Challenger 35, Challenger 45 and Challenger 55 Agricultural Tractors Electronic Systems Caterpillar

Illustration 1	g00566920
(1) Chassis Control Module (CCM). (2) Alternator.

This fault code should be accompanied by the alternator charge indicator on the Electronic Monitoring Center (EMC) module. The warning indicator lamp will flash and a non-critical alarm will sound when an overcharge condition occurs. Refer to the Operation And Maintenance manual.

1. Replace the alternator. Start engine.

   Expected Result: The fault code is cleared.

   • YES, repair complete.

   • NO, go to Step 2.

2. Download latest control module software into all control modules.

   Expected Result: The fault code is active.

   • YES, go to Step 3.

   • NO, repair is complete. Calibrate transmission and three-point hitch.

3. Replace the Chassis Control Module (CCM).

   Expected Result: The fault code is active.

   • YES, install the original CCM and repeat this troubleshooting procedure.

   • NO, go to Step 4.

4. Install the original CCM.

   Expected Result: The fault code is active.

   • YES, original CCM was faulty. Replace original CCM with new CCM. If fault code is not active, repair is complete. Download latest control module software into all modules. Calibrate transmission and three-point hitch.

   • NO, this fault code may have been caused by faulty connectors. Keep the original on the tractor. Clean all terminals on the CCM and reconnect. If fault code is not active, repair is complete. Download latest control module software into all modules. Calibrate transmission and three-point hitch.