VOLVO DIAGNOSTIC
The accessory electronic module (AEM) has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.
DIAGNOSTIC TROUBLE CODES (DTCS)
A diagnostic trouble code (DTC) is stored if the accessory electronic module (AEM) detects a fault. This control module can store up to 6 diagnostic trouble codes (DTCs), the 3 first and the 3 latest.
Should a fault disappear for any reason after being permanently stored in the control module as a diagnostic trouble code (DTC), the information remains stored in the memory.
READING AND ERASING DIAGNOSTIC TROUBLE CODES (DTCS)
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function. The on-board diagnostic (OBD) system can identify 19 different faults in the accessory electronic module (AEM). These are stored as diagnostic trouble codes (DTCs).
This function can also be used to read off whether the fault is still present (permanent) or whether it has now ceased (intermittent) after the diagnostic trouble code (DTC) has been stored.
Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.
A diagnostic trouble code (DTC) is stored if the control module detects a fault.
There are two diagnostic trouble codes (DTCs) for the Accessory USB unit (AUU). A fault that was detected during the last driving cycle is defined as permanent. Other faults that are detected are defined as intermittent.
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function. Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
A diagnostic trouble code (DTC) is stored if the control module detects a fault.
There are two diagnostic trouble codes (DTCs) for the Accessory USB unit (AUU). A fault that was detected during the last driving cycle is defined as permanent. Other faults that are detected are defined as intermittent.
READING OUT AND ERASING DIAGNOSTIC TROUBLE CODES
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function. Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.
A diagnostic trouble code (DTC) is stored if the control module detects a fault.
If for some reason a fault disappears after the diagnostic trouble code (DTC) has been permanently stored in the control module, information about the fault is stored in the control module.
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function.
Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
Note. Certain functions are unavailable until the diagnostic trouble codes (DTCs) have been erased.
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.
A diagnostic trouble code (DTC) is stored if the control module detects a fault. A fault which is detected in the most recent operating cycle is defined as permanent. Other faults are defined as intermittent.
If for some reason a fault disappears after the diagnostic trouble code (DTC) has been permanently stored in the control module, information about the fault is stored in the control module.
If a fault is no longer permanent, the diagnostic trouble code (DTC) remains as intermittent.
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function.
Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
Note. Certain functions are unavailable until the diagnostic trouble codes (DTCs) have been erased.
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.
A diagnostic trouble code (DTC) is stored if the control module detects a fault. A fault which is detected in the most recent operating cycle is defined as permanent. Other faults which are detected are defined as intermittent.
If for some reason a fault disappears after being stored in the control module as a permanent diagnostic trouble code, the information remains stored in the control module. If a fault is no longer permanent, the diagnostic trouble code remains as intermittent.
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function.
Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
Note. Certain functions are unavailable until the diagnostic trouble codes (DTCs) have been erased.
READING OFF EXTENDED DIAGNOSTIC TROUBLE CODE (DTC) INFORMATION
This function can be used to read parameters, status identifiers and counters stored at the same time as a diagnostic trouble code (DTC). These are called frozen values.
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.
A diagnostic trouble code (DTC) is stored if the control module detects a fault. A fault which is detected in the most recent operating cycle is defined as permanent. Other faults which are detected are defined as intermittent.
If for some reason a fault disappears after being stored in the control module as a permanent diagnostic trouble code, the information remains stored in the control module. If a fault is no longer permanent, the diagnostic trouble code remains as intermittent.
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function.
Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
Note. Certain functions are unavailable until the diagnostic trouble codes (DTCs) have been erased.
This function can be used to read parameters, status identifiers and counters stored at the same time as a diagnostic trouble code (DTC). These are called frozen values.
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.
A diagnostic trouble code (DTC) is stored when control module detects a fault. There are approximately 10 diagnostic trouble codes (DTCs) for Bluetooth phone module (BPM). A fault which was detected in the most recent operating cycle is defined as permanent. Other faults are defined as intermittent.
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function.
Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
This function can be used to read parameters, status identifiers and counters stored at the same time as a diagnostic trouble code (DTC). These are called frozen values.
For more information, see Vehicle communication information in Specifications, other in VIDA (Volvo scan tool).
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.
A diagnostic trouble code (DTC) is stored if the control module detects a fault. A fault which is detected in the most recent operating cycle is defined as permanent. Other faults are defined as intermittent. An operating cycle involves ignition on, the vehicle speed exceeding 20 km/h and the ignition being switched off.
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function.
Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
DIAGNOSTIC FUNCTIONS
See DIAGNOSTIC FUNCTIONS
See FUNCTION
The battery monitoring sensor has certain integrated diagnostics. There is information for the function that can be read out via diagnostics.
Engine control module (ECM)
Description of parameters. See: Engine control module (ECM) - Description of parameters.
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.
A diagnostic trouble code (DTC) is stored if the control module detects a fault. The control module can store up to 32 diagnostic trouble codes (DTCs). A fault which is detected in the most recent operating cycle is defined as permanent. Other faults which are detected are defined as intermittent.
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function.
Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.
This function can be used to read parameters, status identifiers and counters stored at the same time as a diagnostic trouble code (DTC). These are called frozen values.
For further information, see: DESCRIPTION OF FROZEN VALUES, CENTRAL ELECTRONIC MODULE (CEM)
VOLVO DIAGNOSTICS
The control modules have a built-in diagnostic system, Volvo Diagnostics, which continuously monitors internal functions as well as input and output signals. The central locking system is a distributed system which stores diagnostic trouble codes (DTCs) in different control modules depending on where the fault occurred.
A diagnostic trouble code (DTC) is stored if a control module detects a fault in a connected component.
If for some reason a fault disappears after the diagnostic trouble code (DTC) has been permanently stored in a control module, information about the fault remains in the control module.
Central electronic module (CEM)
The central electronic module (CEM) can identify 39 different faults related to the central locking system and is able to store up to 10 diagnostic trouble codes (DTCs) at the same time.
Keyless vehicle module (KVM)
The keyless vehicle module (KVM) can identify 41 different faults in the keyless entry system.
Driver door module (DDM)
The driver door module (DDM) can identify 20 different faults related to the central locking system and is able to store up to 10 diagnostic trouble codes (DTCs) at the same time. The control module also stores diagnostic trouble codes (DTCs) for its corresponding rear door control module. The rear door control module for which the driver door module (DDM) stores diagnostic trouble codes (DTCs) depends on whether the car is left or right-hand drive.
Passenger door module (PDM)
The passenger door module (PDM) can identify 20 different faults related to the central locking system and is able to store up to 10 diagnostic trouble codes (DTCs) at the same time. The control module also stores diagnostic trouble codes (DTCs) for its corresponding rear door control module. The rear door control module for which the passenger door module (PDM) stores diagnostic trouble codes (DTCs) depends on whether the car is left or right-hand drive.
Convertible Roof Module (CRM)
The control module can identify 1 fault related to the central locking system.
The control modules have a built-in diagnostic system, Volvo Diagnostics, which continuously monitors internal functions as well as input and output signals. The central locking system is a distributed system which stores diagnostic trouble codes (DTCs) in different control modules depending on where the fault occurred.
A diagnostic trouble code (DTC) is stored if a control module detects a fault in a connected component.
If for some reason a fault disappears after the diagnostic trouble code (DTC) has been permanently stored in a control module, information about the fault remains in the control module.
Central electronic module (CEM)
The central electronic module (CEM) can identify 39 different faults related to the central locking system and is able to store up to 10 diagnostic trouble codes (DTCs) at the same time.
Keyless vehicle module (KVM)
The keyless vehicle module (KVM) can identify 34 different faults in the keyless entry system.
Driver door module (DDM)
The driver door module (DDM) can identify 20 different faults related to the central locking system and is able to store up to 10 diagnostic trouble codes (DTCs) at the same time. The control module also stores diagnostic trouble codes (DTCs) for its corresponding rear door control module. The rear door control module for which the driver door module (DDM) stores diagnostic trouble codes (DTCs) depends on whether the car is left or right-hand drive.
Passenger door module (PDM)
The passenger door module (PDM) can identify 20 different faults related to the central locking system and is able to store up to 10 diagnostic trouble codes (DTCs) at the same time. The control module also stores diagnostic trouble codes (DTCs) for its corresponding rear door control module. The rear door control module for which the passenger door module (PDM) stores diagnostic trouble codes (DTCs) depends on whether the car is left or right-hand drive.
Convertible Roof Module (CRM)
The control module can identify 1 fault related to the central locking system.
CLIMATE CONTROL MODULE (CCM) DIAGNOSTIC SYSTEM
The climate control module (CCM) has a built-in diagnostic system which continuously monitors internal functions and input and output signals.
Diagnostic trouble codes (DTCs) are stored in the control module if the climate control module (CCM) detects a fault. Each diagnostic trouble code (DTC) has a counter which records the number of operating cycles which have been fault-free since the diagnostic trouble code (DTC) was last stored. A fault which is detected in the present operating cycle is defined as permanent. A fault which is detected in one or more operating cycles (although not the present one) is defined as intermittent.
An operating cycle is the period from when the ignition has been off, then on for at least 10 seconds and finally off for at least 10 seconds.
Stored diagnostic trouble codes (DTCs) can be read off and erased using this function.