Driver Door Module (DDM)

Diagnostic functions, driver's door module (DDM)

General
The control module has a built-in diagnostic system, Volvo Diagnostic, which continuously monitors internal functions as well as input and output signals.

Diagnostic trouble codes (DTCs)
The control module will store a diagnostic trouble code (DTC) if it detects a fault. The driver's door module can store up to 10 diagnostic trouble codes (DTCs).
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 control module.

Reading and erasing diagnostic trouble codes (DTCs)
Diagnostic trouble codes (DTCs) can only be erased once all the diagnostic trouble codes (DTCs) have been read off at least once.

Reading off input and output signals
This function can be used to continuously read off the values and status of the control module's input and output signals.
The key must not be in the ignition when reading off the status of the door mirror lamp.
Lock cable M1, status, is active while locking the central locking
Lock cable M2, status, is active while unlocking the central locking and / or deadlocks
Lock cable M3, status, is active while locking the deadlocks
The following parameters can be read off:
- The status of the front left window up-control
- The status of the front left window down-control
- The status of the front left window auto-control
- The status of the front right window up-control
- The status of the front right window down-control
- The status of the front right window auto-control
- The status of the rear left window up-control
- The status of the rear left window down-control
- The status of the rear right window up-control
- The status of the rear right window down-control
- The status of the child safety button

Note! A diagnostic trouble code (DTC) is stored if the child safety button is activated for 10 seconds.

- The status of the selection of control for the left door mirror
- The status of the selection of control for the right door mirror
- The status of the upward control for the door mirror
- The status of the downward control for the door mirror
- The status of the control for the left door mirror
- The status of the control for the right door mirror
- The status of the up-motor for the power window
- The status of the down-motor for the power window
- Lock cable M1, status
- Lock cable M2, status
- Lock cable M3, status
- The status of the door open warning lamp (does not apply to all cars)
- Defroster, status
- Door mirror lamp, status
- Outside temperature, value

Note! The outside temperature can only be read off from the control module on the right-hand side of the car.

- Power supply, value
- Signal supply, value
- Door mirror position X axis, value (does not apply to all cars)
- Door mirror position Y axis, value (does not apply to all cars).

Activating components and functions
Use this option to activate components / functions in the driver's door module.
The following components / parameters can be activated in alternative ways:
- The up / down control for the front left window
- The up / down control for the front right window
- The up / down control for the rear windows
- The selection of the left or right door mirror control
- Upwards / downwards / left / right door mirror control
- Power window motor, up / down
- Lock cable M1
- Lock cable M2
- Door mirror motor
- Defroster
- Door mirror lamp
- Door open warning lamp (does not apply to all cars).

Reading off and programming data
With this option it is possible to read programmed data and to program in data.

Note! If the control module has been replaced, the position of the windows must be initiated using a diagnostic function. A window must be in its uppermost position before it can be initiated.

No customer related programming is available in the control module.

Reading off the control module identification
The diagnostic tool identifies control modules by reading off a number of codes from the control module memory.
The codes contain information about the control module:
- hardware P/N (control module without software)
- hardware serial number (control module without software)
- software P/N
- diagnostic software P/N.