Difference between revisions of "17978/P1570/005488"
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| − | == 17978/P1570 - Engine Start Blocked by Immobilizer == | + | == 17978/P1570/005488 - Engine Start Blocked by Immobilizer == |
==== Possible Symptoms ==== | ==== Possible Symptoms ==== | ||
| Line 15: | Line 15: | ||
==== Possible Solutions ==== | ==== Possible Solutions ==== | ||
| − | * Match Key(s)/Instrument Cluster/Engine Control Unit (ECU) | + | * Check for Fault Codes in Immobilizer itself (part of Instrument Cluster in many cars, but separate Immobilizer Control Module in some) |
| + | * Check Immobilizer Measuring Values (usually in Instrument Cluster OR Immobilizer Control Module) | ||
| + | * [[Diagnostic Procedures#Immobilizer Information|Match Key(s)/Instrument Cluster/Engine Control Unit (ECU)]] | ||
* Check Engine Control Unit (ECU) Power Supply (Relay) | * Check Engine Control Unit (ECU) Power Supply (Relay) | ||
==== Special Notes ==== | ==== Special Notes ==== | ||
| − | * If no other immobilizer related fault codes are stored and the immobilizer related meas. blocks are fine except ''Engine Start not allowed'', try cold-booting the car. Remove both battery cables from the battery. Short the battery cables together (away from the battery) for | + | * In case of Engine Starting Issues please make sure that you are really experience an Immobilizer related Problem! Even if the Immobilizer engages, the Engine will still start fine but cut out after 2-3 Seconds. If you are NOT experiencing this behavior (e.g. Engine doesn't start at all) your Problem is very likely NOT Immobilizer related. |
| + | * May be stored in Combination with [[01176|01176 - Key: Signal too Low]] in Immobilizer Control Module. | ||
| + | * If no other immobilizer related fault codes are stored and the [http://www.ross-tech.com/vag-com/cars/Immo3-measuring-blocks.html immobilizer related meas. blocks] are fine except ''Engine Start not allowed'', on rare occasions it helps to try cold-booting the car. Remove both battery cables from the battery. Short the battery cables together (away from the battery) for about 15 seconds. Reconnect the battery. ([http://forums.tdiclub.com/showthread.php?t=105291 Example]) | ||
| + | * Low battery voltage (including a faulty battery) may cause Immobilizer system malfunctions and testing should be done only with a known good battery installed. | ||
[[Category:Fault Codes]] | [[Category:Fault Codes]] | ||
Latest revision as of 16:37, 25 September 2014
17978/P1570/005488 - Engine Start Blocked by Immobilizer
Possible Symptoms
- Engine starting but stalling immediately
Possible Causes
- Key(s) not matched
- Instrument Cluster not matched
- Engine Control Unit (ECU) not matched
- Engine Control Unit (ECU) Power Supply faulty
Possible Solutions
- Check for Fault Codes in Immobilizer itself (part of Instrument Cluster in many cars, but separate Immobilizer Control Module in some)
- Check Immobilizer Measuring Values (usually in Instrument Cluster OR Immobilizer Control Module)
- Match Key(s)/Instrument Cluster/Engine Control Unit (ECU)
- Check Engine Control Unit (ECU) Power Supply (Relay)
Special Notes
- In case of Engine Starting Issues please make sure that you are really experience an Immobilizer related Problem! Even if the Immobilizer engages, the Engine will still start fine but cut out after 2-3 Seconds. If you are NOT experiencing this behavior (e.g. Engine doesn't start at all) your Problem is very likely NOT Immobilizer related.
- May be stored in Combination with 01176 - Key: Signal too Low in Immobilizer Control Module.
- If no other immobilizer related fault codes are stored and the immobilizer related meas. blocks are fine except Engine Start not allowed, on rare occasions it helps to try cold-booting the car. Remove both battery cables from the battery. Short the battery cables together (away from the battery) for about 15 seconds. Reconnect the battery. (Example)
- Low battery voltage (including a faulty battery) may cause Immobilizer system malfunctions and testing should be done only with a known good battery installed.