Section 3 (Engine Controls - Pin Voltage Charts): Introduction

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1999 Jaguar XK8, 1999 Jaguar XJR, 1999 Jaguar XJ8, 1998 Jaguar XK8, and 1998 Jaguar XJR. However, it is still accessible from the selected car via links, so may be relevant.

Pin voltage charts are supplied to reduce diagnostic time. Checking pin voltages at the Engine Control Module (ECM) or Powertrain Control Module (PCM) determines whether it is receiving and transmitting proper voltage signals. Charts may also help determine if ECM or PCM harness is open or shorted. For terminal identification, see Fig 1, Fig 2 or Fig 3 .

Fig 1: Identifying PCM Connector Terminals - S-Type

Courtesy of JAGUAR CARS, INC.

Fig 2: Identifying ECM Connector Terminals - 1998-99 XJR, 1998 XJ8 & XK8

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Fig 3: Identifying ECM Connector Terminals 1999 XJ8 & XK8

Courtesy of JAGUAR CARS, INC.