800A PCM2 - gateway: Diagnosis/troubleshooting
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2004 Porsche Boxster, 2003 Porsche Boxster, 2002 Porsche Boxster, 2001 Porsche Boxster, and 2000 Porsche Boxster. However, it is still accessible from the selected car via links, so may be relevant.
DIAGNOSIS/TROUBLESHOOTING - 800A PCM2 - GATEWAY
| Work instruction |
Display OK |
If not OK |
| 1 |
Read out PCM2 fault memory |
- Connect the Porsche System Tester II 9588 to the diagnostic socket, start it and switch on the ignition.
- Select Boxster in the Vehicle type menu and confirm with the ">>" key.
- Select PCM in the control modules selection and confirm with the ">>" key.
- Select PCM2 GW in the PCM2 function selection and confirm with the ">>" key.
- Select Fault memory in the PCM2 GW function selection and confirm with the ">>" key.
- Read out fault memory.
- Erase fault memory.
- Remove ignition key and switch on ignition again.
- Read out fault memory.
- Extract ambient data, press the ">>" key.
|
-> End |
Fault code is still displayed
Step 2 |
| 2 |
Check CAN comfort (high) for open circuit |
- Switch off ignition.
- Pull off plug C on the PCM2 control module.
- Pull off plug B on the air-conditioning system control module.
- Pull off plug A on the instrument cluster control module.
- Measure specific resistance between pin 1 of plug C on the PCM2 control module and pin 1 of plug B on the air-conditioning control module.
|
< 0.5
Step 3 |
Repair open circuit in wiring harness
-> End |
| 3 |
Check CAN comfort (low) for open circuit |
- Measure specific resistance between pin 2 of plug C on the PCM2 control module and pin 2 of plug B on the air-conditioning control module.
|
< 5
Step 4 |
Repair open circuit in wiring harness
-> End |
| 4 |
|
-> End |