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Electronic DISTRIBUTORLESS Ignition System (EDIS) Module

  1. Remove EDIS module connector. Measure resistance between module terminal No. 4 (IGND) and No. 9 (GND). See EDIS MODULE PIN IDENTIFICATION  . If resistance is less than 5 ohms go to Step 2. If resistance is more than 5 ohms, replace EDIS module and check for fault codes. See TESTS W/CODES article.
  2. With key off, check resistance between EDIS module harness connector terminal No. 4 and ECA connector pin No. 16 (IGN GND) of the ECA connector. See Figure . If resistance is less than 5 ohms, replace EDIS module and rerun test. If reading is more than 5 ohms, service open circuit, reconnect ECA and check for fault codes. See TESTS W/CODES article.
EDIS MODULE PIN IDENTIFICATION (1)

Pin No. Circuit
1 PIP
2 IDM
3 SAW
4 IGND
5 VRS -
6 VRS +
7 VRS Shield -
8 VBAT
9 GND
10 Coil 1
11 Coil 2
12 Coil 3
(1) When facing module from left to right.