Servo Test
- Turn ignition off. Disconnect servo connector and remove servo assembly. Servo has terminal pins that are labeled by letters "A" through "E".
- With an ohmmeter, probe terminal pins "D" to "B". Resistance should be 15-25 ohms. If resistance is higher or lower, replace servo. If resistance is 15-25 ohms, go to next step.
- Probe terminal pins "A" to "C". Resistance should be 30-55 ohms. If resistance is higher or lower, replace servo. If resistance is 30-55 ohms go to next step.
- Probe terminal pins "E" to "C". Resistance should be 30-55 ohms. If resistance is higher or lower, replace servo. If resistance is 30-55 ohms, go to SERVO VACUUM TEST procedure.