Check code 01

CHECK CODE 01 CHART

Check code 01		Buckle switch and passenger sensing system
STEP	INSPECTION CONDITION	DISPLAY	ACTION
1	Unfasten driver-side seat belt. (Buckle switch ON)		Go to the next step.
			Inspect the following parts: Buckle switch (driver-side) SAS control module Wiring harness (Buckle switch - driver-side - SAS control module)
			Using the DTC and PID of SAS control module, inspect the SAS control module, buckle switch and related wiring harnesses. If there is no malfunction, inspect for the continuity between SAS control module terminal 1X and instrument cluster terminal 2H (wiring harness-side). If there is a continuity, replace the instrument cluster.
2	Fasten driver-side seat belt. (Buckle switch OFF)		Go to the next step.
			Inspect the following parts: Buckle switch (driver-side) SAS control module Wiring harness (Buckle switch (driver-side)-SAS control module)
			Using the DTC and PID of SAS control module, inspect the SAS control module, buckle switch and related wiring harnesses. If there is no malfunction, inspect for the continuity between SAS control module terminal 1X and instrument cluster terminal 2H (wiring harness-side). If there is a continuity, replace the instrument cluster.
3	Seat one person in the passenger's seat, and unfasten passenger-side seat belt. (Seat weight sensor and buckle switch ON)		Go to the next step.
			Inspect the following parts: Buckle switch (passenger-side) Seat weight sensor control module Seat weight sensor SAS control module Wiring harness (Buckle switch (passenger-side)-SAS control module, seat weight sensor-Seat weight sense control module-SAS control module)
			Using the DTC and PID of SAS control module, inspect the SAS control module, buckle switch (driver-side, passenger-side), seat weight sensor control module, seat weight sensor and related wiring harnesses. If there is no malfunction, inspect for the continuity between SAS control module terminal 1X and instrument cluster terminal 2H (wiring harness-side). If there is a continuity, replace the instrument cluster.

4	Seat one person in the passenger's seat, and fasten passenger-side seat belt. (Seat weight sensor ON and buckle switch OFF) Seat no person in the passenger's seat, and unfasten passenger-side seat belt. (Seat weight sensor OFF and buckle switch ON) Seat no person in the passenger's seat, and fasten passenger-side seat belt. (Seat weight sensor and buckle switch OFF)		Input signal to the instrument cluster is normal.
			Inspect the following parts: Buckle switch (passenger-side) Seat weight sensor control module Seat weight sensor SAS control module Wiring harness (Buckle switch (passenger-side)-SAS control module, seat weight sensor-Seat weight sense control module-SAS control module)
			Using the DTC and PID of SAS control module, inspect the AS control module, buckle switch (driver-side, passenger-side), seat weight sensor control module, seat weight sensor and related wiring harnesses. If there is no malfunction, inspect for the continuity between SAS control module terminal 1X and instrument cluster terminal 2H (wiring harness-side). If there is a continuity, replace the instrument cluster.