7B0264 COVER A. Caterpillar parts COVER
Alternative (cross code) number:
Illustration 1 g01209747
Feedback circuit connections for the rear axle diverter solenoid
The rear axle diverter solenoid is controlled by the rear axle relay based on input from the brake ECM. When the solenoid is energized by the relay, a feedback signal is sent to the ECM in order to indicate solenoid status. This diagnostic code is associated with the rear axle diverter solenoid feedback. The ECM expects to see the energize current at the feedback contact when the solenoid is energized and no current when the solenoid should not be energized. The FMI 06 means that the ECM has determined that the feedback current for the solenoid circuit is above what is expected.Some possible causes of this diagnostic code are listed:
The feedback circuit of the solenoid is shorted to ground.
The solenoid has failed.
The ECM has failed. This is unlikely. Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 1232 FMI 06 is active before performing this procedure.Test Step 1. CHECK THE SOLENOID