Next, is the charge circuit working when the motor is running? Refer to above under run after start condition.
Then have a battery load test done after manuel recharge, to be sure of the battery capacity if the battery has quite a bit of age. Use this type indicator to get a look at these operating conditions, recognize what does not look good and go to the points that affect that operation.Ī bad battery, low state of charge, poor cable connections will make the Led go to 11 volts upon starting attempt and cause poor or slow motor turn-over.Īlway do the easy work first, as you need to do this as part of good service anytime.
Going beyond this point is a lot of detail you need not know unless you want to go to great lengths to fully learn the whats and whys of the whole subject. (((if the battery is good))), and alternator is working.Īnything much different than these indications suggests aging and if bad enough a fault with cable connections, alternator and or regulator. Starting: lamps go out leaving 11 or 12 volts lamp lighted when heavey currents are drawn, discharging the battery.Įngine running right after starting: Leds all light up to the top at 15+volts indicating the alternator circuit is functional.Įngine running for 5 or more minutes after starting = lamps go out from the hi voltage end downward indicating the battery has/ is recharging and it's voltage is coming up to 'float' running level of about 14 'running' volts. Normal motor off, battery charged = 11 and 12.6 volt lamps lighted. The lamps are labeled with the voltages they will light on and when. The trick to using this tester is "UNDER VARIOUS OPERATING CONDITIONS" because an indicating lamp by it'self cannot talk to you for different conditions. It has 5 led indicator lamps telling you what the status of the system is "under various operating conditions". Get an LED tester 'stick' from Radio Shack or Habor Freight at less than $10. Read and clear OEM level diagnostic trouble codes (DTC).Here is a tip for everyone that has charging issues. Perform dealership level routines, self-tests and calibrations for diagnosis, service and repairs. View, graph, record and playback live data.Įnable and disable actuators, relays and components. Read and clears OEM level diagnostic trouble codes (DTC) includes OEM details. Professional-level functionality for reading and clearing fault codes monitoring, graphing, recording and playback of live data performs bi-directional controls, routines, relearns and calibrations for vehicle on-board systems. Read permanent diagnostic trouble codes (PDTC) for Powertrain. Read vehicle information (VIN, CAL ID, CVN, IPT). Read pending diagnostic trouble codes (DTC) for Powertrain.Ĭontrol of on-board system, test or component. View on-board monitoring test results for specific monitored systems. View oxygen sensor monitoring test results. Read current diagnostic trouble codes (DTC) for Powertrain.Įrase diagnostic trouble codes (DTC) for Powertrain. Identifies three (3) levels of vehicle fault severity. View vehicle conditions recorded by the on-board computer at the time the emission-related fault.
EQUUS INNOVA 3721 BATTERY AND CHARGING SYSTEM MONITOR HOW TO
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