MQ Power DCA25USI4CAN troubleshooting: 12 fault codes and symptom-cause-remedy entries from the manufacturer's own service documentation.
MQ Power DCA25USI4CAN — full specs, parts & maintenance.
| Symptom | Cause | Remedy |
|---|---|---|
| No Brakes | Brake line broken or kinked? | Repair or replace. |
| Weak Brakes or Brakes Pull to One Side | Brake lining glazed? | Reburnish or replace. |
| Trailer overloaded? | Correct weight. | |
| Brake drums scored or grooved? | Machine or replace. | |
| Tire pressure correct? | Inflate all tires equally. | |
| Tires unmatched on the same axle? | Match tires. | |
| Locking Brakes | Brake components loose, bent or broken? | Replace components. |
| Brake drums out-of-round? | Replace. | |
| Noisy Brakes | System lubricated? | Lubricate. |
| Brake components correct? | Replace and correct. | |
| Dragging Brakes | Brake lining thickness incorrect or not adjusted correctly? | Install new shoes and linings. |
| Enough brake fluid or correct fluid? | Replace rubber parts fill with dot 4 fluid. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.
Documented causes: Brake line broken or kinked?. See the table for the matching fixes.
Documented causes: Brake lining glazed?. See the table for the matching fixes.
Documented causes: Brake components loose, bent or broken?. See the table for the matching fixes.