Description
The main power window and door lock/unlock switch detects condition of the door key cylinder switch and transmits to BCM as the LOCK or UNLOCK signal.
Component Function Check
1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL
Check KEY CYL UN-SW, KEY CYL UN-SW in "DATA MONITOR" mode for "POWER DOOR LOCK SYSTEM" with CONSULT.

Diagnosis Procedure
1. CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

2. CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT


3. CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT
Check continuity between front door lock assembly LH connector and ground.

4. CHECK DOOR KEY CYLINDER SWITCH
Check door key cylinder switch
Component Inspection
COMPONENT INSPECTION
1. CHECK DOOR KEY CYLINDER SWITCH
Check front door lock assembly LH (key cylinder switch).

Special Repair Requirement
1. PERFORM INITIALIZATION PROCEDURE
Perform initialization procedure.
Key slot
Unlock sensorVacuum lines
Inspection
VISUAL INSPECTION
Check for improper assembly, damage and deterioration. Replace as necessary.
CHECK VALVE INSPECTION
Airtightness Inspection
Use a suitable tool to check the built-in check valve. Replace the
vacuum hose with the built-in check valve as an assembly if the vacuu ...
C1734 control unit
Description
An internal malfunction has been detected in the TPMS function of the BCM.
DTC Logic
NOTE: The Signal Tech II Tool (J-50190) can
be used to perform the following functions. Refer to the Signal Tech II User
Guide for additional information.
Activate and display TPMS trans ...
Power supply and ground circuit
BCM
BCM : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-67,
"Wiring Diagram".
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are
blown.
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect B ...