Operation CHARM: Car repair manuals for everyone.
Home >> Kia >> 2011 >> Optima L4-2.4L >> Repair and Diagnosis >> A L L Diagnostic Trouble Codes ( DTC ) >> Testing and Inspection >> B Code Charts >> B1603 >> Power Seat Module >> Component Inspection
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

Component Inspection





B1603 CAN Communication Bus Off

Inspection/Repair - Component Inspection

Component Inspection

Check internal errors of CAN communication units.
1. Connect GDS.
2. IG "ON" and engine "OFF".
3. Select "DTC Analysis" mode.
4. Disconnect CAN communication units one by one and monitor DTC to find the cause.








*CAN communication units : BCM (Body Control Module), CLU (Cluster), SMK (Smart Key), SJB (Smart Junction Box), PSM (Power Seat Module).
5. Is the code erased?





pro multis · About Operation CHARM