Allison B 300 User Manual

TS2470EN
Printed in the U.S.A. Copyright © 1998 General Motors Corp.
Troubleshooting
Manual
Division of General Motors Corporation
P.O. Box 894 Indianapolis, Indiana 46206-0894
May 1998
Revision 1, 199910
Allison Transmission
MD/HD/B Series Transmissions
WTEC II Controls
(Pre-TransID and TID 1)
MD 3060/MD 3066/MD 3560(P)(R)
MD 3070PT
HD 4060/HD 4560(P)(R)
B 300/B 400/ B 500(P)(R)

Allison B 300 Specifications

General

Brand	Allison
Model	B 300
Category	Microphone system
Language	English

Summary

IMPORTANT SAFETY NOTICE

WARNINGS, CAUTIONS, AND NOTES

Defines the meaning and usage of WARNING!, CAUTION:, and NOTE: headings to attract technician attention.

SECTION 1. GENERAL DESCRIPTION

1–1. TRANSMISSION

Describes the World Transmission Electronic Controls WTEC II system, its shift quality, and the number of ranges available for different models.

1–2. ELECTRONIC CONTROL UNIT (ECU)

Explains the ECU as the microcomputer controlling the system, receiving and processing various signals to manage transmission operations.

1–3. SHIFT SELECTOR

Details the pushbutton and lever shift selectors, their buttons, digital displays, and how they indicate operating conditions and diagnostic information.

SECTION 3. BASIC KNOWLEDGE

SECTION 4. WIRE CHECK PROCEDURES

4–1. CHECKING OPENS, SHORTS BETWEEN WIRES, AND SHORTS-TO-GROUND

Explains how to use a Volt-Ohmmeter and jumper wire set to test for open circuits and shorts between wires or to ground.

SECTION 5. OIL LEVEL SENSOR

5–1. ELECTRONIC FLUID LEVEL CHECK (SHIFT SELECTOR)

SECTION 6. DIAGNOSTIC CODES

6–1. DIAGNOSTIC CODE MEMORY

6–2. CODE READING AND CODE CLEARING

6–5. DIAGNOSTIC CODE LIST AND DESCRIPTION

SECTION 8. GENERAL TROUBLESHOOTING OF PERFORMANCE COMPLAINTS