Resistance Check
- Remove ECM from its bracket referring to ENGINE CONTROL MODULE (ECM) REMOVAL AND INSTALLATION
.CAUTION: Never touch terminals of ECM itself or connect voltmeter or ohmmeter (2).
- Connect special tool (A) to ECM connectors (1) securely.
Special Tool
(A): 09933-06520
NOTE: Do not connect the other connector of special tool to ECM. - Check resistance between each pair of terminals of special tool connectors as listed in the following table.CAUTION:
- Be sure to connect ohmmeter probe from wire harness side of coupler.
- Be sure to turn OFF ignition switch for this check.
- Resistance in the following table represents that measured when parts temperature is 20 °C (68 °F).
RESISTANCE CHART
| Terminals | Circuit | Standard resistance | Condition |
|---|---|---|---|
| E23-6 to E23-2/3 | Throttle actuator control relay | 160 - 240 Ω | - |
| C37-15 to E23-2/3 | Fuel injector No.1 | 10 - 14 Ω | - |
| C37-34 to E23-2/3 | Fuel injector No.2 | 10 - 14 Ω | - |
| C37-14 to E23-2/3 | Fuel injector No.3 | 10 - 14 Ω | - |
| C37-33 to E23-2/3 | Fuel injector No.4 | 10 - 14 Ω | - |
| C37-13 to E23-2/3 | Fuel injector No.5 | 10 - 14 Ω | - |
| C37-32 to E23-2/3 | Fuel injector No.6 | 10 - 14 Ω | - |
| C37-12 to E23-2/3 | EGR valve (stepping motor No.1 coil) | 20 - 24 Ω | - |
| C37-31 to E23-2/3 | EGR valve (stepping motor No.2 coil) | 20 - 24 Ω | - |
| C37-11 to E23-2/3 | EGR valve (stepping motor No.3 coil) | 20 - 24 Ω | - |
| C37-30 to E23-2/3 | EGR valve (stepping motor No.4 coil) | 20 - 24 Ω | - |
| C37-10 to E23-2/3 | EVAP canister purge valve | 25 - 30 Ω | - |
| C37-29 to E23-2/3 | IMT vacuum solenoid valve | 33 - 45 Ω | - |