Problem; Monitoring System Malfunction - Suzuki Grand Vitara XL-7 Service Manual

6-1-16 ENGINE DIAGNOSIS (RHZ ENGINE WITH TRIPLE-CONNECTOR ECM)
DTC P0121 (DTC P0120) THROTTLE POSITION CIRCUIT RANGE/PERFORMANCE
DTC P0604 (P0120)
WIRING DIAGRAM
DTC CONFIRMATION PROCEDURE
1) Connect scan tool to DLC with ignition switch OFF.
2) Turn ON ignition switch and clear DTC, pending DTC and freeze frame data by using scan tool and run engine
at idle speed for 10 sec. or more.
3) Check DTC and pending DTC by using scan tool.

PROBLEM

THROTTLE POSITION SENSOR MONITORING SYSTEM
MALFUNCTION
1. Throttle position sensor
2. ECM
3. Brake lamp switch
4. "STOP" fuse (20 A)