Common faults with ECU

• temporarily no fuel pump control (error often occurs when engine’s warm)
• Cooling fan runs sporadically at full load without demand
• In case of different failure please contact us
• 1014 The control line to the ignition coil of cylinder 1 has short circuit to the ground. (P2300)
• 1030 The control line to the ignition coil of cylinder 2 is short-circuited to ground (P2303).
• 1022 The control line to the ignition coil of cylinder 3 is short-circuited to the ground (P2306
• 1018 The control line to the ignition coil of cylinder 4 is short-circuited to the ground (P2309).
• 1034 The control line to the ignition coil of cylinder 5 is short-circuited to the ground (P2312).
• 1026 The control line to the ignition coil of cylinder 6 is short-circuited to the ground (P2315).

Part numbers

• Mercedes Part number   A2721536979
• Bosch Part number      A0034461940