Pinpoint Tests (NAVAJO): Notes

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NOTE: Before testing Electronic Distributorless Ignition System (EDIS), ensure all tests in BASIC TESTING and TESTS W/CODES - NAVAJO articles have been performed.

NOTE: Use EDIS Diagnostic Cable (49-UN01-057) to diagnose system. Cable is equipped with additional circuits and components used in enhancing and modifying signals for testing purposes. If using an aftermarket test cable or DVOM, become familiar with system wiring diagram and system operation. See Figure and Figure .

Fig 1: EDIS Ignition System Wiring Diagram (Navajo)

Courtesy of MAZDA MOTORS CORP.

Fig 2: EDIS Diagnostic Cable Diagram (Navajo)

Courtesy of MAZDA MOTORS CORP.

CAUTION: Unless directed otherwise, DO NOT connect ECA to ECA Breakout Box (BOB) when performing EDIS diagnostics.