Throttle Position Sensor
2019 Jeep Wrangler · 3.6L V6
Sensor Type
hall-effect
Waveform Type
dc-variable
Location
Integrated into electronic throttle body assembly on intake manifold, passenger side of engine
Pins
6-pin connector
Timebase
500ms/div
Voltage Scale
1V/div
Trigger
Single sweep or auto
Wiring
Violet/White and Light Green/Red (dual TPS signals), Orange (5V reference for TPS1), Red/White (5V reference for TPS2), Black/Light Blue grounds (2 wires)
Expected Voltage Range
At Idle
0.4V to 0.9V
At Higher RPM
4.2V to 4.7V
Expected Pattern
Dual redundant analog voltage outputs - TPS1 increases from ~0.5V to ~4.5V with throttle opening, TPS2 operates inversely from ~4.5V to ~0.5V for fault detection
Known-Good Waveform
Dual voltage signals that move smoothly and inversely to each other during throttle sweep. At closed throttle, TPS1 reads 0.5-0.9V while TPS2 reads 4.1-4.5V. At wide open throttle, TPS1 reads 4.2-4.6V while TPS2 reads 0.5-0.9V. Combined voltage should equal approximately 5V at all throttle positions. No glitches, steps, or flat spots during smooth throttle application.
Common Failure Patterns
Voltage spikes, flat spots, or non-linear progression during throttle sweep on either TPS channel
Cause: Carbon buildup on throttle blade causing binding, contaminated sensor tracks, or electronic throttle body motor failure
Diagnostic Tips
The 3.6L uses a non-serviceable electronic throttle body - no cleaning or adjustment is recommended by Chrysler. Perform throttle relearn procedure after battery disconnect or throttle body replacement. Monitor both TPS channels simultaneously and verify their sum equals 5V ±0.2V throughout entire range.
Related Diagnostic Trouble Codes
P0120P0121P0122P0123P0124
Always confirm waveform data with your vehicle's OEM service manual before diagnosing.
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