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P0123 Diagnostic Trouble Code Discussion for February 2009

Throttle Position Sensor/APPS High


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Trouble Ticket Help Requests for DTC P0123
Help Request Posted
2000 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality VIN: 1J4GW48S6Y
P0123: Throttle Position Sensor Circuit High Voltage. It's a Jeep thing I just don't understand. This jeep has tps voltage over 4 volts as processed info but approx 1 volt @ pcm pin. I did unplug the clockspring but did not help. With clock spring plugged in and push on/off tps drop to 1 volt.
February 09, 2009
1997 Jeep Grand Cherokee Laredo 4.0L Cuts out VIN: 1J4GZ52SXV
P0123: Throttle Position Sensor Circuit High Voltage. ... starts, i checked fuel pressure, for the 1 to 2 seconds that it runs, it is at 40 psi. also the vehicle has between 1/4 tank to 1/2 tank of gas, but the gas gauge shows at empty and along with that the low fuel warning light is on. p0123 code was stored in...
February 11, 2009
2003 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Surge, Cuts out VIN: 1J4GW48S33
P0123: Throttle Position Sensor Circuit High Voltage. Thanks in advance for the help. So far I replaced the throttle positioning sensor and that cleared the eratic idle for a little bit. But the volts came back up to 0.57 and the eratic idle came back. I've searched everywhere looking for leaks and haven't came a...
February 19, 2009
2000 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality VIN: 1J4GW48S6Y
P0123: Throttle Position Sensor Circuit High Voltage. It's a Jeep thing I just don't understand. This jeep has tps voltage over 4 volts as processed info but approx 1 volt @ pcm pin. I did unplug the clockspring but did not help. With clock spring plugged in and push on/off tps drop to 1 volt.
February 09, 2009
1997 Jeep Grand Cherokee Laredo 4.0L Cuts out VIN: 1J4GZ52SXV
P0123: Throttle Position Sensor Circuit High Voltage. ... starts, i checked fuel pressure, for the 1 to 2 seconds that it runs, it is at 40 psi. also the vehicle has between 1/4 tank to 1/2 tank of gas, but the gas gauge shows at empty and along with that the low fuel warning light is on. p0123 code was stored in...
February 11, 2009
2003 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality, Surge, Cuts out VIN: 1J4GW48S33
P0123: Throttle Position Sensor Circuit High Voltage. Thanks in advance for the help. So far I replaced the throttle positioning sensor and that cleared the eratic idle for a little bit. But the volts came back up to 0.57 and the eratic idle came back. I've searched everywhere looking for leaks and haven't came a...
February 19, 2009