Service manual

90-898303
4-22
SENSOR PRESSURE TEST
IMPORTANT: When testing TPS voltage, do not move the drive
mechanism (rotor/wiper).
1. Connect the DDT and rotate the key to the ON position.
2. Set the DDT to read TPS voltage; expand the screen to show
Now/Min/Max.
NOTE: Test accuracy is improved when the TPS is at its lowest voltage
reading (engine at idle).
3. Clear the minimum/maximum values on the DDT.
4. Watch the DDT readings while pressing below the electrical connection
point on the TPS cover.
5. The voltage reading should change:
• Less than a couple of digits (i.e. 1.90 v to 1.92 v)
• Less than 10 millivolts (i.e. 0.293 v to 0.285 v)
NOTE: Version 5.0 cartridges give 3 decimal point (millivolts) accuracy if
below 1 volt. If the TPS fails either test, replace the sensor.
Notes
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