Number: 002/93
Section 4 - CHARGING SYSTEM DIAGNOSTIC PROCEDURES
1. Start the engine and confirm that the alternator warn
ing light is not illuminating.
NOTE: If the wamr.g light is illuminated, the self
diagnosis cceration is functioning. Check the
alternator and related harness' according to
section
"G r of
2. Fluctuate the engre
bearing or engine belt noise. If noise is present,
inspect for loose cr damaged belt or damage to the
alternator bearing.
NOTE: Perform the above inspection with the vehicle
headlights nominated.
3. Turn off the ignition and all accessories. Connect a
load tester (VAT-4D or equivalent).
4. Apply the load test referring to the chart to the right.
The final voltage r~L!St be above the standard mini
mum value shown below.
STANDARD MINIMUM VOLTAGE
Approx Bat
tery Temper
ature
70F (21C)
60F (15C)
50F (10C)
40F (4C)
30F (-1C)
20 F (-7C)
If the voltage measures at or above the minimum, pro
ceed to step 4.
If the voltage is below the minimum, quick charge the bat
tery for 30 minutes and toad test. If the battery remains
below the minimum, replace the battery and proceed to
step 4.
NOTE: Battery inspection and charging procedures for
Navajo vehicles are different than those outlined
in this bulletin. Refer to the workshop manual for
instructions.
Page 15 of 18
Date Issued: 9/16/93
the workshop manual.
and listen for alternator
R P M
Minimum
Voltage
9.6V
9.5V
9.4 V
9.3V
9.1V
8.9V
Revised:
LOAD TEST CHART
Model
Test Load
(Amps)
323/Prot.
180
626/MX-6
174
929
180
195
MX-3
150
180
165
MX-5
105
RX-7
180
165
195
MPV
150
195
B-Series
150
195
195