lemon-mirror:
Home >> Mazda >> 1993 >> RX-7 Automatic >> Repair and Diagnosis >> Engine Performance >> Engine Controls - Pin Voltage Charts >> Introduction

Engine Controls - Pin Voltage Charts: Introduction

Pin voltage charts are supplied to reduce diagnostic time. Checking pin voltages at the Engine Control Unit (ECU) or Powertrain Control Module (PCM) determines whether ECU or PCM is receiving and transmitting proper voltage signals. Charts may also help determine if ECU or PCM harness is shorted or opened.

NOTE: Unless stated otherwise in testing procedures, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance. Voltage readings may vary slightly due to battery condition or charging rate.
NOTE: For complete pin voltage information, see appropriate trouble code information in appropriate G - TESTS W/ CODES article.
Fig 1: ECU Pin Voltage Chart (1 Of 7)
G93A79988Courtesy of MAZDA MOTORS CORP.
Fig 2: ECU Pin Voltage Chart (2 Of 7)
G93B79989Courtesy of MAZDA MOTORS CORP.
Fig 3: ECU Pin Voltage Chart (3 Of 7)
G93E79990Courtesy of MAZDA MOTORS CORP.
Fig 4: ECU Pin Voltage Chart (4 Of 7)
G93F79991Courtesy of MAZDA MOTORS CORP.
Fig 5: ECU Pin Voltage Chart (5 Of 7)
G93G79992Courtesy of MAZDA MOTORS CORP.
Fig 6: ECU Pin Voltage Chart (6 Of 7)
G93H79993Courtesy of MAZDA MOTORS CORP.
Fig 7: ECU Pin Voltage Chart (7 Of 7)
G93I79994Courtesy of MAZDA MOTORS CORP.
Fig 8: Identifying Diagnosis Connector Terminals
G93D79999Courtesy of MAZDA MOTORS CORP.
· About lemon-mirror