Re: Testigo inmovilizados parpadea y no arranca
Publicado: 01 Ago 2021 15:49
01128 - Immobilizer Pickup Coil (D2)
Possible Symptoms
Immobilizer Warning Light flashing
Immobilizer active (Engine shuts OFF after 2-3 Seconds)
Possible Causes
Wiring and/or Connector(s) from/to Immobilizer Pickup Coil (D2) faulty
Immobilizer Pickup Coil (D2) faulty
Immobilzier Control Module faulty
Possible Solutions
Check Wiring and/or Connector(s) from/to Immobilizer Pickup Coil (D2)
Check/Replace Immobilizer Pickup Coil (D2)
Check Measuring Value Blocks (MVB)
Special Notes
Pickup Coils for Immobilizer 2 and 3 Systems should read ~ 18 to 24 Ω
01176 - Key: Signal too Low
Possible Symptoms
Malfunction Indicator Light (MIL) ON
Possible Causes
Immobilizer
Wiring and/or Connector(s) from/to Immobilizer Reader Coil faulty
Immobilizer Reader Coil faulty
Immobilizer Transponder in Key faulty OR incorrect Transponder in Key
Remote Control
Remote Control Battery low
Remote Control faulty OR incorrect Remote Control used
Possible Solutions
Immobilizer
Check Wiring and/or Connector(s) from/to Immobilizer Reader Coil
Check Key Immobilizer Transponder Status
See Measuring Value Blocks (MVB)
Check/Renew Immobilizer Key Matching
Check/Replace Key
Remote Control
Check/Replace Remote Control Battery
Check/Replace Remote Control
Special Notes
If found on a New Beetle, can be caused by the Insulation Displacement Crimp (IDC) terminals that are used for the reader coil at T32a/2 and T32a/17 (green connector) that result in poor contact. This can degrade the signal from the key.
This Fault Code can be stored in due to Remote Control or Immobilizer Problems. On most Models these systems are separate and should therefor also be diagnosed separately.
In case of Engine Starting Issues please make sure that you are really experiencing an Immobilizer related Problem! On most models using conventional keys, the Engine will still start but cut out after 1-3 Seconds if an Immobilizer related Problem is the cause. On models using Kessy Systems and Electronic Keys, most systems in the car won't power up at all if if an Immobilizer related Problem is the cause. If you are NOT experiencing this behavior (e.g. Instrument Cluster powers up, and engine cranks but doesn't fire at all or engine won't crank) this is likely NOT Immobilizer related.
When found in Audi A3 (8L), Audi A4 (8D), Audi A6 (4B) or Audi A8 (4D), check Wiring from Immobilizer Control Module to Immobilizer Reader Coil. A known issue would be the Length of the Wiring, an optimized Replacement Part may be available (8D0-972-275).
May be stored in Combination with 17978/P1570/005488 - Engine Start Blocked
17978 - 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.
Possible Symptoms
Immobilizer Warning Light flashing
Immobilizer active (Engine shuts OFF after 2-3 Seconds)
Possible Causes
Wiring and/or Connector(s) from/to Immobilizer Pickup Coil (D2) faulty
Immobilizer Pickup Coil (D2) faulty
Immobilzier Control Module faulty
Possible Solutions
Check Wiring and/or Connector(s) from/to Immobilizer Pickup Coil (D2)
Check/Replace Immobilizer Pickup Coil (D2)
Check Measuring Value Blocks (MVB)
Special Notes
Pickup Coils for Immobilizer 2 and 3 Systems should read ~ 18 to 24 Ω
01176 - Key: Signal too Low
Possible Symptoms
Malfunction Indicator Light (MIL) ON
Possible Causes
Immobilizer
Wiring and/or Connector(s) from/to Immobilizer Reader Coil faulty
Immobilizer Reader Coil faulty
Immobilizer Transponder in Key faulty OR incorrect Transponder in Key
Remote Control
Remote Control Battery low
Remote Control faulty OR incorrect Remote Control used
Possible Solutions
Immobilizer
Check Wiring and/or Connector(s) from/to Immobilizer Reader Coil
Check Key Immobilizer Transponder Status
See Measuring Value Blocks (MVB)
Check/Renew Immobilizer Key Matching
Check/Replace Key
Remote Control
Check/Replace Remote Control Battery
Check/Replace Remote Control
Special Notes
If found on a New Beetle, can be caused by the Insulation Displacement Crimp (IDC) terminals that are used for the reader coil at T32a/2 and T32a/17 (green connector) that result in poor contact. This can degrade the signal from the key.
This Fault Code can be stored in due to Remote Control or Immobilizer Problems. On most Models these systems are separate and should therefor also be diagnosed separately.
In case of Engine Starting Issues please make sure that you are really experiencing an Immobilizer related Problem! On most models using conventional keys, the Engine will still start but cut out after 1-3 Seconds if an Immobilizer related Problem is the cause. On models using Kessy Systems and Electronic Keys, most systems in the car won't power up at all if if an Immobilizer related Problem is the cause. If you are NOT experiencing this behavior (e.g. Instrument Cluster powers up, and engine cranks but doesn't fire at all or engine won't crank) this is likely NOT Immobilizer related.
When found in Audi A3 (8L), Audi A4 (8D), Audi A6 (4B) or Audi A8 (4D), check Wiring from Immobilizer Control Module to Immobilizer Reader Coil. A known issue would be the Length of the Wiring, an optimized Replacement Part may be available (8D0-972-275).
May be stored in Combination with 17978/P1570/005488 - Engine Start Blocked
17978 - 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.