Prizm L4-1600cc 1.6L DOHC VIN 6 (1990)
Cruise Control Servo: Testing and Inspection
Actuator
Fig. 19 Checking Control Cable Freeplay
1.
Ensure control cable freeplay is less than .39 inch, Fig. 19, adjusting as necessary.
2.
Using a digital multimeter, J43029-A, or equivalent, measure resistance values between terminals 2 and 3, then measure resistance between
terminals 1 and 3.
3.
If resistance is not approximately 30 ohms between terminals 2 and 3, and approximately 68 ohms between terminals 1 and 3, replace actuator.
4.
Disconnect actuator electrical connector.
5.
Connect positive lead from battery to terminals 1 and 2 and the negative lead to terminal 3.
6.
Using a hand held vacuum pump, J23738-A, or equivalent, slowly apply vacuum from 0 to 11.8 inches Hg, ensuring control cable can be pulled
smoothly.
7.
Disconnect terminal 1 and 2, then check control cable returns to original position, and vacuum returns to 0 inches Hg.
8.
If results are not as indicated, replace actuator.
