123

Possible Causes

• •Simultaneous voltage out-of-range faults for both TPS1 and TPS2
• •TPS1 voltage is greater than 4.8V or less than 0.2V AND TPS2 voltage is greater than 4.8V or less than 0.2V
• •Throttle Position Sensor (TPS) failure

Suggested Actions

1. 1Disconnect throttle from harness with Key Off, then with Key On, Engine Off, System Mode 'Stopped', check if DST displays TPS1 voltage < 0.20 VDC
2. 2Key ON, Engine Off, set System Mode to 'Stopped', enable 'DBW Test' mode and check if TPS1 voltage is low (< 1.00 VDC) at 0% TPS
3. 3Perform the On-Board (OBD) System Check
4. 4Replace the electronic throttle assembly (TPS is not serviceable)
5. 5Slowly depress FP (Foot Pedal) / FPP (Foot Pedal Position) sensor while observing TPS1 voltage (or use DBW page to type desired throttle opening % in the TPS Command box for stationary applications)
6. 6Troubleshoot according to TPS1 voltage out-of-range following DTC 122 and 123 procedures
7. 7Troubleshoot according to TPS2 voltage out-of-range following DTC 222 and 223 procedures

Related Power Solutions International, Inc. Fault Codes