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2000 Jeep Grand Cherokee Laredo 4.0L Poor Idle Quality
Posted to Chrysler Driveability on 2/9/2009 5 Replies

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.

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Message Closed w/FIX

car Vehicle Data

2000 Jeep Grand Cherokee Laredo

VIN 1J4GW48S6Y
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways

Trouble Codes

P0123Throttle Position Sensor Circuit High Voltage
P1596Speed Control Switch Always High
Message Closed w/FIX

car Vehicle Data

2000 Jeep Grand Cherokee Laredo

VIN 1J4GW48S6Y
Engine4.0 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality
OccursAlways

Trouble Codes

P0123Throttle Position Sensor Circuit High Voltage
P1596Speed Control Switch Always High