2010 Porsche Panamera Turbo (970) V8-4.8L Turbo A L L Diagnostic Trouble Codes ( DTC ): P Code Charts Page 589
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.
P1632
P1632
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.
P1637
P1637
Diagnosis information - Control unit DME (DFI)
Boost-pressure sensor (Pressure sensor forward Throttle valve valve) implausible
Diagnostic conditions
- Ignition on > 10 Second(s)
- then : Acceleration with wide-open throttle for as long as possible, immediately followed by an overrun phase lasting as long as possible
- none of the following faults stored: P1638, P1639, P0107, P0108, P2228, P2229, P1183, P1184, P1187, P1188, P1189, P1190
Possible fault causes
- Loose contact or corrosion on connectors or lines
- Ground supply defective
- Boost-pressure sensor Faulty
Fault effects
- Substitute value from model
P1638
P1638
Diagnosis information - Control unit DME (DFI)
