LEMON Manuals: Even more car manuals for everyone
Home >> Plymouth >> 1992 >> Voyager Base, Standard >> Repair and Diagnosis >> Electrical >> Charging Systems >> Alternator & Regulator >> Testing (On-Vehicle) >> Test Ch-1, Battery Test

Test Ch-1, Battery Test

NOTE: Perform visual check before proceeding.
CAUTION: If battery shows signs of freezing or leakage, battery posts are loose or battery has low electrolyte level, DO NOT  test.
  1. If battery has a built-in hydrometer, go to step 2). Turn ignition and all accessories off. Using a voltmeter, check battery voltage across battery posts. If voltage is 12.3 volts or more, go to step 3). If voltage is less than 12.3 volts, charge battery and go to step 3).
  2. If battery hydrometer is Green, go to step 3). If battery hydrometer is Yellow or a bright color, replace battery and perform TEST CH-VER, CHARGING VERIFICATION . If battery hydrometer is dark in color, charge battery and go to step 3).
  3. Disconnect battery cables and check terminals and posts. Clean terminals and posts as necessary and retest. Connect a load tester to battery posts. Apply 300-amp load for 15 seconds. Wait 15 seconds to allow battery to stabilize. Apply a load equal to 50 percent of battery cold cranking rating for 15 seconds and record minimum voltage reading.
  4. Determine battery operating temperature and check battery minimum voltage specification. See MINIMUM VOLTAGE SPECIFICATIONS  table. If voltage is not to specification, replace battery and perform TEST CH-VER, CHARGING VERIFICATION . If voltage reading is to specification, go to step 5).
    MINIMUM VOLTAGE SPECIFICATIONS

    Battery Temperature Minimum Volts
    70°F (21°C) Or More 9.6
    60°F (16°C) 9.5
    50°F (12°C) 9.4
    40°F (4°C) 9.3
    30°F (-1°C) 9.1
    20°F (-7°C) 8.9
    10°F (-12°C) 8.7
    0°F (-18°C) 8.5
  5. Reconnect battery cables. Inspect alternator belt tension and condition. Replace belt as necessary. Start engine. Set engine speed to 2000 RPM for 30 seconds. Turn ignition off. Connect DRB-II. Turn ignition on with engine off. Read faults.
  6. If DRB-II displays BATTERY TEMP SENSOR OUT OF LIMIT, replace SBEC and perform the TEST CH-VER, CHARGING VERIFICATION  test. If DRB-II displays ALTERNATOR FIELD NOT SWITCHING PROPERLY, proceed to TEST CH-2, ALTERNATOR FIELD NOT SWITCHING PROPERLY . If DRB-II does not display either message, go to next step.
  7. If DRB-II displays CHARGING SYSTEM VOLTAGE TOO LOW, go to TEST CH-3, CHARGING SYSTEM VOLTAGE LOW . If DRB-II displays CHARGING SYSTEM VOLTAGE TOO HIGH, see TEST CH-4, CHARGING SYSTEM VOLTAGE HIGH . If DRB-II does not display any faults, there are either no fault messages or faults are intermittent.
  8. Actuate alternator field. Put DRB-II in voltmeter mode. Probe Dark Green wire at rear of alternator. Voltage reading should fluctuate between zero and battery voltage every 1.4 seconds. While watching DRB-II, wiggle wires between alternator harness and SBEC.
  9. If there is no interruption in normal voltage cycle, test is complete. Perform TEST CH-VER, CHARGING VERIFICATION . If normal voltage cycle is interrupted, repair harness as necessary. Perform TEST CH-VER, CHARGING VERIFICATION .
scientia non olet · About LEMON Manuals