DTC B1837: Driving Position Memory Recall Timeout

NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A (see TROUBLESHOOTING - B-CAN SYSTEM DIAGNOSIS TEST MODE A ).

Clear the DTCs with the HDS.
Turn the ignition switch to LOCK (0), and then back to ON (II).
Use the front up-down switch to raise the front of the seat as high as it will go.
Use the rear up-down switch to raise the rear of the seat as high as it will go.
Use the slide switch to move the seat to the rear as far as it will go.
Use the recline switch to move the seat-back forward as far as it will go.
Memorize this seat position with the memory switches.
Use the seat switches to move the seat to its opposite limits (front and rear all the way down, seat fully forward, and seat-back fully reclined).
Recall the seat position with the driving position memory switch.
Wait for 3 minutes.
Check for DTCs with the HDS.
Are any DTCs indicated?

YES - Go to step 12.

NO - Intermittent failure. The driving position memory system is OK at this time. Check for loose or poor connections at the each DPMS connectors.
Check for DTCs with the HDS.
Are any DTCs except B1837 indicated?

YES - Go to the indicated DTC's troubleshooting.

NO - Go to step 13.
Clear the DTCs with the HDS and wait for 6 seconds.
Move the power seat (slide forward/backward, recline forward/backward, front up-down, rear up-down) motors one at a time, and check the operation time.
Does any motor fail to run smoothly?

YES - Go to the POWER SEAT MOTOR TEST . If the motor is OK, check the engagement of the motor gear.

NO - Go to the POWER SEAT CONTROL UNIT INPUT TEST .