Test Cps - Crankshaft Position Sensor
| Circuit | Breakout Box Pin | ECA Pin | |
|---|---|---|---|
| 1.8L | |||
| CPS | 56 | 2E | |
| VREF | 37, 57 | 1B | |
| 2.2L Turbo | |||
| CPS | 56, 12 | 3E | |
| CIDREF | 13 | 3F | |
1) Checking System Integrity Visually check all wiring, connectors and components for evidence of damage, shorting or looseness. If a fault is found, repair as necessary. If no fault is found, go to step 2).
2) Checking Resistance Of CPS Circuit Turn ignition off. Install breakout box, leaving ECA disconnected. Disconnect distributor connector. On 1.8L engines, measure resistance between ECA and distributor of the following circuits: CPS (White wire) VPWR, (White/Red wire) and GND (Black/Orange wire) terminals. On 2.2L turbo engines, measure resistance between ECA and distributor of the following circuits: CPS (Blue wire) and CIDREF (White wire) terminals. If resistance is more than 5 ohms, repair circuit between distributor to ECA. If resistance is less than 5 ohms, go to step 3).
3) Checking CPS Input Voltage On 1.8L engines, measure voltage between CPS and GND test pins while cranking engine. If voltage is 1.5 volts, replace ECA. If voltage is not as specified, go to step 3). On 2.2L turbo engines, measure voltage between CPS and CIDREF test pins while cranking engine. If voltage is 0.6-0.8 volt, replace ECA. If voltage is not as specified, perform TEST VPWR.
4) Checking Voltage To Distributor (1.8L) Disconnect distributor connector. Turn ignition on. Measure resistance between VPWR and ground. If voltage is less than 10 volts, go to CIRCUIT TEST VPWR. If voltage is more than 10 volts, measure resistance between VPWR and GND wire. If voltage is less than 10 volts, repair GND circuit wire. If voltage is more than 10 volts, replace CPS sensor.