Motor/Open Short: Notes
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
This display indicates the ATFP control module has detected one of the following pump motor current conditions:
- At least one phase current is more than 70 A.
- Commanded current is more than 5 A and actual current in any phase is less than 2 A.
- Ignition OFF, disconnect the ATFP control module connector X2.
- Using the Auxiliary Fluid Pump Specification table listed below, test the resistance between the X2 circuits of the pump connector as indicated.
- If any of the circuits are not within the specified range, replace the pump assembly and repeat the Circuit/System Verification.
- If all circuits test normal, replace the ATFP control module and repeat Circuit/System Verification.
Auxiliary Fluid Pump Specification
| Pump Connector X2 Terminal | Pump Connector X2 Terminal | Specified Range |
|---|---|---|
| A | E | < 0.5 OHMS |
| A | C | < 0.5 OHMS |
| C | E | < 0.5 OHMS |
| A | F | OL |
| C | F | OL |
| E | F | OL |
| A | Chassis Ground | OL |
| C | Chassis Ground | OL |
| E | Chassis Ground | OL |