Deutz-Fahr 760202 – ACM (Exhaust Aftertreatment Control Module) / A60 Module: ACM: Power supply of control unit A60 defective

Issue description

Hardware failure within the internal power management circuit of the module. The vehicle's wiring harness supplies the correct operating voltage (typically 26–28V for a 24V system) to the module, but the module's internal circuitry incorrectly registers a severe undervoltage (e.g., ~18V). This internal voltage drop causes the AdBlue/SCR system to deactivate, triggers warning lights, and can lead to a complete loss of CAN-bus communication with the module.

Applies to these machines

Agrotron
Serie 6
Serie 9
C5205
C5305
C6205
C7205
C7206
C9205
C9206
C9305
C9306

Check the cause

Measure external voltage at the A60 (ACM) wiring harness connector to verify the module is receiving a healthy 26–28V from the vehicle while running.
Inspect the specific fuses and power relays dedicated to the exhaust aftertreatment system to ensure there is no intermittent voltage drop under load.
Connect a diagnostic tool and view the 'ACM Supply Voltage' PID. If the multimeter reads 26–28V at the connector but the diagnostic tool reads ~18V (or if the module drops offline entirely), the internal power management circuit has failed.

Repair steps

Power Down
Turn off the machine and disconnect the negative battery terminal to prevent electrical spikes.
Locate the ACM
Locate the A60 Exhaust Aftertreatment Control Module (typically mounted near the aftertreatment assembly or on the engine block, depending on the machine).
Remove the Module
Carefully disconnect the multi-pin wiring harness connectors from the ACM. Unbolt the module from its mounting bracket.
Repair or Replace
Option A: Send the unit to a specialized commercial vehicle ECU repair service (e.g., Revonik, Schaknat Elektronik), which can rebuild the internal power supply circuit. Option B: Install a new or remanufactured ACM 2.1.
Reinstallation
Mount the repaired/new ACM, reconnect the wiring harnesses, and reconnect the battery.
Software Calibration
If a brand-new module is installed, it will need to be flashed/parameterized with Deutz-Fahr diagnostic software to match the specific machine's emissions profile.
Clear Codes
Clear the 760202 fault code and run the machine to verify that the AdBlue system initializes properly and the warning lights remain off.

Parts you might need

(8)

Continental ACM 2.1 (Exhaust Aftertreatment Control Module / Steuergerät Abgasnachbehandlung)
A 000 446 27 54
Always verify the exact hardware number printed on the sticker of the original Continental ACM 2.1 before ordering a replacement, as software mapping varies heavily between tractor and combine models.
A 000 446 27 54

Continental ACM 2.1 (Exhaust Aftertreatment Control Module / Steuergerät Abgasnachbehandlung)
A 000 446 31 54
Always verify the exact hardware number printed on the sticker of the original Continental ACM 2.1 before ordering a replacement, as software mapping varies heavily between tractor and combine models.
A 000 446 31 54

Continental ACM 2.1 (Exhaust Aftertreatment Control Module / Steuergerät Abgasnachbehandlung)
A 000 446 34 54
Always verify the exact hardware number printed on the sticker of the original Continental ACM 2.1 before ordering a replacement, as software mapping varies heavily between tractor and combine models.
A 000 446 34 54

Continental ACM 2.1 (Exhaust Aftertreatment Control Module / Steuergerät Abgasnachbehandlung)
A 000 446 40 54
Always verify the exact hardware number printed on the sticker of the original Continental ACM 2.1 before ordering a replacement, as software mapping varies heavily between tractor and combine models.
A 000 446 40 54

Continental ACM 2.1 (Exhaust Aftertreatment Control Module / Steuergerät Abgasnachbehandlung)
A 000 446 48 54
Always verify the exact hardware number printed on the sticker of the original Continental ACM 2.1 before ordering a replacement, as software mapping varies heavily between tractor and combine models.
A 000 446 48 54

Continental ACM 2.1 (Exhaust Aftertreatment Control Module / Steuergerät Abgasnachbehandlung)
A 000 446 58 54
Always verify the exact hardware number printed on the sticker of the original Continental ACM 2.1 before ordering a replacement, as software mapping varies heavily between tractor and combine models.
A 000 446 58 54

Continental ACM 2.1 (Exhaust Aftertreatment Control Module / Steuergerät Abgasnachbehandlung)
A 001 446 49 35
Always verify the exact hardware number printed on the sticker of the original Continental ACM 2.1 before ordering a replacement, as software mapping varies heavily between tractor and combine models.
A 001 446 49 35

Continental ACM 2.1 (Exhaust Aftertreatment Control Module / Steuergerät Abgasnachbehandlung)
A 470 446 00 54
Always verify the exact hardware number printed on the sticker of the original Continental ACM 2.1 before ordering a replacement, as software mapping varies heavily between tractor and combine models.
A 470 446 00 54

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