2010 Porsche Boxster S (987) F6-3.4L A L L Diagnostic Trouble Codes ( DTC ): U Code Charts Page 1
A L L Diagnostic Trouble Codes ( DTC ): U Code Charts
Communication, Transmission Control Unit
U0073
Diagnosis information - CAN
Communication, transmission control unit
NOTE: Internal function test completed.
Diagnostic conditions
The transmission control unit initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any
faults are stored. Transmission control unit wake-up through:
- Event-controlled CAN message
- Ignition on
Possible fault causes
- No power supply for transmission control unit
- Transmission control unit is incorrectly coded
- Short circuit or open circuit of CAN Drive
- Transmission control unit faulty (in most cases the cause is not the transmission control unit but incorrect coding.)
- DME control unit faulty
Fault effects
- No communication can take place via CAN Drive
- No other control units are able to communicate with the transmission control unit.
Gateway (CAN Drive) Control Module, Communication
U0073
Diagnosis information - CAN
Gateway (CAN drive) control module, communication
NOTE: Internal function test completed.
Diagnostic conditions
The gateway control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any
faults are stored.
Gateway control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- "Ignition on"
Possible fault causes
- No power supply for gateway control module
- Gateway control module is incorrectly coded
- Short circuit or open circuit in the CAN drive
- Gateway control module faulty (in most cases the cause is not the gateway control module but incorrect coding.)
Fault effects
- Communication via the CAN drive is no longer possible.
- No other control modules are able to communicate with the gateway control module.
Affected contacts on the gateway control module connector
Connector A:
- 1 power supply - terminal 30
- 6 CAN drive low
- 11 ground supply - terminal 31
- 13 wake-up
- 14 power supply - terminal 15
- 16 CAN drive high
U0100
U0100
2010 Porsche Boxster S (987) F6-3.4L A L L Diagnostic Trouble Codes ( DTC ): U Code Charts Page 2
Diagnosis information - CAN
DME control module, communication
NOTE: Internal function test completed.
Diagnostic conditions
The DME control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any
faults are stored. DME control module wake-up through:
- event-induced CAN message
- "Ignition on"
Possible fault causes
- No power supply for DME control module
- DME control module incorrectly coded
- Short circuit or open circuit in the CAN drive
- DME control module faulty (in most cases the cause is not the DME control module but incorrect coding.)
Fault effects
- Communication via the CAN drive is no longer possible.
- No other control modules are able to communicate with the DME control module.
Affected contacts on the DME control module connector
Connector A:
- 1 power supply - terminal 30
- 2 power supply - terminal 15
- 4 ground supply - terminal 31
- 5 ground supply - terminal 31
- 6 ground supply - terminal 31
Connector D:
- 36 CAN drive high
- 37 CAN drive low
U0101
U0101
Diagnosis information - CAN
Communication, transmission control unit
NOTE: Internal function test completed.
Diagnostic conditions
The transmission control unit initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any
faults are stored.
Transmission control unit wake-up through:
- Event-controlled CAN message
- Ignition on
Possible fault causes
- No power supply for transmission control unit
- Transmission control unit is incorrectly coded
- Short circuit or open circuit of CAN Drive
- Transmission control unit faulty (in most cases the cause is not the transmission control unit but incorrect coding.)
- DME control unit faulty
Fault effects
- No communication can take place via CAN Drive
- No other control units are able to communicate with the transmission control unit.
U0111
U0111
Diagnosis information - CAN
Vehicle electrical system control module, communication
2010 Porsche Boxster S (987) F6-3.4L A L L Diagnostic Trouble Codes ( DTC ): U Code Charts Page 3
NOTE: Internal function test completed.
Diagnostic conditions
The vehicle electrical system control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then
tested and any faults are stored. Vehicle electrical system control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- "Ignition on"
Possible fault causes
- Power supply for the vehicle electrical system control module is incorrect
- Vehicle electrical system control module is incorrectly coded
- Short circuit or open circuit in the CAN comfort
- Vehicle electrical system control module faulty (in most cases the cause is not the vehicle electrical system control module but incorrect
coding.)
Fault effects
- Communication via the CAN comfort is no longer possible.
- No other control modules are able to communicate with the vehicle electrical system control module.
Affected contacts on the vehicle electrical system control module connector
Connector A:
- 27 power supply - terminal 15
- 37 CAN comfort high
- 38 CAN comfort low
- 42 ground supply
Connector B:
- 3 power supply - terminal 30
- 21 wake-up
U0126
U0126
Diagnosis information - CAN
Steering wheel electronics (CAN drive) control module, communication
NOTE: Internal function test completed.
Diagnostic conditions
The steering wheel electronics control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are
then tested and any faults are stored. Steering wheel electronics control module wake-up through:
- event-induced CAN message
- "Ignition on"
Possible fault causes
- No power supply for steering wheel electronics control module
- Steering wheel electronics control module is incorrectly coded
- Short circuit or open circuit in the CAN drive
- Steering wheel electronics control module faulty (in most cases the cause is not the steering wheel electronics control module but incorrect
coding.)
Fault effects
- Communication via the CAN drive is no longer possible.
- No other control modules are able to communicate with the steering wheel electronics control module.
Affected contacts on the steering wheel electronics control module connector
Connector A:
- 1 ground supply - terminal 31
- 2 power supply - terminal 30
- 8 CAN drive low
- 9 CAN drive high
- 13 power supply - terminal 15
Communication, Transmission Control Unit
2010 Porsche Boxster S (987) F6-3.4L A L L Diagnostic Trouble Codes ( DTC ): U Code Charts Page 4
U0129
Diagnosis information - CAN
Communication, transmission control unit
NOTE: Internal function test completed.
Diagnostic conditions
The transmission control unit initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any
faults are stored.
Transmission control unit wake-up through:
- Event-controlled CAN message
- Ignition on
Possible fault causes
- No power supply for transmission control unit
- Transmission control unit is incorrectly coded
- Short circuit or open circuit of CAN Drive
- Transmission control unit faulty (in most cases the cause is not the transmission control unit but incorrect coding.)
- DME control unit faulty
Fault effects
- No communication can take place via CAN Drive
- No other control units are able to communicate with the transmission control unit.
PSM Control Module, Communication
U0129
Diagnosis information - CAN
PSM control module, communication
NOTE: Internal function test completed.
Diagnostic conditions
The PSM control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any
faults are stored. PSM control module wake-up through:
- event-induced CAN message
- "Ignition on"
Possible fault causes
- No power supply for PSM control module
- PSM control module incorrectly coded
- Short circuit or open circuit in the CAN drive
- PSM control module faulty (in most cases the cause is not the PSM control module but incorrect coding.)
Fault effects
- Communication via the CAN drive is no longer possible.
- No other control modules are able to communicate with the PSM control module.
Affected contacts on the PSM control module connector
Connector A:
- 4 ground supply - terminal 31
- 14 CAN drive low
- 28 power supply - terminal 15
- 35 CAN drive high
U0146
U0146
Diagnosis information - CAN
Gateway control unit communication
NOTE: Internal function text completed.
Diagnostic conditions
2010 Porsche Boxster S (987) F6-3.4L A L L Diagnostic Trouble Codes ( DTC ): U Code Charts Page 5
The Gateway control unit first tests internal function sequences upon wake-up. If they are OK, all diagnosable outputs are then tested and any faults
are stored. Gateway control unit wake-up takes place after:
- event-controlled CAN message
- [Ignition on]
Possible fault causes
- No power supply for Gateway control unit
- Incorrect coding of Gateway control unit
- Short circuit or open circuit of CAN Drive
- Gateway control unit faulty (in most cases the cause is incorrect coding and not the Gateway control unit.)
Fault effects
- No communication can take place via CAN Drive
- No other control units are able to communicate with the Gateway control unit
Affected contacts on the Gateway control unit connector
- 1 Power supply - term. 30
- 6 CAN Drive low
- 11 Power supply - term. 31
- 13 Wake-up
- 14 Ground supply - term. 15
- 16 CAN Drive high
U0155
U0155
Diagnosis information - CAN
Instrument cluster, communication
NOTE: Internal function test completed.
Diagnostic conditions
The instrument cluster initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults
are stored. Instrument cluster wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- "Ignition on"
Possible fault causes
- No power supply for instrument cluster
- Instrument cluster incorrectly coded
- Short circuit or open circuit in the CAN display
- Instrument cluster faulty (in most cases the cause is not the instrument cluster but incorrect coding.)
Fault effects
- Communication via the CAN display is no longer possible.
- No other control modules are able to communicate with the instrument cluster.
Affected contacts on the instrument cluster connector
Connector A:
- 1 ground supply - terminal 31
- 2 power supply - terminal 30
- 17 ground supply - terminal 31
- 18 power supply - terminal 30
- 30 wake-up
- 31 CAN display high
- 32 CAN display low
U0302
U0302
Diagnosis information - CAN
Fault entry in specified control module
NOTE: Internal function test completed.
2010 Porsche Boxster S (987) F6-3.4L A L L Diagnostic Trouble Codes ( DTC ): U Code Charts Page 6
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are
stored. Control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- key contact (terminal S)
- "Ignition on"
Possible fault causes
- Control module is incorrectly coded
- Periphery connected to specified control module is incorrect
- Control module faulty (in most cases the cause is not the control module but incorrect coding.)
Fault effects
- The specified control module sends only substitute values via the CAN.
- Other control modules detect these substitute values and set this fault code.
U0401
U0401
Diagnosis information - CAN
Fault entry in specified control module
NOTE: Internal function test completed.
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are
stored. Control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- key contact (terminal S)
- "Ignition on"
Possible fault causes
- Control module is incorrectly coded
- Periphery connected to specified control module is incorrect
- Control module faulty (in most cases the cause is not the control module but incorrect coding.)
Fault effects
- The specified control module sends only substitute values via the CAN.
- Other control modules detect these substitute values and set this fault code.
U0402
U0402
Diagnosis information - CAN
Fault entry in specified control module
NOTE: Internal function test completed.
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are
stored. Control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- key contact (terminal S)
- "Ignition on"
Possible fault causes
- Control module is incorrectly coded
- Periphery connected to specified control module is incorrect
- Control module faulty (in most cases the cause is not the control module but incorrect coding.)
Fault effects
- The specified control module sends only substitute values via the CAN.
2010 Porsche Boxster S (987) F6-3.4L A L L Diagnostic Trouble Codes ( DTC ): U Code Charts Page 7
- Other control modules detect these substitute values and set this fault code.
Control Unit Faulty
U0404
Diagnosis information - Selector lever
Control unit faulty
Diagnostic conditions
The control unit must be active in order to be able to test internal function sequences and diagnosable inputs/outputs.
In the event of a fault, check to ensure that the diagnosis object is faulty. Check whether the fault is permanently [present], erase the fault memory,
satisfy diagnosis conditions and read out the fault memory again.
- Ignition on
Fault setting condition(s)
- Internal hardware fault in CAN controller
- Internal sensor voltage implausible
- Internal key-lock signal implausible
Software Error
U0404
Diagnosis information - Selector lever
Software error
Diagnostic conditions
The control unit must be active in order to be able to test internal function sequences and diagnosable inputs/outputs.
In the event of a fault, check to ensure that the diagnosis object is faulty. Check whether the fault is permanently [present], erase the fault memory,
satisfy diagnosis conditions and read out the fault memory again.
- Ignition on
Fault setting condition(s)
- Internal software test reports an error
Diagnosis Information - Tiptronic
U0418
Diagnosis information - Tiptronic
Stop light switch
NOTE:
- The fault is detected when:
- the stop light switch was detected as actuated and
- the stop test switch was not yet detected as actuated.
- Stop light and stop test switches are located in stop light switch component.
Diagnostic conditions:
- Switch on ignition (if necessary, switch off first)
- Internal function test completed
Possible fault causes:
- Open circuit in signal wire from stop test switch
- Stop light switch faulty
Fault reaction:
- The R/P interlock is switched off.
Diagnosis Information - CAN
U0418
Diagnosis information - CAN
Fault entry in specified control module
2010 Porsche Boxster S (987) F6-3.4L A L L Diagnostic Trouble Codes ( DTC ): U Code Charts Page 8
NOTE: Internal function test completed.
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are
stored. Control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- key contact (terminal S)
- "Ignition on"
Possible fault causes
- Control module is incorrectly coded
- Periphery connected to specified control module is incorrect
- Control module faulty (in most cases the cause is not the control module but incorrect coding.)
Fault effects
- The specified control module sends only substitute values via the CAN.
- Other control modules detect these substitute values and set this fault code.
U0423
U0423
Diagnosis information - CAN
Fault entry in specified control module
NOTE: Internal function test completed.
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are
stored. Control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- key contact (terminal S)
- "Ignition on"
Possible fault causes
- Control module is incorrectly coded
- Periphery connected to specified control module is incorrect
- Control module faulty (in most cases the cause is not the control module but incorrect coding.)
Fault effects
- The specified control module sends only substitute values via the CAN.
- Other control modules detect these substitute values and set this fault code.
U0428
U0428
Diagnosis information - CAN
Fault entry in specified control module
NOTE: Internal function test completed.
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are
stored. Control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- key contact (terminal S)
- "Ignition on"
Possible fault causes
- Control module is incorrectly coded
- Periphery connected to specified control module is incorrect
- Control module faulty (in most cases the cause is not the control module but incorrect coding.)
2010 Porsche Boxster S (987) F6-3.4L A L L Diagnostic Trouble Codes ( DTC ): U Code Charts Page 9
Fault effects
- The specified control module sends only substitute values via the CAN.
- Other control modules detect these substitute values and set this fault code.
U1810
U1810
Diagnosis information - CAN
Fault entry in specified control module
NOTE: Internal function test completed.
Diagnostic conditions
The control module initially tests internal function sequences after wake-up. If they are OK, all diagnosable outputs are then tested and any faults are
stored. Control module wake-up through:
- event-induced CAN message
- wake-up signal via wake-up line
- key contact (terminal S)
- "Ignition on"
Possible fault causes
- Control module is incorrectly coded
- Periphery connected to specified control module is incorrect
- Control module faulty (in most cases the cause is not the control module but incorrect coding.)
Fault effects
- The specified control module sends only substitute values via the CAN.
- Other control modules detect these substitute values and set this fault code.