Front.fm Page viii Thursday, July 2, 1998 1:04 PM
INTRODUCTION CHANGES FROM THE EXISTING V-MAC II SERVICE MANUAL Mack Trucks, Inc. has made many improvements to this V-MAC II® Service Manual, with changes to both content and organization. This updated service manual now covers additional diagnostic blink codes including: r
1-8 — Starter input (high voltage)
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5-7 — Driver alarm output (low voltage)
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5-8 — Driver alarm output (high voltage)
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5-9 — Fault lamp output (low voltage)
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5-10 — Fault lamp output (high voltage)
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6-5 — Battery voltage (low voltage)
The DESCRIPTION AND OPERATION section provides an overview of the V-MAC II system, as well as a brief description of each component. The DIAGNOSTIC TOOLS AND PROCEDURES section outlines the diagnostic software and equipment that will be needed. It also provides troubleshooting procedures and service hints.
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The BLINK CODE DIAGNOSTICS section includes step-by-step procedures for troubleshooting diagnostic blink codes. The SYMPTOM RELATED DIAGNOSTICS section provides the troubleshooting procedures for situations where there is no diagnostic blink code. The REPAIR AND ADJUSTMENT PROCEDURES section guides the technician through connector repair, clutch switch adjustment, sensor adjustment and resetting low idle speed. The SPECIFICATIONS section provides engine parameters, while the SPECIAL TOOLS section includes a listing of the necessary tools. The SAE MESSAGE DESCRIPTIONS section provides a list of SAE/ATA serial line codes and corresponding descriptions.
