Battery Diagnostics Chart; Starter Won't Crank; Visual Inspection; Test Indicator/Open Circuit Voltage Test - Dodge D150 1990 Service Manual

8A - 8 BATTERY/STARTING/CHARGING SYSTEMS DIAGNOSTICS
BATTERY DIAGNOSTICS CHART
BROKEN/CRACKED
F. C. = 1
REPLACE BATTERY*
T
VISUAL INSPECTION
CHECK FOR OBVIOUS DAMAGE SUCH AS CRACKED OR
BROKEN CASE THAT SHOWS LOSS OF ELECTROLYTE,
TERMINAL DAMAGE, LOOSE OR CORRODED
CONNECTIONS, CLEAN AND TIGHTEN CONNECTORS
STARTER STILL W O N T CRANK
PROCEED TO STARTER TEST
PROCEDURES ON VEHICLE IN THIS GROUP
N O OBVIOUS DAMAGE
CHECK TEST INDICATOR/OPEN CIRCUIT VOLTAGE
POSSIBLE CAUSE-IOD-REFER
TO IGNITION OFF DRAW SECTION
TEST INDICATOR/OPEN CIRCUIT VOLTAGE TEST
1. TURN HEADLAMPS ON FOR 15 SECONDS
2. TURN HEADLAMPS OFF FOR 2 MINUTES TO ALLOW
BATTERY VOLTAGE TO STABILIZE
3. REMOVE NEGATIVE, THEN POSITIVE CABLE.
ELIMINATE EXCESS IOD
F. C. = 3
1
NO EXCESS IOD FOUND
•CHARGE BATTERY—REFER
TO CHARGING BATTERY
CHARGE
ACCEPTED
GREEN BALL SHOWING AND
OPEN CIRCUIT VOLTAGE
ABOVE 12.40 VOLTS**
W O N T ACCEPT CHARGE
F. C. = 4
1. NO GREEN BALL SHOWING
2. OPEN CIRCUIT VOLTAGE BELOW 12.40
VOLTS. SEE CHARGING COMPLETELY
DISCHARGED BATTERY
YELLOW OR BRIGHT INDICATOR
F. C. = 2
DO NOT CHARGE, BOOST, OR
TEST, ELECTROLYTE BELOW
INDICATOR. REPLACE BATTERY,
CHECK CHARGING SYSTEM
STARTER STILL W O N T CRANK
PROCEED TO STARTER TEST
PROCEDURES ON VEHICLE IN
THIS GROUP
LOAD TEST
DISCHARGE BATTERY AT 300 AMPERES FOR 15 SECONDS. ALLOW BATTERY
TO RECOVER FOR 15 SECONDS. CONNECT VOLTMETER AND AMPERE LOAD
EQUAL TO 1/2 THE COLD CRANKING AMPERE RATING OF THE BATTERY FOR
15 SECONDS. OBSERVE VOLTAGE AT 15 SECONDS WITH LOAD ON.
NOTE: ESTIMATE TEMPERATURE OF BATTERY.
REFER TO LOAD TEST VOLTAGE CHART.
VOLTAGE AT OR ABOVE
9.6 VOLTS AT ROOM
(70 DEG. F) TEMP.
VOLTAGE BELOW
9.6 VOLTS AT ROOM
(70 DEG. F) TEMP.
PASSED LOAD TEST
RETURN BATTERY TO USE
T
FAILED LOAD TEST
F. C. = 5
•REPLACE BATTERY
LOAD TEST VOLTAGE CHARGE
ESTIMATED
ELECTROLYTE
TEMPERATURE
MINIMUM
REQUIRED
VOLTAGE
UNDER
15 SEC. LOAD
7 0 ° F (21° C) & ABOVE
6 0 ° F (16° C)
5 0 ° F (16° C)
4 0 ° F (4° C)
3 0 ° F ( - 1 ° C)
2 0 ° F ( - 7 ° C)
10° F ( - 1 2 ° C)
0 ° F ( - 1 8 ° q
9.6
9.5
9.4
9.3
9.1
8.9
8.7
8.5
VOLTMETER MUST BE ACCURATE
TO 1/10 VOLT
STARTER STILL W O N T CRANK
PROCEED TO STARTER TEST
PROCEDURES ON VEHICLE IN
THIS GROUP
NOTES: * AFTER CHARGING OR REPLACING A BATTERY,
CHECK THE VEHICLE'S CHARGING SYSTEM, A N D
CLEAN A N D TIGHTEN BATTERY CONNECTORS
(REFER TO APPLICABLE SECTIONS O F THIS
SERVICE MANUAL).
FAILURE CODE (F.C.) CHART
FAILURE CODE (F. C.)
NUMBER
CONDITION
1
2
3
4
5
BROKEN/CRACKED
YELLOW/BRIGHT INDICATOR
IGNITION OFF DRAW
BATTERY WON'T ACCEPT CHARGE
BATTERY FAILED LOAD TEST
" C H E C K I N G OPEN CIRCUIT VOLTAGE WILL
MONITOR " G R E E N BALL" INDICATION
FOR ALL 6 CELLS.
898A-13