Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2003 Volvo S80 T-6FACTORY OEM SERVICE PROCEDURE
Ignition, Fuel And Control Systems - Specifications, Other
- Vehicle Communication, Quick Test Fuel Tank System (B5254T2; B6294S2; B6294T; 2005-2006)
- Specifications (B6284T; 1999-2001)
- Specifications (B6294S; 2000-2001)
- Specifications (B6304S3; 1999)
- Vehicle Communication Information (B5254T2; 2004)
- Description of parameters, quick test of the fuel tank system
- Description of component / functions activation
- Description of parameters
- Notes
- Engine speed
- Idle speed, difference desired value
- Engine coolant temperature (ECT)
- Intake air temperature (IAT) inlet
- Ambient temperature °C
- Atmospheric pressure
- Boost pressure
- Ignition advance
- Air mass
- Mass air flow, correction value
- Battery voltage
- Power supply, 5 V
- Accelerator pedal (AP) position sensor, analogue
- Accelerator pedal (AP) position sensor, pulse width modulation (PWM) average voltage
- Accelerator pedal (AP) position sensor, pulse width modulation (PWM)
- Throttle angle
- Throttle angle, desired value
- Throttle position (TP) sensor, potentiometer 1
- Throttle position (TP) sensor, potentiometer 2
- Throttle unit adaptation
- Leakage flow over throttle
- Clutch pedal position
- Clutch position sensor
- Brake pedal position (via the brake control module (BCM))
- Brake lamp switch
- Air conditioning (A/C) pressure
- Air conditioning (A/C) compressor, active
- Turbocharger (TC) control valve
- Canister purge (CP) valve
- Canister purge (CP) valve, flow
- Reset valve camshaft, intake/exhaust
- Camshaft shift angle, intake/exhaust
- Camshaft shift angle leeway, intake/exhaust
- Adaptation camshaft, intake/exhaust
- Leak diagnostic unit pump
- Injection period, bank x
- Short-term fuel trim, bank x
- Long-term fuel trim bank x, idle speed
- Long-term fuel trim bank x, lower part load
- Long-term fuel trim bank x, upper part load
- Long-term fuel trim, bank x
- Front heated oxygen sensor (HO2S), bank x
- Rear heated oxygen sensor (HO2S), bank x
- Fuel pump (FP) relay
- Vehicle speed
- Engine cooling fan (FC)
- Cruise control resume
- Cruise control set+
- Cruise control set-
- Boost pressure (actual value)
- Boost pressure (desired value)
- Vehicle Communication Information (B6284T; 1999-2001)
- Description of component / function activation
- Description of parameters
- Explanation
- Engine speed
- Engine coolant temperature (ECT)
- Intake air temperature (IAT) inlet
- Ambient temperature °C
- Atmospheric pressure
- Boost pressure
- Ignition advance
- Air mass
- Mass air flow, correction value
- Battery voltage
- Power supply, 5 V
- Accelerator pedal (AP), analogue
- Accelerator pedal (AP), pulse width modulation (PWM)
- Accelerator pedal (AP), pulse width modulation (PWM) (via the electronic throttle module)
- Throttle angle
- Leakage flow over throttle
- Clutch pedal position
- Clutch position sensor
- Brake pedal, volts
- Brake lamp switch
- AC pressure
- Air conditioning (A/C) compressor, active
- Turbocharger (TC) control valve
- Canister purge (CP) valve
- Camshaft reset valve
- The camshaft shift angle
- Camshaft shift angle, desired value
- Camshaft adaptation, flank x
- Fuel tank pressure
- EVAP canister shut-off valve
- Injection period, bank x
- Short-term fuel trim, bank x
- Long-term fuel trim bank x, idle speed
- Long-term fuel trim bank x, lower part load
- Long-term fuel trim bank x, upper part load
- Long-term fuel trim, bank x
- Front heated oxygen sensor, bank x
- Rear heated oxygen sensor (HO2S), bank x
- Fuel pump (FP) relay
- Vehicle speed
- Engine cooling fan (FC) stage 1
- Engine cooling fan (FC) stage 2
- Engine cooling fan (FC) stage 3
- Cruise control resume
- Cruise control set+
- Cruise control set-
- Boost pressure (actual value)
- Boost pressure (desired value)
- Vehicle Communication Information (B6294S; 2000-2001)
- Vehicle Communication Information (B6294S2; B6294T; 2002-2004)
- Vehicle Communication Information (B6294S2; B6294T; 2002-2003)
- Description of component / functions activation
- Description of parameters
- Notes
- Engine speed
- Idle speed, difference desired value
- Engine coolant temperature (ECT)
- Intake air temperature (IAT) inlet
- Ambient temperature °C
- Atmospheric pressure
- Boost pressure
- Ignition advance
- Air mass
- Mass air flow, correction value
- Battery voltage
- Power supply, 5 V
- Accelerator pedal (AP) position sensor, analogue
- Accelerator pedal (AP) position sensor, pulse width modulation (PWM) average voltage
- Accelerator pedal (AP) position sensor, pulse width modulation (PWM)
- Throttle angle
- Throttle angle, desired value
- Throttle position (TP) sensor, potentiometer 1
- Throttle position (TP) sensor, potentiometer 2
- Throttle unit adaptation
- Leakage flow over throttle
- Clutch pedal position
- Clutch position sensor
- Brake pedal position (via the brake control module (BCM))
- Brake lamp switch
- Air conditioning (A/C) pressure
- Air conditioning (A/C) compressor, active
- Turbocharger (TC) control valve
- Canister purge (CP) valve
- Canister purge (CP) valve, flow
- Reset valve camshaft, (intake / exhaust)
- Camshaft shift angle, (intake/ exhaust)
- Camshaft shift angle, (intake/ exhaust), desired value
- Intake camshaft adaptation (6 cylinder engines)
- Exhaust camshaft adaptation (6 cylinder engines)
- Exhaust camshaft adaptation (5 cylinder engines)
- Leak diagnostic unit pump
- Injection period, bank x
- Short-term fuel trim, bank x
- Long-term fuel trim bank x idle speed
- Long-term fuel trim bank x lower part load
- Long-term fuel trim bank x, upper part load
- Long-term fuel trim, bank x
- Front heated oxygen sensor (HO2S), bank x
- Rear heated oxygen sensor (HO2S), bank x
- Fuel pump (FP) relay
- Vehicle speed
- Engine cooling fan (FC) stage 1
- Engine cooling fan (FC) stage 2
- Engine cooling fan (FC) stage 3
- Cruise control resume
- Cruise control set+
- Cruise control set-
- Boost pressure (actual value)
- Boost pressure (desired value)
- Vehicle Communication Information (B6294S2; B6294T; 2004)
- Description of component / functions activation
- Description of parameters
- Notes
- Engine speed
- Idle speed, difference desired value
- Engine coolant temperature (ECT)
- Intake air temperature (IAT) inlet
- Ambient temperature °C
- Atmospheric pressure
- Boost pressure
- Ignition advance
- Air mass
- Mass air flow, correction value
- Battery voltage
- Power supply, 5 V
- Accelerator pedal (AP) position sensor, analogue
- Accelerator pedal (AP) position sensor, pulse width modulation (PWM) average voltage
- Accelerator pedal (AP) position sensor, pulse width modulation (PWM)
- Throttle angle
- Throttle angle, desired value
- Throttle position (TP) sensor, potentiometer 1
- Throttle position (TP) sensor, potentiometer 2
- Throttle unit adaptation
- Leakage flow over throttle
- Clutch pedal position
- Clutch position sensor
- Brake pedal position (via the Brake Control Module (BCM))
- Brake lamp switch
- AC pressure
- Air conditioning (A/C) compressor, active
- Turbocharger (TC) control valve
- Canister purge (CP) valve
- Canister purge (CP) valve, flow
- Reset valve camshaft, (intake / exhaust)
- Camshaft shift angle, (intake/ exhaust)
- Camshaft shift angle, (intake/ exhaust), desired value
- Intake camshaft adaptation (6 cylinder engines)
- Exhaust camshaft adaptation (6 cylinder engines)
- Exhaust camshaft adaptation (5 cylinder engines)
- Leak diagnostic unit pump
- Injection period, bank x
- Short-term fuel trim, bank x
- Long-term fuel trim bank x idle speed
- Long-term fuel trim bank x lower part load
- Long-term fuel trim bank x, upper part load
- Long-term fuel trim, bank x
- Front heated oxygen sensor (HO2S), bank x
- Rear heated oxygen sensor (HO2S), bank x
- Fuel pump (FP) relay
- Vehicle speed
- Engine cooling fan (FC)
- Cruise control resume
- Cruise control set+
- Cruise control set-
- Boost pressure (actual value)
- Boost pressure (desired value)
- Vehicle Communication Information (B6304S3; 1999)
- Vehicle Communication Information, Engine Control Module (ECM) (B5254T2; B6294S2; B6294T; 2005-2006)
- Description of activation
- Description of detailed diagnostic trouble code information readout
- Content
- Description of frozen values
- Explanation
- Engine speed (RPM)
- Boost pressure (hPa)
- Engine temperature (°C)
- Engine temperature, start (°C)
- Calculated load (%)
- Fuel pressure (Pa)
- Speed (km/h)
- Ignition angle (°BTDC)
- Atmospheric pressure (Pa)
- Outside temperature (°C)
- Intake air temperature (°C)
- EVAP valve (%)
- Throttle angle (%)
- Accelerator pedal position sensor, PWM (%)
- Accelerator pedal position sensor, analog (%)
- Throttle angle, desired value (%)
- Fuel trim, rapid adjustment, bank X (%)
- Fuel trim, slow adjustment, bank X (%)
- Power supply, engine control module (ECM) (V)
- Time after engine start (s)
- Description of parameters
- Notes
- Parameters, value
- Engine speed (RPM)
- Idling speed, difference desired value (RPM)
- Battery voltage (V)
- Engine coolant temperature (ECT) (°C)
- Intake air temperature (IAT) (°C)
- Outside temperature (°C)
- Atmospheric pressure (Pa)
- Ignition advance (°BTDC)
- Boost pressure (hPa)
- Turbocharger (TC) control valve (%)
- Mass air flow (kg/h)
- Mass air flow, correction value
- Accelerator pedal (AP) position sensor, analog (V)
- Throttle angle (%)
- Accelerator pedal (AP) position sensor, pulse width modulation (PWM) (%)
- Throttle angle, desired value (%)
- Throttle position (TP) sensor, potentiometer 1 (V)
- Throttle position (TP) sensor, potentiometer 2 (V)
- Leakage flow over the throttle (kg/h)
- Air conditioning (A/C) pressure (kPa)
- Evaporative emission system (EVAP) valve (%)
- EVAP, flow (kg/h)
- Injection period bank x (ms)
- Short-term fuel trim, bank x
- Long-term fuel trim bank x, idle speed (%)
- Long-term fuel trim bank x, lower part load
- Long-term fuel trim bank x, upper part load
- Front heated oxygen sensor (HO2S), bank x (λ)
- Rear heated oxygen sensor (HO2S), bank x (V)
- Fuel pressure (Pa)
- Fuel pressure, desired value (Pa)
- Fuel temperature (°C)
- Fuel pump (FP), workload (%)
- Oil level (%)
- Brake pedal position (via the brake control module (BCM))
- Speed (km/h)
- Engine cooling fan (FC) (%)
- Reset valve camshaft, intake / exhaust (CA)
- Camshaft shift angle, (intake/ exhaust) (°)
- Desired value for the camshaft shift angle, intake/exhaust
- Camshaft shift angle leeway, intake/exhaust
- Camshaft adaptation, intake/exhaust (CA)
- Misfire counter
- Misfire counter, cyl x
- Parameter, status
- Coolant level sensor
- Throttle unit adaptation
- Automatic transmission
- Cruise control resume
- Cruise control set+
- Cruise control set-
- Stop lamp switch
- Air conditioning (A/C) compressor, active
- Oil pressure sensor
- Long-term fuel trim, bank x
- Fuel pump (FP) relay
- Boost pressure (actual value)
- Boost pressure (desired value)
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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