DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P005200
Condition
Scheme 287
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) registers that the front heated oxygen sensor (HO2S) preheating circuit (bank 2) has a short-circuit to supply voltage.
The engine cylinders are counted from the cylinder furthest away from the flywheel.
- Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7.
- Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6, and 8.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- Fuel trim switched off.
- Front heated oxygen sensor (HO2S) preheating switched off.
Possible Source
- Short-circuit to supply in the power cable.
- Damaged front heated oxygen sensor (HO2S).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
Scheme 288
Scheme 289
- The ignition must be on to perform the diagnostic. Check whether the fault is permanent or intermittent. Read off the diagnostic trouble code (DTC) fault status when the diagnostic status is "Completed". The fault is permanent if the fault status is "Fault found". The fault is intermittent if the fault status is "No fault found".
- Continue Refer to «CHECKING COMPONENTS»(ref-476778-S00869916132012060500000)
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P005700
Condition
Scheme 290
Engine Control Module (ECM) checks if the rear heated oxygen sensor's preheating circuit (bank 2) is short-circuited to voltage, there is an open circuit or if the resistance in the heating resistor is incorrect.
The engine cylinders are counted from the cylinder furthest away from the flywheel.
- Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7.
- Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6, and 8.
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers any of these.
The diagnostic trouble code (DTC) can be diagnosed at ignition on and if the battery voltage is in the range 11-16 V.
Substitute Value
- Rear heated oxygen sensor (HO2S) preheating shut off.
Possible Source
- Contact resistance, oxidation in the terminals.
- Short-circuit to ground in the power cable.
- Open-circuit in the power supply cable.
- Damaged rear heated oxygen sensor (HO2S).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P005700
Condition
Engine Control Module (ECM) checks if the rear heated oxygen sensor's preheating circuit (bank 2) is short-circuited to voltage, there is an open circuit or if the resistance in the heating resistor is incorrect.
The engine cylinders are counted from the cylinder furthest away from the flywheel.
- Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7.
- Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6, and 8.
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers any of these.
The diagnostic trouble code (DTC) can be diagnosed at ignition on and if the battery voltage is in the range 11-16 V.
Substitute Value
- Rear heated oxygen sensor (HO2S) preheating shut off.
Possible Source
- Contact resistance, oxidation in the terminals.
- Short-circuit to ground in the power cable.
- Open-circuit in the power supply cable.
- Damaged rear heated oxygen sensor (HO2S).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P005800
Condition
Engine Control Module (ECM) checks if the rear heated oxygen sensor's preheating circuit (bank 2) is short-circuited to voltage.
The engine cylinders are counted from the cylinder furthest away from the flywheel.
- Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7.
- Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6, and 8.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) registers that the rear heated oxygen sensor preheating circuit (bank 2) has a short-circuit to supply voltage.
The diagnostic trouble code (DTC) can be diagnosed at ignition on and if the battery voltage is in the range 11-16 V.
Substitute Value
- Rear heated oxygen sensor (HO2S) preheating shut off.
Possible Source
- Short-circuit to supply in the power cable.
- Damaged rear heated oxygen sensor (HO2S).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P005800
Condition
Engine Control Module (ECM) checks if the rear heated oxygen sensor's preheating circuit (bank 2) is short-circuited to voltage.
The engine cylinders are counted from the cylinder furthest away from the flywheel.
- Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7.
- Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6, and 8.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) registers that the rear heated oxygen sensor preheating circuit (bank 2) has a short-circuit to supply voltage.
The diagnostic trouble code (DTC) can be diagnosed at ignition on and if the battery voltage is in the range 11-16 V.
Substitute Value
- Rear heated oxygen sensor (HO2S) preheating shut off.
Possible Source
- Short-circuit to supply in the power cable.
- Damaged rear heated oxygen sensor (HO2S).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007000
Condition
Engine control module (ECM) measures the ambient temperature using an outside temperature sensor. The sensor is located in the left external rear-view mirror. The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 4.951 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Scheme 291
Substitute Value
- The control module uses a constant outside temperature, +20 °C.
Possible Source
- Open-circuit in signal cable or ground lead.
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Damaged outside temperature sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007000
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007100
Condition
Scheme 292
The engine control module (ECM) checks the signal from the outside temperature sensor in the left door mirror. The diagnostic trouble code is generated if the control module registers that the value from the outside temperature sensor deviates too much from the value of the intake temperature after the engine has cooled at least 8 hours since running at operating temperature.
The diagnostic trouble code can be diagnosed at ignition on after the engine temperature has dropped by at least 55 °C from fully warm engine (higher than 70 °C).
Substitute Value
- The value is set to the constant 20 °C.
Possible Source
- Contact resistance in connector.
- Damaged outside temperature sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
Scheme 293
Scheme 294
Scheme 295
- Ignition on. Check to, see if the fault is permanent or intermittent by reading off the external temperature sensor's signal. Check that the value is within its permitted range. The fault is permanent if the value is not within its permitted range. The fault is intermittent and not currently active if the value is within its permitted range.
- Continue Refer to «CHECKING THE COMPONENT AND WIRING»(ref-476778-S35897155962012060500000)
Scheme 296
- Ignition off.
- Check the external temperature sensor connector and terminals. Check for contact resistance. Check for oxidation.
- Ignition on. Read off the external temperature using the VCT2000 (or appropriate scan tool). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-476691-S30437390172012060500000) see «SIGNAL SPECIFICATION»(/volvo/xc90/i-2002-2006/remont/engine-control-systems/#engine-control-signal-description-and-specification) see «OUTSIDE TEMPERATURE SENSOR DOOR MIRROR, REPLACING»(/volvo/xc90/i-2002-2006/remont/mirrors/#outside-temperature-sensor-in-door-mirror-removal-and-installation__outside-temperature-sensor-door-mirror-replacing) see «CHECKING WIRING AND TERMINALS»(/volvo/xc90/i-2002-2006/remont/body-electrical/#wiring-and-terminals-general-diagnostics-and-tests)
- Continue Refer to «VERIFICATION»(ref-476778-S23064937092012060500000)
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007100
Condition
The engine control module (ECM) checks the signal from the outside temperature sensor in the left door mirror. The diagnostic trouble code is generated if the control module registers that the value from the outside temperature sensor deviates too much from the value of the intake temperature after the engine has cooled at least 8 hours since running at operating temperature.
The diagnostic trouble code can be diagnosed upon ignition after the engine has cooled at least 8 hours.
Substitute Value
- The value is set to the constant 20 °C.
Possible Source
- Contact resistance in connector.
- Damaged outside temperature sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007200
Condition
Engine control module (ECM) measures the ambient temperature using an outside temperature sensor. The sensor is located in the left external rear-view mirror. The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is lower than 0.498 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The control module uses a constant outside temperature, +20 °C.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to ground in the signal cable.
- Damaged outside temperature sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007200
Condition
The engine control module (ECM) checks the signal from the outside temperature sensor.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the outside temperature sensor is too low.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- The value is set to the constant 20 °C.
Possible Source
- The signal cable is short-circuited to ground.
- Damaged outside temperature sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
Scheme 297
- Ignition on Read the diagnostic status and fault status for the diagnostic trouble code by selecting the diagnostic trouble code in the list. Check if the malfunction is permanent or intermittent by reading off the diagnostic trouble code's status when the diagnostic status is "Implemented". If the trouble status is "Malfunction found", this indicates that the malfunction is permanent. If the trouble status is "No malfunction found", this indicates that the malfunction is intermittent and not active right now. NOTE: Trouble status cannot go from "Malfunction found" to "No malfunction found" in the same operating cycle.
- Continue Refer to «CHECKING COMPONENTS AND WIRING»(ref-476778-S06834881992012060500000)
Scheme 298
Scheme 299
- Ignition off Check signal cable for short-circuit to ground. Check between: Engine control module (ECM) #B29 (#C29) and outdoor temperature sensor's connector #1, signal cable (+). Remedy as necessary. Other information see «CONNECTING THE BREAKOUT BOX»(ref-476691-S27857399862012060500000) see «SIGNAL SPECIFICATION, ENGINE CONTROL MODULE (ECM)»(/volvo/xc90/i-2002-2006/remont/engine-control-systems/#engine-control-signal-description-and-specification__signal-specification-engine-control-module-ecm) For replacing outdoor temperature sensor: «SENSORS FOR CHECK AND WARNING SYSTEM»(ref-476779-S28546346902012060500000) see «CHECKING WIRING AND TERMINALS»(/volvo/xc90/i-2002-2006/remont/body-electrical/#wiring-and-terminals-general-diagnostics-and-tests__contents)
- Continue Refer to «VERIFICATION»(ref-476778-S36223631042012060500000)
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007300
Condition
Engine control module (ECM) measures the ambient temperature using an outside temperature sensor. The sensor is located in the left external rear-view mirror. The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 4.941 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The control module uses a constant outside temperature, +20 °C.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Open-circuit in the signal cable.
- Damaged outside temperature sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007300
Condition
The engine control module (ECM) checks the signal from the outside temperature sensor.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the outside temperature sensor is too high.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- The value is set to the constant 20 °C.
Possible Source
- Short-circuit to supply voltage in the signal cable.
- Open circuit on signal cable.
- Damaged outside temperature sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007500
Condition
The engine control module (ECM) regulates the position of the camshaft (angle) by regulating the camshaft reset valve.
The engine control module (ECM) checks the control signal for the camshaft reset valve.
The diagnostic trouble code (DTC) is stored if the control module detects that
- Signal missing.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
- Battery voltage higher than 10.5 V.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- Camshaft control switched off.
Possible Source
- Open circuit on signal cable.
- Open-circuit in the power supply cable.
- Damaged camshaft reset valve.
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Uneven idle
- High emissions
- Engine stalls when driving
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007500
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
Condition
Scheme 300
The engine control module (ECM) regulates the position of the camshaft (angle) by controlling the camshaft reset valve. The diagnostic trouble code (DTC) is stored if the control module detects that the control signal for the camshaft rest valve is missing.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- Camshaft control switched off.
Possible Source
- Open-circuit on the signal cable.
- Open-circuit on the voltage supply cable.
- Damaged camshaft reset valve
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Uneven idle.
- Poor performance.
- The engines cuts out whilst driving.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007600
Condition
The engine control module (ECM) regulates the position of the camshaft (angle) by regulating the camshaft reset valve.
The engine control module (ECM) checks the control signal for the camshaft reset valve.
The diagnostic trouble code (DTC) is stored if the control module detects that
- Control signal is too low.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
- Battery voltage higher than 10.5 V.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- Camshaft control switched off.
Possible Source
- Contact resistance or oxidation in the connectors.
- The signal cable is short-circuited to ground.
- The power supply cable is short-circuited to ground.
- Damaged camshaft reset valve.
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Uneven idle
- High emissions
- Engine stalls when driving
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007600
Condition
The engine control module (ECM) regulates camshaft position (angle position) by regulating the changeover valve camshaft. The diagnostic trouble code is generated if the control module detects that the control signal for the changeover valve camshaft is too low.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- Camshaft regulation deactivated.
Possible Source
- Contact resistance in the connectors.
- The signal cable is short-circuited to ground.
- The power cable is short-circuited to ground.
- Damaged camshaft reset valve
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Uneven idle.
- Poor performance.
- The engine stops while running.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007700
Condition
The engine control module (ECM) regulates the position of the camshaft (angle) by regulating the camshaft reset valve.
The engine control module (ECM) checks the control signal for the camshaft reset valve.
The diagnostic trouble code (DTC) is stored if the control module detects that
- Control signal is too high.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
- Battery voltage higher than 10.5 V.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- Camshaft control switched off.
Possible Source
- Short-circuit to supply voltage in the signal cable.
- Damaged camshaft reset valve.
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Uneven idle
- High emissions
- Engine stalls when driving
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P007700
Condition
The engine control module (ECM) regulates camshaft position (angle position) by regulating the changeover valve camshaft. The diagnostic trouble code is generated if the control module detects that the control signal for the changeover valve camshaft is too high.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- Camshaft regulation deactivated.
Possible Source
- The signal cable is short-circuited to voltage.
- Damaged camshaft reset valve
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Uneven idle.
- Poor performance.
- The engine stops while running.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P008700
Condition
The engine control module (ECM) controls the fuel pressure via the fuel pump (FP) control module using a pulse width modulation (PWM) signal.
The fuel pump (FP) control module then controls the fuel pump (FP) depending on the pressure requested by the engine control module (ECM).
The diagnostic trouble code (DTC) is stored if the control module detects that
- Actual pressure (gauged pressure from the fuel pressure sensor) becomes too low compared with the requested pressure (engine control module (ECM) target value) for a certain amount of time.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Engine running.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- Fuel pump (FP) is controlled using a calculated value.
Possible Source
- Leakage in the fuel lines.
- Damaged fuel pressure sensor.
- Damaged fuel pump.
- Damaged fuel pump (FP) control module.
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Poor performance
- Engine stalls
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P008700
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P008800
Condition
The engine control module (ECM) controls the fuel pressure via the fuel pump (FP) control module using a pulse width modulation (PWM) signal.
The fuel pump (FP) control module then controls the fuel pump (FP) depending on the pressure requested by the engine control module (ECM).
The diagnostic trouble code (DTC) is stored if the control module detects that
- Actual pressure (gauged pressure from the fuel pressure sensor) becomes too high compared with the requested pressure (engine control module (ECM) target value) for a certain amount of time.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Engine running.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- Fuel pump (FP) is controlled using a calculated value.
Possible Source
- Leakage in the fuel lines.
- Damaged fuel pressure sensor.
- Damaged fuel pump.
- Damaged fuel pump (FP) control module.
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Poor performance
- Engine stalls
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P008800
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P008900
Condition
the engine control module (ECM) controls the fuel pressure via the fuel pump (FP) control module using a pulse width modulation (PWM) signal. The fuel pump (FP) control module then controls the fuel pump (FP) depending on the pressure requested by the engine control module (ECM).
The diagnostic trouble code (DTC) (measured pressure from the fuel pressure sensor) is stored if the actual pressure varies/pulses too much.
The diagnostic trouble code (DTC) can be diagnosed when the engine is running.
Substitute Value
- The fuel pump (FP) is controlled using a calculated value.
Possible Source
- Air in the fuel lines.
- Blocked fuel lines.
- Damaged fuel pressure sensor.
- Damaged fuel pump.
- Damaged fuel pump (FP) control module.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Poor performance.
- Engine stops.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P008968
Condition
Note. This diagnostic trouble code (DTC) status is an event controlled diagnostic trouble code (DTC). An event controlled diagnostic trouble code (DTC) does not mean that there is a fault in the control module when it is active, but is designed as information.
Engine control module (ECM) monitors the fuel system. If the control module detects that the fuel pressure is too low for a certain time, the diagnostic trouble code is generated.
The diagnostic trouble code (DTC) can be diagnosed when the engine is running.
Substitute Value
- Nothing.
Possible Source
- This diagnostic trouble code (DTC) is not caused by a fault that needs to be remedied.
Fault symptom[s]
- None.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P008968
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P009100
Condition
the engine control module (ECM) controls the fuel pressure via the fuel pump (FP) control module using a pulse width modulation (PWM) signal. The fuel pump (FP) control module then controls the fuel pump (FP) depending on the pressure requested by the engine control module (ECM).
The diagnostic trouble code (DTC) is stored if the actual pressure (gauged pressure from the fuel pressure sensor) becomes too low compared with the requested pressure (engine control module (ECM) target value) for a certain amount of time.
The diagnostic trouble code (DTC) can be diagnosed when the engine is running.
Substitute Value
- The fuel pump (FP) is controlled using a calculated value.
Possible Source
- Leakage in the fuel lines.
- Damaged fuel pressure sensor.
- Damaged fuel pump.
- Damaged fuel pump (FP) control module.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Poor performance.
- Engine stops.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P009200
Condition
the engine control module (ECM) controls the fuel pressure via the fuel pump (FP) control module using a pulse width modulation (PWM) signal. The fuel pump (FP) control module then controls the fuel pump (FP) depending on the pressure requested by the engine control module (ECM).
The diagnostic trouble code (DTC) (Signal too high/low) is stored if the actual pressure (gauged pressure from the fuel pressure sensor) becomes too high compared with the requested pressure (engine control module (ECM) target value) for a certain amount of time.
The diagnostic trouble code (DTC) can be diagnosed when the engine is running.
Substitute Value
- The fuel pump (FP) is controlled using a calculated value.
Possible Source
- Damaged fuel pressure sensor.
- Damaged fuel pump (FP) control module.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Poor performance.
- Engine stops.
Condition
The engine control module (ECM) checks the signal from the outside temperature sensor in the left door mirror. If the control module registers that the value from the outdoor temperature sensor deviates more than 25 °C from the value calculated the control module, a diagnostic trouble code is generated.
The control module's test for the diagnostic trouble code starts once per driving cycle and first when the engine temperature is above 80 °C. Also, 4 kg of air shall have been used at vehicle speed above 40 km/h.
Substitute Value
- The driving cycle's lowest value from air temperature sensor inlet (integrated in mass airflow sensor) is used.
- In case of faulty air temperature sensor inlet (integrated in mass airflow sensor) constant temperature is used, 20 °C.
Possible Source
- Contact resistance in connector.
- Damaged outside temperature sensor.
Fault symptom[s]
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication
Condition
The engine control module (ECM) checks the signal from the outside temperature sensor in the left door mirror. If the control module registers that the value from the outdoor temperature sensor deviates more than 25 °C from the value calculated the control module, a diagnostic trouble code is generated.
The control module's test for the diagnostic trouble code starts once per driving cycle and first when the engine temperature is above 80 °C. Also, 4 kg of air shall have been used at vehicle speed above 40 km/h.
Substitute Value
- The driving cycle's lowest value from air temperature sensor inlet (integrated in mass airflow sensor) is used.
- In case of faulty air temperature sensor inlet (integrated in mass airflow sensor) constant temperature is used, 20 °C.
Possible Source
- Contact resistance in connector.
- Damaged outside temperature sensor.
Fault symptom[s]
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010000
Condition
Engine control module (ECM) measures the amount of air that passes through the inlet manifold using a mass air flow sensor. The control module checks the direct voltage from the sensor.
Note. The mass air flow sensor and air temperature sensor are integrated in the same component.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is lower than 0.049 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Scheme 301
Substitute Value
- A value calculated from engine speed (RPM) and pressure in the intake manifold is used.
Possible Source
- Open-circuit in signal cable or ground lead.
- Contact resistance and oxidation in the terminals.
- Short-circuit to ground in the signal cable.
- Damaged mass air flow (MAF) sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010000
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010100
Condition
The engine control module (ECM) measures the air mass through the intake manifold using a sensor.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the mass air flow (MAF) sensor is too low.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- A value calculated from factors such as engine speed and air pressure in the intake manifold is used.
Possible Source
- The signal cable is short-circuited to ground.
- Open-circuit in the signal cable.
- Damaged mass air flow sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010100
Condition
Scheme 302
The engine control module (ECM) measures the air mass through the intake manifold using a sensor.
The diagnostic trouble code is generated if the control module detects that the sensor value deviates too much from the value calculated based on a model.
The diagnostic trouble code can be diagnosed when idling with a warm engine.
Substitute Value
- A value calculated from factors such as engine speed and air pressure in the intake manifold is used.
Possible Source
- Contact resistance in connector.
- Damaged fresh air hose.
- Damaged mass air flow sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
Scheme 303
Scheme 304
Scheme 305
Scheme 306
- Ignition off. Check the connector and terminals for the mass air flow (MAF) sensor. Check for contact resistance. Check for oxidation. Check the intake system for air leakage. Remedy as necessary. Other information see «AIR LEAKS IN THE INTAKE SYSTEM, CHECKING»(ref-476750-S38054557722012060500000) see «MASS AIR FLOW (MAF) SENSOR, REPLACING»(ref-476751-S05601138252012060500000) see «CHECKING WIRING AND TERMINALS»(/volvo/xc90/i-2002-2006/remont/body-electrical/#wiring-and-terminals-general-diagnostics-and-tests)
- Continue Refer to «CHECKING THE MASS AIR FLOW (MAF) SENSOR»(ref-476778-S40222428762012060500000)
Scheme 307
Scheme 308
- Engine running. Check and compare the calculated air mass with the actual, read-out from mass air flow sensor. Try measuring at different speeds (RPM). HINT: Differences of more than 20 % between the signals indicate a defective mass air flow sensor. NOTE: When replacing mass air flow sensor. Repeat the check to verify that the replacement solved the problem. Remedy as necessary. Other information see «MASS AIR FLOW (MAF) SENSOR, REPLACING»(ref-476751-S05601138252012060500000)
Is the function OK?
- YES Refer to «VERIFICATION»(ref-476778-S23485051122012060500000)
- NO FAULT TRACING FAILED: The fault should have been detected and remedied. As this is not the case fault-tracing has failed. Exit fault-tracing for this diagnostic trouble code (DTC) or make another attempt.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010200
Condition
Engine control module (ECM) measures the amount of air that passes through the inlet manifold using a mass air flow sensor. The control module checks the direct voltage from the sensor.
Note. The mass air flow sensor and air temperature sensor are integrated in the same component.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is lower than 0.649 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The control module uses a calculated value for the air mass.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to ground in the signal cable.
- Open-circuit in the signal cable.
- Damaged mass air flow (MAF) sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010200
Condition
The engine control module (ECM) measures the air mass through the intake manifold using a sensor.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the mass air flow (MAF) sensor is too low.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- A value calculated from factors such as engine speed and air pressure in the intake manifold is used.
Possible Source
- The signal cable is short-circuited to ground.
- Open-circuit in the signal cable.
- Damaged mass air flow sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010300
Condition
Engine control module (ECM) measures the amount of air that passes through the inlet manifold using a mass air flow sensor. The control module checks the direct voltage from the sensor.
Note. The mass air flow sensor and air temperature sensor are integrated in the same component.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 4.6 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The control module uses a calculated value for the air mass.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Damaged mass air flow (MAF) sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010300
Condition
The engine control module (ECM) measures the air mass through the intake manifold using a sensor.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the mass air flow (MAF) sensor is too high.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- A value calculated from factors such as engine speed and air pressure in the intake manifold is used.
Possible Source
- The signal cable is short-circuited to voltage.
- Damaged mass air flow sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010500
Condition
The engine control module (ECM) measures the pressure in the intake manifold using an air pressure sensor. The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 4.951 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Scheme 309
Substitute Value
- The control module uses a constant air pressure in the inlet manifold.
Possible Source
- Open-circuit in signal cable or ground lead.
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Damaged air pressure sensor in the inlet manifold.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010500
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010600
Condition
Scheme 310
The engine control module (ECM) measures the air pressure in the intake manifold using an air pressure sensor.
The diagnostic trouble code is generated if the control module detects that the air pressure sensor value deviates too much from the value calculated based on a model.
The diagnostic trouble code can be diagnosed at a fixed engine speed over 1250 RPM when the engine is warm (at least 70 °C).
Substitute Value
- The signal from the air pressure sensor in the intake manifold is set to a constant.
- Load/airflow calculations are carried out regardless of the signal from the air pressure sensor.
Possible Source
- Contact resistance in connector.
- Faulty hose connection.
- Damaged air pressure sensor in the intake manifold.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010600
Condition
The engine control module (ECM) measures the air pressure in the intake manifold using an air pressure sensor.
The diagnostic trouble code is generated if the control module detects that the air pressure sensor value deviates too much from the value calculated based on a model.
The diagnostic trouble code can be diagnosed at a fixed engine speed over 1250 RPM when the engine is warm (at least 70 °C).
Substitute Value
- The signal from the air pressure sensor in the intake manifold is set to a constant.
- Load/airflow calculations are carried out regardless of the signal from the air pressure sensor.
Possible Source
- Contact resistance in connector.
- Faulty hose connection.
- Damaged air pressure sensor in the intake manifold.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010700
Condition
The engine control module (ECM) measures the pressure in the intake manifold using an air pressure sensor. The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is lower than 0.649 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The control module uses a constant air pressure in the inlet manifold.
- The control module performs load and air flow calculations independent of the signal from the air pressure sensor in the inlet manifold.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to ground in the signal cable.
- Damaged air pressure sensor in the inlet manifold.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010700
Condition
The engine control module (ECM) measures the air pressure in the intake manifold using an air pressure sensor.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the manifold absolute pressure (MAP) sensor in the intake manifold is too low.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- The signal from the air pressure sensor in the intake manifold is set to a constant.
- Load/airflow calculations are carried out regardless of the signal from the air pressure sensor.
Possible Source
- The signal cable is short-circuited to ground.
- Damaged air pressure sensor in the intake manifold.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010800
Condition
The engine control module (ECM) measures the pressure in the intake manifold using an air pressure sensor. The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 4.6 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The control module uses a constant air pressure in the inlet manifold.
- The control module performs load and air flow calculations independent of the signal from the air pressure sensor in the inlet manifold.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Open-circuit in the signal cable.
- Damaged air pressure sensor in the inlet manifold.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P010800
Condition
The engine control module (ECM) measures the air pressure in the intake manifold using an air pressure sensor.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the manifold absolute pressure (MAP) sensor in the intake manifold is too high.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- The signal from the air pressure sensor in the intake manifold is set to a constant.
- Load/airflow calculations are carried out regardless of the signal from the air pressure sensor.
Possible Source
- The signal cable is short-circuited to voltage.
- Open-circuit in the signal cable.
- Damaged air pressure sensor in the intake manifold.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011000
Condition
Engine control module (ECM) measures the temperature of the inducted air using an air temperature sensor in the inlet manifold. The control module checks the direct voltage from the sensor.
Note. The mass air flow sensor and air temperature sensor are integrated in the same component.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 4.951 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The value for the inlet temperature is generated to equal to the value for the fuel temperature.
Possible Source
- Open-circuit in signal cable or ground lead.
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Damaged intake air temperature (IAT) sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011000
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011100
Condition
The engine control module (ECM) checks the signal from the air temperature sensor in the intake manifold.
The diagnostic trouble code is generated if the control module detects that the value from the air temperature sensor deviates too much from the value of the engine temperature sensor after the engine has been switched off for a period of time.
The diagnostic trouble code can be diagnosed once per operating cycle with the ignition on, but only once engine temperature has fallen to approx. 55 °C from operating temperature since the previous operating cycle.
Substitute Value
- The value for the inlet temperature is generated to equal to the value for the fuel temperature.
Possible Source
- Contact resistance in connector.
- Damaged air temperature sensor (integrated in mass air flow sensor).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011100
Condition
The engine control module (ECM) checks the signal from the air temperature sensor in the intake manifold.
The diagnostic trouble code is generated if the control module detects that the value from the air temperature sensor deviates too much from the value of the engine temperature sensor after the engine has been switched off for a period of time.
The diagnostic trouble code can be diagnosed once per operating cycle with the ignition on, but only once engine temperature has fallen to approx. 55 °C from operating temperature since the previous operating cycle.
Substitute Value
- The intake temperature value is set to 30 °C.
Possible Source
- Contact resistance in connector.
- Damaged air temperature sensor (integrated in mass air flow sensor).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011200
Condition
Engine control module (ECM) measures the temperature of the inducted air using an air temperature sensor in the inlet manifold. The control module checks the direct voltage from the sensor.
Note. The mass air flow sensor and air temperature sensor are integrated in the same component.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is lower than 0.112 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The control module uses a constant air temperature in the inlet manifold, +30 °C.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to ground in the signal cable.
- Damaged intake air temperature (IAT) sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011200
Condition
The engine control module (ECM) measures the temperature of intake air using a temperature sensor in the intake manifold (integrated in the mass air flow sensor).
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the intake air temperature (IAT) sensor in the intake manifold is too low.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- The intake temperature value is set to 30 °C.
Possible Source
- The signal cable is short-circuited to ground.
- Damaged air temperature sensor (integrated in mass air flow sensor).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011300
Condition
Engine control module (ECM) measures the temperature of the inducted air using an air temperature sensor in the inlet manifold. The control module checks the direct voltage from the sensor.
Note. The mass air flow sensor and air temperature sensor are integrated in the same component.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 4.902 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The control module uses a constant air temperature in the inlet manifold, +30 °C.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Open-circuit in the signal cable.
- Damaged intake air temperature (IAT) sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011300
Condition
The engine control module (ECM) measures the temperature of intake air using a temperature sensor in the intake manifold (integrated in the mass air flow sensor).
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the intake air temperature (IAT) sensor in the intake manifold is too high.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- The intake temperature value is set to 30 °C.
Possible Source
- The signal cable is short-circuited to supply voltage.
- Open-circuit in the signal cable.
- Damaged air temperature sensor (integrated in mass air flow sensor).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011400
Condition
The engine control module (ECM) checks the signal from the temperature sensor in the intake manifold under two different driving conditions. The check is first made during high airflow while the vehicle is travelling and then while the vehicle is stationary and idling. The diagnostic trouble code is generated if the control module registers that the temperature difference between these two measurements is unreasonably similar.
Substitute Value
- The value for the inlet temperature is generated to equal to the value for the fuel temperature.
Possible Source
- Contact resistance in connector.
- Damaged air temperature sensor (integrated in mass air flow sensor).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011400
Condition
The engine control module (ECM) checks the signal from the temperature sensor in the intake manifold under two different driving conditions. The check is first made during high airflow while the vehicle is travelling and then while the vehicle is stationary and idling. The diagnostic trouble code is generated if the control module registers that the temperature difference between these two measurements is unreasonably similar.
Substitute Value
- The intake temperature value is set to 30 °C.
Possible Source
- Contact resistance in connector.
- Damaged air temperature sensor (integrated in mass air flow sensor).
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011500
Condition
Engine control module (ECM) measures the engine temperature using a coolant temperature sensor. The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 4.951 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Scheme 311
Substitute Value
- None.
Possible Source
- Open-circuit in signal cable or ground lead.
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Damaged coolant temperature sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Engine is difficult to start
- Uneven idle
- Engine stalls
- Electric cooling fan runs continuously, when ignition is off
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011500
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011600
Condition
Scheme 312
The engine control module (ECM) monitors the engine temperature using a sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that the value from the engine coolant temperature (ECT) sensor deviates too much from the value for intake temperature after the engine has been switched off for an extended period.
The diagnostic trouble code is diagnosed at ignition on once per driving cycle, but only when the fuel temperature has dropped by at least 20 °C and has ended up near the outdoor temperature from the previous driving cycle.
HINT: The diagnostic trouble code may be set incorrectly if, for example, a retrofitted engine heated is used.
Substitute Value
- During start-up: The intake air temperature (IAT) is used if no fault has been detected on the intake temperature sensor
- After start-up: The engine coolant temperature (ECT) is calculated based on a model.
- Engine cooling fan (FC) is activated at the predefined speed.
Possible Source
- Contact resistance in connector.
- Damaged engine coolant temperature sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Engine reluctant to start.
- Uneven idle.
- Engine stops.
- The engine cooling fan (FC) runs continuously even when the ignition is switched off.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011600
Condition
The engine control module (ECM) monitors the engine temperature using a sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that the value from the engine coolant temperature (ECT) sensor deviates too much from the value for intake temperature after the engine has been switched off for an extended period.
The diagnostic trouble code (DTC) is diagnosed once per operating cycle, with the ignition on, but only when the temperature in the intake manifold has dropped by approximately 15°C, and has stabilized to near the ambient temperature since the previous operating cycle.
Substitute Value
- During start-up: The intake air temperature (IAT) is used if no fault has been detected on the intake temperature sensor
- After start-up: The engine coolant temperature (ECT) is calculated based on a model.
- Engine cooling fan (FC) is activated at the predefined speed.
Possible Source
- Contact resistance in connector.
- Damaged engine coolant temperature sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Engine reluctant to start.
- Uneven idle.
- Engine stops.
- The engine cooling fan (FC) runs continuously even when the ignition is switched off.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011629
Condition
The engine control module (ECM) monitors the engine temperature using a sensor.
If the control module detects that the value from the engine temperature sensor does not change during engine warm-up phase, the diagnostic trouble code is generated.
The control module's for the diagnostic trouble code starts when the calculated engine temperature has increased by 20 °C and the fuel temperature by 5 °C since engine start, but only if the fuel temperature has dropped by at least 5 °C since the end of the previous driving cycle.
Substitute Value
- An estimated temperature value is used.
Possible Source
- Contact resistance in connector.
- Damaged engine coolant temperature sensor.
Fault symptom[s]
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication
Condition
The engine control module (ECM) monitors the engine temperature using a sensor.
If the control module detects that the value from the engine temperature sensor does not change during engine warm-up phase, the diagnostic trouble code is generated.
The control module's for the diagnostic trouble code starts when the calculated engine temperature has increased by 20 °C and the fuel temperature by 5 °C since engine start, but only if the fuel temperature has dropped by at least 5 °C since the end of the previous driving cycle.
Substitute Value
- An estimated temperature value is used.
Possible Source
- Contact resistance in connector.
- Damaged engine coolant temperature sensor.
Fault symptom[s]
- Warning lights and chimes/Malfunction Indicator Light ("Check engine" light) indication/no indication
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011700
Condition
Engine control module (ECM) measures the engine temperature using a coolant temperature sensor. The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is lower than 0.151 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- During start:The control module assumes that the coolant temperature is the same as the air temperature in the inlet manifold.
- After start:The control module uses a calculated coolant temperature.
- The control module controls the cooling fan (FC) according to pre-defined speed.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to ground in the signal cable.
- Damaged coolant temperature sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Engine is difficult to start
- Uneven idle
- Engine stalls
- Electric cooling fan runs continuously, when ignition is off
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011700
Condition
The engine control module (ECM) monitors the engine temperature using a sensor.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the engine coolant temperature (ECT) sensor is too low.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- During start-up: The intake air temperature (IAT) is used if no fault has been detected on the intake temperature sensor.
- After start-up: The engine coolant temperature (ECT) is calculated based on a model.
- Engine cooling fan (FC) is activated at the predefined speed.
Possible Source
- The signal cable is short-circuited to ground.
- Damaged engine coolant temperature sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Engine reluctant to start.
- Uneven idle.
- Engine stops.
- The engine cooling fan (FC) runs continuously even when the ignition is switched off.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011800
Condition
Engine control module (ECM) measures the engine temperature using a coolant temperature sensor. The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 4.9 V.
- Incorrect value lasts longer than 9 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- During start:The control module assumes that the coolant temperature is the same as the air temperature in the inlet manifold.
- After start:The control module uses a calculated coolant temperature.
- The control module controls the cooling fan (FC) according to pre-defined speed.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Open-circuit in the signal cable.
- Damaged coolant temperature sensor.
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Engine is difficult to start
- Uneven idle
- Engine stalls
- Electric cooling fan runs continuously, when ignition is off
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P011800
Condition
The engine control module (ECM) monitors the engine temperature using a sensor.
The diagnostic trouble code (DTC) is stored if the Engine Control Module (ECM) detects that the signal from the engine coolant temperature (ECT) sensor is too high.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- During start-up: The intake air temperature (IAT) is used if no fault has been detected on the intake temperature sensor.
- After start-up: The engine coolant temperature (ECT) is calculated based on a model.
- Engine cooling fan (FC) is activated at the predefined speed.
Possible Source
- The signal cable is short-circuited to voltage.
- Open-circuit in the signal cable.
- Damaged engine coolant temperature sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Engine reluctant to start.
- Uneven idle.
- Engine stops.
- The engine cooling fan (FC) runs continuously even when the ignition is switched off.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P012023
Condition
The engine control module (ECM) checks the pulse width modulation (PWM) signal and the analog signal from the accelerator pedal (AP) position sensor. The analog signal is directly connected to the Central electronic module (CEM) and the signal is transmitted via CAN communication to the Engine control module (ECM). The pulse width modulation (PWM) signal is directly connected to the engine control module (ECM).
The PWM signal is used to determine the current accelerator pedal position in a fault free system.
The engine control module (ECM) checks the PWM signal.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The PWM signal is too low.
- Incorrect value lasts longer than 16 seconds.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Scheme 313
Substitute Value
- The control module uses analog signals (via CAN).
- The control module uses the accelerator pedal position corresponding to the released position when the brake pedal is depressed at the same time.
Possible Source
- Short-circuit to ground in the signal cable.
- Damaged accelerator pedal (AP) position sensor.
Fault symptom[s]
- Message in information display
- Accelerator pedal ignored during braking
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P012023
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P012024
Condition
The engine control module (ECM) checks the pulse width modulation (PWM) signal and the analog signal from the accelerator pedal (AP) position sensor. The analog signal is directly connected to the Central electronic module (CEM) and the signal is transmitted via CAN communication to the Engine control module (ECM). The pulse width modulation (PWM) signal is directly connected to the engine control module (ECM).
The PWM signal is used to determine the current accelerator pedal position in a fault free system.
The engine control module (ECM) checks the PWM signal.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The PWM signal is too high.
- Incorrect value lasts longer than 16 seconds.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The control module uses analog signals (via CAN).
- The control module uses the accelerator pedal position corresponding to the released position when the brake pedal is depressed at the same time.
Possible Source
- Short-circuit to supply voltage in the signal cable.
- Open-circuit in the signal cable.
- Open-circuit in the power supply (12V) to the accelerator pedal (AP) position sensor.
- Open-circuit in the ground lead.
- Damaged accelerator pedal (AP) position sensor.
Fault symptom[s]
- Message in information display
- Accelerator pedal ignored during braking
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P012024
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P012038
Condition
The engine control module (ECM) checks the pulse width modulation (PWM) signal and the analog signal from the accelerator pedal (AP) position sensor. The analog signal is directly connected to the Central electronic module (CEM) and the signal is transmitted via CAN communication to the Engine control module (ECM). The pulse width modulation (PWM) signal is directly connected to the engine control module (ECM).
The PWM signal is used to determine the current accelerator pedal position in a fault free system.
The engine control module (ECM) checks the PWM signal.
The diagnostic trouble code (DTC) is stored if the control module detects that
- Incorrect frequency on the PWM signal.
- Incorrect value lasts longer than 16 seconds.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Ignition switch position II.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- The control module uses analog signals (via CAN).
- The control module uses the accelerator pedal position corresponding to the released position when the brake pedal is depressed at the same time.
Possible Source
- Loose connections or contact resistance in the terminals on the pulse width modulation (PWM) signal cable.
- Interference on the pulse width modulation (PWM) signal cable.
- Damaged accelerator pedal (AP) position sensor.
Fault symptom[s]
- Message in information display
- Accelerator pedal ignored during braking
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P012038
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P012200
Condition
Scheme 314
The engine control module (ECM) receives a pulse width modulation (PWM) signal and an analog signal from the accelerator pedal position sensor. In a fault-free system, the analog signal is used to determine the position of the accelerator pedal (AP).
The diagnostic trouble code (DTC) is stored if the control module registers that the analog signal is too low.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- Acceleration is ignored when braking.
- Pulse width modulation (PWM) signal is used.
Possible Source
- The signal cable is short-circuited to ground.
- Open-circuit on the signal cable.
- Interruption of power supply.
- Open circuit in ground cable.
- Damaged accelerator pedal (AP) position sensor.
Fault symptom[s]
- Message in the display.
- Poor response from the accelerator pedal.
- Accelerator pedal (AP) is ignored when braking.
- Maximum vehicle speed reduced.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P012300
Condition
The engine control module (ECM) receives a pulse width modulation (PWM) signal and an analog signal from the accelerator pedal position sensor. In a fault-free system, the analog signal is used to determine the position of the accelerator pedal (AP).
The diagnostic trouble code (DTC) is stored if the control module registers that the analog signal is too high.
The diagnostic trouble code can be diagnosed when the ignition is on.
Substitute Value
- Acceleration is ignored when braking.
- Pulse width modulation (PWM) signal is used.
Possible Source
- The signal cable is short-circuited to voltage.
- Damaged accelerator pedal (AP) position sensor.
Fault symptom[s]
- Message in the display.
- Poor response from the accelerator pedal.
- Accelerator pedal (AP) is ignored when braking.
- Maximum vehicle speed reduced.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P012800
Condition
Checking of how the temperature increase proceeds takes place during the engine's warm-up phase. It is compared to the expected temperature increase, calculated according to load conditions and start temperature, among others.
If engine control module (ECM) registers that measured engine temperature deviates too much from the calculated, the diagnostic trouble code is generated.
The diagnostic trouble code is diagnosed once per operating cycle, with the engine running, when calculated engine temperature reaches 80 °C, but only if engine start is performed when measured engine temperature is between -10 and 63 °C.
Substitute Value
- Nothing.
Possible Source
- Damaged thermostat.
- Contact resistance and oxidation in cables and connections for the engine temperature sensor.
- Damaged engine temperature sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Engine does not get warm.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P012800
Condition
Checking of how the temperature increase proceeds takes place during the engine's warm-up phase. It is compared to the expected temperature increase, calculated according to load conditions and start temperature, among others.
If engine control module (ECM) registers that measured engine temperature deviates too much from the calculated, the diagnostic trouble code is generated.
The diagnostic trouble code is diagnosed once per operating cycle, with the engine running, when calculated engine temperature reaches 80 °C, but only if engine start is performed when measured engine temperature is between -10 and 63 °C.
Substitute Value
- Nothing.
Possible Source
- Damaged thermostat.
- Contact resistance and oxidation in cables and connections for the engine temperature sensor.
- Damaged engine temperature sensor.
Fault symptom[s]
- Malfunction indicator lamp (MIL) lit.
- Engine does not get warm.
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P013100
Condition
The Engine control module (ECM) measures the volume of oxygen in the exhaust gases before the three-way catalytic converter (TWC) using a front heated oxygen sensor (HO2S) (bank 1). The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is lower than 1.8 V.
- Incorrect value lasts longer than 5 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Engine running for at least 2 minutes.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Scheme 315
Substitute Value
- None.
Possible Source
- Contact resistance and oxidation in the terminals.
- The signal cable is short-circuited to ground.
- Open-circuit in the signal cable.
- Damaged front heated oxygen sensor (bank 1).
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Poor performance
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P013100
Condition
The Engine control module (ECM) measures the volume of oxygen in the exhaust gases before the three-way catalytic converter (TWC) using a front heated oxygen sensor (HO2S) (bank 1). The control module checks the direct voltage from the sensor.
Note. Engine cylinders are counted starting from the right side of the vehicle, that is, the cylinder farthest from the engine's flywheel. Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7. Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6, and 8.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is lower than 1.8 V.
- Incorrect value lasts longer than 5 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Engine running for at least 2 minutes.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- None.
Possible Source
- Contact resistance and oxidation in the terminals.
- The signal cable is short-circuited to ground.
- Open-circuit in the signal cable.
- Damaged front heated oxygen sensor (bank 1).
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Poor performance
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P013200
Condition
The Engine control module (ECM) measures the volume of oxygen in the exhaust gases before the three-way catalytic converter (TWC) using a front heated oxygen sensor (HO2S) (bank 1). The control module checks the direct voltage from the sensor.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 3.8 V.
- Incorrect value lasts longer than 5 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Engine running for at least 2 minutes.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- None.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Damaged front heated oxygen sensor (bank 1).
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Poor performance
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P013200
Condition
The Engine control module (ECM) measures the volume of oxygen in the exhaust gases before the three-way catalytic converter (TWC) using a front heated oxygen sensor (HO2S) (bank 1). The control module checks the direct voltage from the sensor.
Note. Engine cylinders are counted starting from the right side of the vehicle, that is, the cylinder farthest from the engine's flywheel. Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7. Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6, and 8.
The diagnostic trouble code (DTC) is stored if the control module detects that
- The direct voltage is higher than 3.8 V.
- Incorrect value lasts longer than 5 seconds.
- Incorrect value lasts for 2 or more subsequent driving cycles.
The control module's test for the diagnostic trouble code (DTC) starts in the event of
- Engine running for at least 2 minutes.
Note. The control module can only detect the fault once the test has been started and the diagnostic trouble code (DTC) is stored when the conditions are met.
Substitute Value
- None.
Possible Source
- Contact resistance and oxidation in the terminals.
- Short-circuit to supply voltage in the signal cable.
- Damaged front heated oxygen sensor (bank 1).
Fault symptom[s]
- Malfunction indicator light (MIL), on
- Poor performance
DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P013300
Condition
Engine Control Module (ECM) checks the front heated oxygen sensor's signal (bank 1).
The Engine control module (ECM) actively regulates between rich and lean fuel / air mixture and registers how well the front heated oxygen sensor (HO2S) signal follows these changes.
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers that the heated oxygen sensor (HO2S) is not activated or is activated too slowly.
The diagnostic trouble code (DTC) can be diagnosed with the engine at operating temperature, approximately 20 minutes after the engine has first been started if the vehicle is driven (normal road load) at 70-90 km/h for 40-50 seconds.
Substitute Value
- Nothing.
Possible Source
- Contact resistance in the terminals
- Damaged front heated oxygen sensor (HO2S).
Fault symptom[s]
- Poor performance.
- Malfunction indicator lamp (MIL) lit.
see DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION ECM-P013300
Condition
Engine Control Module (ECM) checks the front heated oxygen sensor's signal (bank 1).
- Bank 1 (cylinder row nearest the front): cylinders 1, 3, 5 and 7.
- Bank 2 (cylinder row furthest to the rear, nearest the passenger compartment): cylinders 2, 4, 6, and 8.
The Engine control module (ECM) actively regulates between rich and lean fuel / air mixture and registers how well the front heated oxygen sensor (HO2S) signal follows these changes.
The diagnostic trouble code (DTC) is stored if the engine control module (ECM) registers that the heated oxygen sensor (HO2S) is not activated or is activated too slowly.
The diagnostic trouble code (DTC) can be diagnosed with the engine at operating temperature, approximately 20 minutes after the engine has first been started if the vehicle is driven (normal road load) at 70-90 km/h for 40-50 seconds.
Substitute Value
- Nothing.
Possible Source
- Contact resistance in the terminals
- Damaged front heated oxygen sensor (HO2S).
Fault symptom[s]
- Poor performance.
- Malfunction indicator lamp (MIL) lit.