Throttle Switch Check

924 & 944 MODELS
Idle Switch Contact
1. With ignition Off, disconnect multiple pin plug from DME ECU.
2. Connect suitable ohmmeter across ECU connector terminals 2 and ground.
3. With throttle closed, resistance value should be 0 ohms.
4. With throttle opened, resistance value should be infinite. Switch over from throttle closed to throttle open should take place with a throttle gap of approximately 1°.

Full Load Contact
1. Connect ohmmeter across ECU connector terminals 3 and ground.
2. With throttle closed, resistance value should be infinite.
3. With throttle in wide open position, resistance value should be 0 ohms. Switch over from throttle closed to full load position, should take place just before full throttle opening.
4. If test results are not as specified, check resistance values directly at switch.