Pinout Values and Diagnostic Parameters
Inspection of ECM (PCM) and its CircuitsCAUTION:
ECM (PCM) cannot be checked by itself.
It is strictly prohibited to connect voltmeter or ohmmeter to ECM (PCM) with couplers disconnected from it.
ECM (PCM) and its circuits can be checked at ECM (PCM) wiring couplers by measuring voltage.
Voltage Check
1. Remove ECM (PCM) (2) from vehicle referring to "Engine Control Module (ECM) / Powertrain Control Module (PCM) Removal and Installation:".
2. Connect ECM (PCM) couplers (1) to ECM (PCM).
3. Check each terminal voltage with couplers connected by referring to "ECM (PCM) Voltage Values Table for Relation of A/C Control:
NOTE: For "Fig. A", "Fig. B" in the figure, refer to "ECM (PCM) Voltage Values Table for Relation of A/C Control:".