CLAAS 76A7h: REH (A58) Lifting Module Does Not Receive Engine Running Information

The REH (A58) lifting module is not receiving engine running information on the Powertrain CAN bus, or the information received is incorrect. Additionally, the alternator's D+ load signal is missing, resulting in the lifting function being inactive.

1. 1

   Powertrain CAN bus communication with the REH (A58) lifting module

2. 2

   Alternator's D+ load signal connection and functionality

3. 3

   Powertrain CAN bus wiring and connectors

4. 4

   REH (A58) lifting module power supply and grounding

1. 1

   Verify Powertrain CAN bus communication

   Check the communication between the REH (A58) lifting module and the Powertrain CAN bus using diagnostic tools.

2. 2

   Inspect alternator's D+ load signal

   Check the alternator's D+ load signal for continuity and proper connection to the REH (A58) lifting module.

3. 3

   Check Powertrain CAN bus wiring

   Inspect the wiring and connectors of the Powertrain CAN bus for damage, corrosion, or loose connections.

4. 4

   Test REH (A58) lifting module power supply

   Ensure the REH (A58) lifting module is receiving proper power and grounding.