Powertrain Control Module
- Locate Electronic Control Unit (ECU) or Powertrain Control Module (PCME). See ECU/PCME LOCATION table. Connect Engine Signal Monitor (49-9200-162) to ECU/PCME. See Fig 1
. Check voltage at each terminal of ECU/PCME. If input and output component voltage readings are not as specified, check faulty component. See PIN VOLTAGE CHARTS
article, appropriate G - TESTS W/ CODES article below, and testing for appropriate component in this article.
- TESTS W/CODES - 4-CYL (for MX-3 1.6L)
- TESTS W/CODES - V6 (for MX-3 1.8L)
- TESTS W/CODES (for Protege)
- TESTS W/CODES (for 323)
- If input and output component voltages are as specified and ECU/PCME voltage is incorrect, replace ECU/PCME.
CAUTION:
DO NOT apply voltage to terminals "A" and "B" of engine signal monitor. See Fig 1
.
ECU/PCME LOCATION
| Application | Location |
|---|---|
| MX-3, Protege & 323 | Behind Center Console |