DTC B1837

DTC B1837  : Memory position calling timeout

NOTE:  If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A .

DTC (Power Seat Control Unit)

1. Problem verification

   -1. Clear the DTCs with the HDS.

   -2. Turn the vehicle to the OFF (LOCK) mode and then the ON mode.

   -3. Move the power seat to the full front up and full rear up positions, then slide the seat all the way back and completely recline the seat-back backward with the power seat adjustment switch.

   -4. Set the seating position into memory by pressing either the driving position memory switch POSITION 1 or POSITION 2 button.

   -5. Using the power seat switches, move the seat away from the position just memorized.

   -6. Recall the memory position with the driving position memory switch.

   -7. Wait for 2 minutes.

   -8. Check for DTCs with the HDS.

   DTC Description	DTC
   B1837 Memory position calling timeout

   Is DTC B1837 indicated?

   YES 

   Go to step 2.

   NO 

   Intermittent failure, the system is OK at this time. Check for loose or poor connections.

2. DTC check

   -1. Check for DTCs with the HDS.

   DTC Description	DTC

   Any of DTC are indicated at the same time with DTC B1837?

   YES 

   Go to the indicated DTCs troubleshooting.

   NO 

   Go to step 3.

3. Motor operation check

   -1. Clear the DTCs with the HDS.

   -2. Wait for 6 seconds.

   -3. Move the motors (power seat slide forward/backward, recline forward/backward, front up-down, and rear up-down) shown one at a time, and check the operation time.

   Does any motor fail to run smoothly?

   Motor fails to run smoothly

   Go to the failed motor test .

   Motor is OK, but fails to run smoothly

   Check the engagement of the motor gear.

   NO 

   Do the teat of terminals for power seat control unit .