Battery System: Other Dodge Charger V

MICRO 420 BATTERY TESTER

The Micro 420 automotive battery system tester is designed to help the dealership technicians diagnose the cause of a defective battery. (Refer to ELECTRICAL/BATTERY SYSTEM/BATTERY - STANDARD PROCEDURE) for directions on using the Micro 420 battery tester.

BATTERY RECONNECTION

Note. This reconnection procedure is to be performed anytime the battery has been disconnected.

Scheme 29

1. Connect the battery negative cable (2) to the battery post and tighten the clamp nut.
2. Install the rear compartment floor trim panel.

AUTO UP FRONT WINDOW

If the vehicle is equipped with the auto-up front window feature, once the battery is reconnected the door module needs to be calibrated. The door module requires calibration anytime the battery or door module has been disconnected for any length of time. To calibrate, perform the following

1. Turn the Ignition to the Run position.
2. Regardless of current window position, move the driver side front window upward until the window stalls in the full up position. Allow the window motor to stall for at least 2 seconds before releasing the switch.
3. Move the driver side front window downward until the window stalls in the full down position. Allow the window motor to stall for at least 2 seconds before releasing the switch.
4. Move the driver side front window upward until the window stalls in the full up position. Allow the window motor to stall for at least 2 second before releasing the switch.
5. Repeat steps 2, 3 and 4 for the passenger side front window.
6. Verify the windows are properly calibrated by operating the express down and up features on the windows. Repeat this procedure if the calibration failed. If unable to properly calibrate after the second attempt, check the Driver's Door Module (DDM) and Passenger's Door Module (PDM) for Diagnostic Trouble Codes (DTCs) and correct as required.

ELECTRONIC STABILITY PROGRAM (ESP)

If the vehicle is equipped with ESP, once the battery is reconnected, the Steering Angle Sensor (SAS) needs to be calibrated. The SAS requires calibration anytime the battery or an ABS (ESP) component has been disconnected for any length of time. If the SAS is not calibrated following battery reconnection, the ESP/BAS indicator lamp is illuminated following 5 ignition cycles indicating the need for calibration.

To calibrate, perform the following

1. Start the engine.
2. Center the steering wheel.
3. Turn the steering wheel all the way to the left until the internal stop in the steering gear is met, then turn the wheel all the way to the right until the opposite internal stop in the steering gear is met.
4. Center the steering wheel.
5. Stop the engine.

CLEANING

The following information details the recommended cleaning procedures for the battery and related components. In addition to the maintenance schedules found in this article, (Refer to MAINTENANCE SCHEDULES ) it is recommended that these procedures be performed any time the battery or related components must be removed for vehicle service.

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1. Clean the battery cable terminal clamps (2) of all corrosion. Remove any corrosion using a wire brush or cleaning tool (1), and a sodium bicarbonate (baking soda) and warm water cleaning solution.
2. Clean the battery tray and battery holddown hardware using a stiff bristle parts cleaning brush and a sodium bicarbonate (baking soda) and warm water cleaning solution.
3. If the removed battery is to be reinstalled, clean the outside of the battery case and the top cover (3) with a sodium bicarbonate (baking soda) and warm water cleaning solution (2) using a stiff bristle parts cleaning brush (1) to remove any acid film. Rinse the battery with clean water. Ensure that the cleaning solution does not enter the battery cells through the vent holes. If the battery is being replaced, «(Refer to ELECTRICAL/BATTERY SYSTEM - SPECIFICATIONS)»(ref-255942-S33104749632007060500000) for the factory-installed battery specifications. Confirm that the replacement battery is the correct size and has the correct ratings for the vehicle.
4. Clean any corrosion from the battery terminals with a wire brush or terminal cleaner (1), and a sodium bicarbonate (baking soda) and warm water cleaning solution.

The Micro 420 automotive battery tester is designed to help the dealership technicians diagnose the cause of an inoperative battery. (Refer to ELECTRICAL/BATTERY SYSTEM/BATTERY - STANDARD PROCEDURE - USING MICRO 420 BATTERY TESTER) for instructions on the use of the Micro 420 battery tester.

A battery that will not accept a charge is inoperative, and must be replaced. Further testing is not required. A fully-charged battery must be load tested to determine its cranking capacity. A battery that is fully-charged, but does not pass the load test, is inoperative and must be replaced.

Note. Completely discharged batteries may take several hours to accept a charge. Refer to STANDARD PROCEDURE for the proper battery charging procedures.

BATTERY CHARGING

Battery charging is the means by which the battery can be restored to its full voltage potential. A battery is fully-charged when

1. Micro 420 electrical system tester indicates battery is OK.
2. All of the battery cells are gassing freely during battery charging.
3. Open-circuit voltage of the battery is 12.65 volts or above.

After the battery has been charged to 12.65 volts or greater, perform a load test to determine the battery cranking capacity, (Refer to ELECTRICAL/BATTERY SYSTEM/BATTERY - STANDARD PROCEDURE - USING MICRO 420 BATTERY TESTER) for the proper battery load test procedures. If the battery will endure a load test, return the battery to service. If the battery will not endure a load test, it is inoperative and must be replaced.

Clean and inspect the battery hold downs, tray, terminals, posts, and top before completing battery service. (Refer to ELECTRICAL/BATTERY SYSTEM - CLEANING) and (Refer to ELECTRICAL/BATTERY SYSTEM - INSPECTION) for the proper battery system cleaning and inspection procedures.

CHARGING A COMPLETELY DISCHARGED BATTERY

The following procedure should be used to recharge a completely discharged battery. Unless this procedure is properly followed, a good battery may be needlessly replaced.

1. Measure the voltage at the battery posts with a voltmeter, accurate to 1/10 (0.10) volt. If the reading is below ten volts, the battery charging current will be low. It could take some time before the battery accepts a current greater than a few milliamperes. Such low current may not be detectable on the ammeters built into many battery chargers.
2. Disconnect and isolate the battery negative cable. Connect the battery charger leads. Some battery chargers are equipped with polarity-sensing circuitry. This circuitry protects the battery charger and the battery from being damaged if they are improperly connected. If the battery state-of-charge is too low for the polarity-sensing circuitry to detect, the battery charger will not operate. This makes it appear that the battery will not accept charging current. See the instructions provided by the manufacturer of the battery charger for details on how to bypass the polarity-sensing circuitry.
3. Battery chargers vary in the amount of voltage and current they provide. The amount of time required for a battery to accept measurable charging current at various voltages is shown in the Charge Rate Chart. If the charging current is still not measurable at the end of the charging time, the battery is inoperative and must be replaced. If the charging current is measurable during the charging time, the battery may be good and the charging should be completed in the normal manner.

CHARGING TIME REQUIRED

The time required to charge a battery will vary, depending upon the following factors

1. Battery Capacity - A completely discharged heavy-duty battery requires twice the charging time of a small capacity battery.
2. Temperature - A longer time will be needed to charge a battery at -18° C (0° F) than at 27° C (80° F). When a fast battery charger is connected to a cold battery, the current accepted by the battery will be very low at first. As the battery warms, it will accept a higher charging current rate (amperage).
3. Charger Capacity - A battery charger that supplies only five amperes will require a longer charging time. A battery charger that supplies twenty amperes or more will require a shorter charging time.
4. State-Of-Charge - A completely discharged battery requires more charging time than a partially discharged battery. Electrolyte is nearly pure water in a completely discharged battery. At first, the charging current (amperage) will be low. As the battery charges, the specific gravity of the electrolyte will gradually rise.

The Battery Charging Time Chart gives an indication of the time required to charge a typical battery at room temperature based upon the battery state-of-charge and the charger capacity.

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Always use the Micro 420 Instruction Manual that was supplied with the tester as a reference. If the Instruction Manual is not available the following procedure can be used

BATTERY CABLES

A voltage drop test will determine if there is excessive resistance in the battery cable terminal connections or the battery cable. If excessive resistance is found in the battery cable connections, the connection point should be disassembled, cleaned of all corrosion or foreign material, then reassembled. Following reassembly, check the voltage drop for the battery cable connection and the battery cable again to confirm repair.

When performing the voltage drop test, it is important to remember that the voltage drop is giving an indication of the resistance between the two points at which the voltmeter probes are attached. EXAMPLE: When testing the resistance of the battery positive cable, touch the voltmeter leads to the battery positive cable terminal clamp and to the battery positive cable eyelet terminal at the starter solenoid B(+) terminal stud. If you probe the battery positive terminal post and the battery positive cable eyelet terminal at the starter solenoid B(+) terminal stud, you are reading the combined voltage drop in the battery positive cable terminal clamp-to-terminal post connection and the battery positive cable.

NEGATIVE - ENGINE COMPARTMENT

1. Position the battery negative cable in the engine compartment.
2. Raise vehicle on hoist, «(Refer to LUBRICATION & MAINTENANCE/HOISTING - STANDARD PROCEDURE)»(ref-255933-S08362833522007060500000) .
3. Install the fastener securing the battery negative cable to the transmission housing. Torque the bolt to 11 N.m (8 ft. lbs.).
4. One at a time, install the battery cable retaining pushpins, fasteners and routing clips until the cable is installed exactly where it was in the vehicle.
5. Lower vehicle.
6. Install the fastener securing the battery negative cable to the right front strut tower.
7. Connect the battery negative cable.
8. Install the spare tire cover.

NEGATIVE - REAR COMPARTMENT

1. Position the battery negative cable in the vehicle.
2. Install the fastener (4) securing the battery negative cable to the body.
3. Connect the battery negative cable (3).
4. Install the spare tire cover.

POSITIVE - BATTERY TO BULKHEAD

1. Position the battery positive cable in the vehicle taking care to route the cable under the floor cross members.
2. Position the bulkhead insulator aside to gain access to the battery positive cable bulkhead fastener.
3. Install the battery positive cable to bulkhead fastener.
4. Position the bulkhead insulator back to the normal position.

1. One at a time, secure the battery positive cable to the routing clips located in the rear seat area.
2. One at a time, secure the battery positive cable to the routing clips located in the rear compartment area.
3. Position the carpet back to the normal position.
4. Install the right, B - pillar lower trim panel, «(Refer to BODY/INTERIOR/B-PILLAR TRIM - INSTALLATION)»(ref-255946-S07420187042007060500000) .
5. Install the right, front and rear door sill trim panels.
6. Install the right, rear seat cushion. Engage retainer loops into cup on floor kick up. Push downward at forward edge at each retainer loop of the rear seat cushion to engage retainers.
7. Install the right, front seat, «(Refer to BODY/SEATS/SEAT - INSTALLATION)»(ref-255946-S23485709192007060500000) .
8. Install the battery positive cable to rear Power Distribution Center (PDC) fastener (3).
9. Install the PDC cover (5).
10. Connect the battery positive cable (1).
11. Connect the battery negative cable (3).
12. Install the spare tire cover.

POSITIVE - ENGINE COMPARTMENT

1. Position the battery positive cable in the engine compartment.
2. On the 2.7L and 3.5L secure the battery positive cable to the routing clips located at the back of the engine.
3. On the 5.7L secure the battery positive cable to the routing clip located at the back of the starter.
4. Install the battery positive cable to starter fastener.
5. Install the battery positive cable to bulkhead fastener.
6. Install the right front wheelhouse splash shield, «(Refer to BODY/EXTERIOR/RF WHEELHOUSE SPLASH SHIELD - INSTALLATION)»(ref-255946-S32272212122007060500000) .
7. Lower vehicle.
8. Connect the battery negative cable (3).
9. Install the spare tire cover.

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1. Remove the battery, «(Refer to ELECTRICAL/BATTERY SYSTEM/BATTERY - REMOVAL)»(ref-255942-S29684377182007060500000) .
2. Using a small flat bladed tool, gently release the two mounting tabs that secure the Power Distribution Center (PDC) to the battery tray. Position the PDC aside.
3. Remove the battery tray mounting fasteners and remove the battery tray from the vehicle.