article

• Fuel injectors contaminated, carbonized 4

Read specified values for Throttle Position Sensor

1 article

• Read specified values for Throttle Position Sensor

Engine Compartment Temperature Sensor - Short Circuit to Ground

1 article

• Engine Compartment Temperature Sensor - Short Circuit to Ground

Resistance value

1 article

• Resistance value 1

Check wire from ECM to temperature sensor for short circuit to ground

1 article

• Check wire from ECM to temperature sensor for short circuit to ground

Check wire from ECM to temperature sensor for short circuit to B+

1 article

• Check wire from ECM to temperature sensor for short circuit to B+

Injector Circuit Cylinder 1 - Short to B+

1 article

• Injector Circuit Cylinder 1 - Short to B+

Fuel injector, cylinder 1 - Short to Ground

1 article

• Fuel injector, cylinder 1 - Short to Ground

Check fuel injector

1 article

• Check fuel injector

Injector Circuit, Cylinder 2 - Short to B+

1 article

• Injector Circuit, Cylinder 2 - Short to B+

Fuel Injector, cylinder 2 - Short to Ground

1 article

• Fuel Injector, cylinder 2 - Short to Ground

Fuel Injector, cylinder 3 - Short to B+

1 article

• Fuel Injector, cylinder 3 - Short to B+

Fuel Injector, cylinder 3 - Short to Ground

1 article

• Fuel Injector, cylinder 3 - Short to Ground

Injector Circuit, Cylinder 4 - Short to B+

1 article

• Injector Circuit, Cylinder 4 - Short to B+

Fuel Injector, cylinder 4 - Short to Ground

1 article

• Fuel Injector, cylinder 4 - Short to Ground

Fuel Injector, cylinder 5 - Short to B+

1 article

• Fuel Injector, cylinder 5 - Short to B+

Fuel Injector, cylinder 5 - Short to Ground

1 article

• Fuel Injector, cylinder 5 - Short to Ground

Fuel Injector, cylinder 6 - Short to B+

1 article

• Fuel Injector, cylinder 6 - Short to B+

Fuel Injector, cylinder 6 - Short to Ground

1 article

• Fuel Injector, cylinder 6 - Short to Ground

Timing Chain out of Position, Bank 2 - Below Lower Limit

1 article

• Timing Chain out of Position, Bank 2 - Below Lower Limit

Timing Chain out of Position, Bank 2 - Above Upper Limit

1 article

• Timing Chain out of Position, Bank 2 - Above Upper Limit

Timing Chain out of Position, Bank 1 - Below Lower Limit

1 article

• Timing Chain out of Position, Bank 1 - Below Lower Limit 1

Knock Sensor 1 - Signal Implausible

1 article

• Knock Sensor 1 - Signal Implausible

Knock Sensor 2 - Signal Implausible

1 article

• Knock Sensor 2 - Signal Implausible

A/C compressor control - Interruption

1 article

• A/C compressor control - Interruption

A/C compressor control - upper limit exceeded

1 article

• A/C compressor control - upper limit exceeded

Check control wire for A/C relay, pin 2 for interruptions

1 article

• Check control wire for A/C relay, pin 2 for interruptions

Check control wire for A/C relay, pin 2 for short circuit to B+

1 article

• Check control wire for A/C relay, pin 2 for short circuit to B+

Check control wire for A/C relay, pin 2 (terminal 85) for short circuit to ground

1 article

• Check control wire for A/C relay, pin 2 (terminal 85) for short circuit to ground

End Stage Fuel Pump Relay - Short Circuit to Ground

1 article

• End Stage Fuel Pump Relay - Short Circuit to Ground

End Stage Fuel Pump Relay - Short Circuit to Plus

1 article

• End Stage Fuel Pump Relay - Short Circuit to Plus

P 1502

1 article

• P 1502 5

Check fuel pump relay

1 article

• Check fuel pump relay

Idle Control Valve Opening Coil - Open

1 article

• Idle Control Valve Opening Coil - Open

Check coil resistance of IAC Valve

1 article

• Check coil resistance of IAC Valve 4

Check triggering wire for short to ground

1 article

• Check triggering wire for short to ground

Check B+ supply of actuator

1 article

• Check B+ supply of actuator

Check triggering wire for continuity

1 article

• Check triggering wire for continuity 4

Idle Air Control (IAC) Valve - Interruption

1 article

• Idle Air Control (IAC) Valve - Interruption

Idle Air Control (IAC) Valve Closing Coil - Below Lower Limit

1 article

• Idle Air Control (IAC) Valve Closing Coil - Below Lower Limit

Check signal wire for continuity

1 article

• Check signal wire for continuity

Check signal wire for short circuit to ground

1 article

• Check signal wire for short circuit to ground

Check signal wire for short circuit to B+

1 article

• Check signal wire for short circuit to B+

Power Supply - Signal Implausible

1 article

• Power Supply - Signal Implausible

Power Supply - Below Lower Limit

1 article

• Power Supply - Below Lower Limit

Check wire, terminal 30, for contact resistances

1 article

• Check wire, terminal 30, for contact resistances

Engine Compartment Purge Fan End-Stage - Open Circuit

1 article

• Engine Compartment Purge Fan End-Stage - Open Circuit

Engine Compartment Purge Fan End-Stage - Short Circuit to Ground

1 article

• Engine Compartment Purge Fan End-Stage - Short Circuit to Ground

Check relay

1 article

• Check relay

Check wire from ECM to relay for continuity

1 article

• Check wire from ECM to relay for continuity

Check wire from ECM to relay for short circuit to ground

1 article

• Check wire from ECM to relay for short circuit to ground

Check wire from ECM to relay for short circuit to B+

1 article

• Check wire from ECM to relay for short circuit to B+

Fan End-Stage - Open Circuit

1 article

• Fan End-Stage - Open Circuit

Fan End-Stage - Short Circuit to Ground

1 article

• Fan End-Stage - Short Circuit to Ground

Check both relays

1 article

• Check both relays

Check wire from ECM to relays for continuity

1 article

• Check wire from ECM to relays for continuity

Check wire from ECM to relays for short circuit to ground

1 article

• Check wire from ECM to relays for short circuit to ground

Check wire from ECM to relays for short circuit to B+

1 article

• Check wire from ECM to relays for short circuit to B+

Malfunction Indication Light (MIL), Check engine - Interruption

1 article

• Malfunction Indication Light (MIL), Check engine - Interruption

MIL Check engine - Short Circuit to Ground

1 article

• MIL Check engine - Short Circuit to Ground