Difference between revisions of "B10A9"
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== B10A9 - Control Circuit for A/C Compressor == | == B10A9 - Control Circuit for A/C Compressor == | ||
| + | |||
| + | === B10A911 - Control Circuit A/C Compressor: Short to Ground === | ||
| + | |||
| + | ==== Possible Symptoms ==== | ||
| + | |||
| + | * Climate Control not working (Not cooling) | ||
| + | |||
| + | ==== Possible Causes ==== | ||
| + | |||
| + | * Fuse(s) faulty | ||
| + | * Wiring and/or Connector(s) from/to Compressor Regulating Valve (N280) faulty | ||
| + | * Compressor Regulating Valve (N280) faulty | ||
| + | * Heating/Climate Control Module (J301) faulty | ||
| + | |||
| + | ==== Possible Solutions ==== | ||
| + | |||
| + | * Check Fuse(s) | ||
| + | * Check Wiring and/or Connector(s) from/to Compressor Regulating Valve (N280) | ||
| + | * Check/Replace Compressor Regulating Valve (N280) | ||
| + | ** Check Measuring Value Blocks (MVB) | ||
| + | ** Perform Output Test | ||
| + | * Check/Replace Heating/Climate Control Module (J301) | ||
| + | |||
| + | |||
| + | |||
| + | === B10A915 - Control Circuit A/C Compressor: Open or Short to Plus === | ||
| + | |||
| + | ==== Possible Symptoms ==== | ||
| + | |||
| + | * Climate Control not working (Not cooling) | ||
| + | |||
| + | ==== Possible Causes ==== | ||
| + | |||
| + | * Fuse(s) faulty | ||
| + | * Wiring and/or Connector(s) from/to Compressor Regulating Valve (N280) faulty | ||
| + | ** The wrong 2-wire electrical connector is plugged into the Regulating Valve (N280) | ||
| + | * Compressor Regulating Valve (N280) faulty | ||
| + | * Heating/Climate Control Module (J301) faulty | ||
| + | |||
| + | ==== Possible Solutions ==== | ||
| + | |||
| + | * Check Fuse(s) | ||
| + | * Check Wiring and/or Connector(s) from/to Compressor Regulating Valve (N280) | ||
| + | ** Verify the color of the wires matches the ones shown in the wiring diagram for N280 as per [https://forums.ross-tech.com/index.php?threads/633/ this thread] | ||
| + | * Check/Replace Compressor Regulating Valve (N280) | ||
| + | ** Check Measuring Value Blocks (MVB) | ||
| + | ** Perform Output Test | ||
| + | * Check/Replace Heating/Climate Control Module (J301) | ||
| + | |||
| + | |||
| + | |||
==== Special Notes ==== | ==== Special Notes ==== | ||
| + | |||
| + | * The Refrigerant Compressor may need to be replaced if the Compressor Regulating Valve (N280) is not available separately. | ||
* When found in the (4H) Audi A8 chassis 08-Auto HVAC control module, check the N280 AC compressor wiring to/from J519 per the factory level [[Official Factory Repair Information |Wiring Diagram]]. | * When found in the (4H) Audi A8 chassis 08-Auto HVAC control module, check the N280 AC compressor wiring to/from J519 per the factory level [[Official Factory Repair Information |Wiring Diagram]]. | ||
Latest revision as of 16:54, 5 May 2021
B10A9 - Control Circuit for A/C Compressor
B10A911 - Control Circuit A/C Compressor: Short to Ground
Possible Symptoms
- Climate Control not working (Not cooling)
Possible Causes
- Fuse(s) faulty
- Wiring and/or Connector(s) from/to Compressor Regulating Valve (N280) faulty
- Compressor Regulating Valve (N280) faulty
- Heating/Climate Control Module (J301) faulty
Possible Solutions
- Check Fuse(s)
- Check Wiring and/or Connector(s) from/to Compressor Regulating Valve (N280)
- Check/Replace Compressor Regulating Valve (N280)
- Check Measuring Value Blocks (MVB)
- Perform Output Test
- Check/Replace Heating/Climate Control Module (J301)
B10A915 - Control Circuit A/C Compressor: Open or Short to Plus
Possible Symptoms
- Climate Control not working (Not cooling)
Possible Causes
- Fuse(s) faulty
- Wiring and/or Connector(s) from/to Compressor Regulating Valve (N280) faulty
- The wrong 2-wire electrical connector is plugged into the Regulating Valve (N280)
- Compressor Regulating Valve (N280) faulty
- Heating/Climate Control Module (J301) faulty
Possible Solutions
- Check Fuse(s)
- Check Wiring and/or Connector(s) from/to Compressor Regulating Valve (N280)
- Verify the color of the wires matches the ones shown in the wiring diagram for N280 as per this thread
- Check/Replace Compressor Regulating Valve (N280)
- Check Measuring Value Blocks (MVB)
- Perform Output Test
- Check/Replace Heating/Climate Control Module (J301)
Special Notes
- The Refrigerant Compressor may need to be replaced if the Compressor Regulating Valve (N280) is not available separately.
- When found in the (4H) Audi A8 chassis 08-Auto HVAC control module, check the N280 AC compressor wiring to/from J519 per the factory level Wiring Diagram.
