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__FORCETOC__ == 17978/P1570 - 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 ==== * Match Key(s)/Instrument Cluster/Engine Control Unit (ECU) * Check Engine Control Unit (ECU) Power Supply (Relay) ==== 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 aboyt 15 seconds. Reconnect the battery. ([http://forums.tdiclub.com/showthread.php?t=105291 Example]) [[Category:Fault Codes]]

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