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1E-6 CHARGING SYSTEM
DIAGNOSIS AND REPAIR SIMPLIFICATION (DARS) CHARTS
NOTE: Refer to Chapter A — General Information for details on how to use this DARS chart.
PROBLEM: BATTERY UNDERCHARGED
STEP
SEQUENCE
ADJUST TENSION TO 90-115 LBF (V-BELT).
140-160 (SERPENTINE BELT)
REPLACE BELT IF NECESSARY
DISCONNECT
NEGATIVE
CABLE
TEST LAMP
ON
Chart 1
RESULT
MAKE SURE NO
ACCESSORIES
ARE ON,
INGITION OFF,
DOORS CLOSED,
UNDER HOOD
LIGHT DIS-
CONNTECTED
(Sh*©
TEST
ALTERNATOR
BELT TENSION
©
TRACE AND CORRECT
CONTINUOUS
DRAIN ON BATTERY
CONNECT TEST
LAMP BETWEEN
CABLE AND
BATTERY POST
(+)
©
TEST
VOLTAGE
ACROSS
POSTS
WHILE
STARTER
MOTOR IS
ENGAGED
JUMPER
BETWEEN WIRE COIL
NEG.(-)
TERMINAL AND
GROUND
IF VOLTAGE IS WITHIN 0.5
VOLT OF VOLTAGE AT
ALTERNATOR
IF VOLTAGE IS NOT
WITHIN 0.5 VOLT OF
VOLTAGE AT
ALTERNATOR, TEST
FOR BATTERY-
TO-ALTERNATOR
CIRCUIT RESISTANCE
CONNECT TEST
LAMP BETWEEN
CABLE AND
BATTERY POST
TEST LAMP
OFF - NO
DRAIN ON
BATTERY
TEST LAMP OFF
TEST LAMP ON
CONNECT VOLTMETER
BETWEEN POS. ( + )
TERMINAL AND
GROUND
POINTER ABOVE
9.0V
ENGAGE STARTER
MOTOR LONG ENOUGH
FOR STABILIZED
VOLTAGE INDICATION
POINTER BELOW
9.0V
TEST BATTERY
USING BATTERY
HEAVY LOAD TEST
PROCEDURE
(CHAPTER ID
BATTERY OK
CHARGE
ACCEPTABLE AS
_--_.SPECIFIED IN TEST
^•r PROCEDURE
BATTERY
NOT OK
©
70137D
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Troubleshooting
