Component Testing

Seat Adjuster Switch Test

1. Ignition/Vehicle OFF, disconnect the connector at the S64 Seat Adjuster Switch.
2. Test for infinite resistance between the B+ terminal and each control terminal with the switch in the open position.
   • If less than infinite resistance 

     Replace the S64 Seat Adjuster Switch.

   • Go to next step: If infinite resistance 
3. Test for less than 2 Ω between the B+ terminal and each control terminal with the appropriate switch in the closed position.
   • If 2 Ω or greater 

     Replace the S64 Seat Adjuster Switch.

   • Go to next step: If less than 2 Ω 
4. Test for less than 2 Ω between the ground terminal and each control terminal with the switch in the open position.
   • If 2 Ω or greater 

     Replace the S64 Seat Adjuster Switch.

   • Go to next step: If less than 2 Ω 
5. All OK.

Seat Motor

1. Ignition/Vehicle OFF, disconnect the connector at the appropriate seat actuator listed below:
   • M50 Front Seat Tilt Adjuster Actuator
   • M51 Front Seat Adjuster Actuator
   • M55 Front Seat Vertical Adjuster Actuator
   • M56 Front Seat Recliner Actuator
NOTE:

When performing the following tests, make sure that the seat is not already in the position the test is attempting to produce.

2. Install a 30 A fused jumper wire between control terminal 1 and 12 V.
3. Momentarily install a jumper wire between control terminal 3 and ground. The seat actuator should momentarily perform the appropriate FORWARD/ REARWARD/ UP/ DOWN function.
   • If the actuator does not perform the FORWARD/ REARWARD/ UP/ DOWN function 

     Replace the actuator.

   • Go to next step: If the actuator performs the FORWARD/ REARWARD/ UP/ DOWN function 
4. Reverse the jumper wires; the actuator should perform FORWARD/ REARWARD/ UP/ DOWN function.
   • If the actuator does not perform the FORWARD/ REARWARD/ UP/ DOWN function 

     Replace the actuator.

   • Go to next step: If the actuator performs the FORWARD/ REARWARD/ UP/ DOWN function 
5. All OK.