Test 33, Check For IDM Open Circuit
With key off and ECA disconnected, disconnect EDIS module from EDIS module tee. Leave EDIS diagnostic cable connected to vehicle harness connector. Set DVOM to 200-ohm scale. Measure resistance between breakout box pin No. J41 (IDM E) and vehicle harness connector pin No. 4. See Figure and Fig 1.
If resistance is less than 5 ohms, replace ECA. Remove all test equipment, and reconnect all components. Clear Continuous Memory, and check for fault codes. If resistance is greater than 5 ohms, repair open circuit. Remove all test equipment, and reconnect all components. Clear Continuous Memory, and check for fault codes.