Component Tests and General Diagnostics

LINKAGE

NOTE:
- If the system has false bounce back, stops in mid travel, is noisy or will not stow completely, extend the running board and check to see if any foreign material is caught in the track guide and pivot areas. If debris is found, clean the running board track guides and pivot areas with a high-pressure washer. If the system operates correctly after cleaning, refer the customer to the owners guide for correct cleaning instructions.
- If the retractable running board cannot be extended, extend the running board by hand. It may require as much as 68 Kg (150 lbs) of force to slip the running board motor clutch.

1. Extend the retractable running board.
2. Remove the retractable running board motor.
3. Insert a 1/2-inch bit with a torque wrench into the worm gear. The system at ambient temperature should move between 0.5 to 4.0 Nm (4 to 35 lb-in).
4. If the torque required to move the system is less than 4 Nm (35 lb-in), install the retractable running board motor with the limit switches disconnected. Open and close one of the vehicle doors. If the retractable running board deploys-retracts-deploys or retracts-deploys-retracts with out stopping in between, install a new retractable running board sensor wiring harness. If the retractable running board does not, install a new retractable running board motor.
5. If the torque required to move the system is greater than 4 Nm (35 lb-in), the system has a binding condition.
6. Remove the 2 spool locks from the guide tracks and use the torque wrench to determine the torque required to move the system. If the torque required is less than 4 Nm (35 lb-in), install new spool locks.
7. If the torque is greater than 4 Nm (35 lb-in), install a new retractable running board assembly.