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Charging System - Diagnosis|Page 1412 > < Electrical - Battery Testing/Equipment/Warranty Info.|Page 1407
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Technical Service Bulletin # 99-36-009

Date: 990701

Charging System - Diagnosis

Group: ENGINE ELECTRICAL

Number: 99-36-009

Date: JULY, 1999

Model: ALL

Subject
CHARGING SYSTEM DIAGNOSIS

TSB OUTLINE:

DIAGNOSTIC FLOW CHART 

I.

GENERAL INFORMATION 

(1)

INITIAL CHECKS:

A)

Check Battery Condition

i)

Visual Inspection 

ii)

Load Test 

iii)

Three Minute Charge Test 

B)

Check Generator Belt 

C)

Check Fuses & Wiring/Connector Condition

D)

Static Current Draw Check 

E)

Pre-Excitation Resistor (or relay) 

II.

CHARGING SYSTEM TESTS

(1)

CIRCUIT RESISTANCE TEST:

A)

Using DVOM 

B)

Using VAT-40 (or equivalent)

i)

Circuit Resistance Test 

ii)

Insulated Circuit Resistance Test 

iii)

Ground Circuit Resistance Test 

(2)

GENERATOR CURRENT OUTPUT TEST:

A)

Using DVOM and Ammeter 

B)

Using VAT-40 (or equivalent) 

(3)

VOLTAGE REGULATOR TEST:

A)

Using DVOM and Ammeter

B)

Using VAT-40 (or equivalent)

i)

Voltage Regulator Test 

Charging System - Diagnosis|Page 1412 > < Electrical - Battery Testing/Equipment/Warranty Info.|Page 1407