Join Now
International Automotive Technicians Network

P1121 Diagnostic Trouble Code Discussion for July 2007

Electronic Throttle Control Actuator Malfunction


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P1121
Help Request Posted
1999 Lexus GS300 3.0L Hesitation, MIL Lamp on VIN: JT8BD68S5X
P1121: ETCS Accelerator Pedal Position Sensor Performance. Hello Lexus folks: This GS300 has random power loss problems. It started when car refused to accel. from a stop (finally moved, but maxed out at 45 mph). Other times it loses power,down to about 45 mph (per customer) after driving about 20 minutes on Interstat...
July 13, 2007
1999 Lexus GS300 3.0L Hesitation, MIL Lamp on VIN: JT8BD68S5X
P1121: ETCS Accelerator Pedal Position Sensor Performance. Hello Lexus folks: This GS300 has random power loss problems. It started when car refused to accel. from a stop (finally moved, but maxed out at 45 mph). Other times it loses power,down to about 45 mph (per customer) after driving about 20 minutes on Interstat...
July 13, 2007