1994 Dodge Ram

Tiny
DANIEL BENNETT
  • MEMBER
  • 1994 DODGE RAM
Electrical problem
1994 Dodge Ram 6 cyl Two Wheel Drive Manual

how do I change the computer
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Thursday, August 5th, 2010 AT 7:41 PM

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Tiny
RASMATAZ
  • MEMBER
Disconnect the negative battery cable and unplug the wiring connectors from it. Be advised when you disconnect the battery the computer has to go thru a relearning process.
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Friday, August 6th, 2010 AT 5:04 AM
Tiny
DANIEL BENNETT
  • MEMBER
What exactly do you mean by relearning process?
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Friday, August 6th, 2010 AT 8:07 PM
Tiny
RASMATAZ
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RELEARN PROCEDURES
NOTE:If repairs other than battery replacement have been made to late model vehicles, always refer to verification tests in appropriate G - TESTS W/ CODES article in the ENGINE PERFORMANCE section, listed below.

TESTS W/CODES - 2.5L FLEX FUEL (for 2.2L/2.5L TBI models)
TESTS W/CODES - 3.0L (for 3.0L models)
TESTS W/CODES - 3.3L (for 3.3 & 3.5L models)
TESTS W/CODES - 1.8L (for 1.8L models)
TESTS W/CODES - 2.0L/2.0L TURBO (for 2.0L & 2.0L Turbo models)

THEFT ALARM RELEARN PROCEDURE
Theft alarm relearn is necessary whenever battery is disconnected or dead battery is boosted. If battery is connected or boosted without conducting relearn procedure, alarm system will enter power-up mode and vehicle will not start.
Before reconnecting battery or connecting booster, insert door key into driver side door lock. Connect battery cable(s) and cycle driver side door lock once. Vehicle may now be started. On some models, horn will sound 3 times to indicate theft system is activated.
NOTE:If Single Board Engine Controller or Powertrain Control Module (SBEC or PCM) is replaced, theft alarm system will not operate for minimum of 20 engine starts.

SHIFT QUALITY QUICK-LEARN PROCEDURE
This procedure quickly optimizes shift quality. Procedure must be performed after disconnecting battery or loss of voltage supply to Transaxle Control Module (TCM), replacing TCM, transaxle internal components, solenoid assembly or torque converter.
Chrysler's Diagnostic Readout Box (DRB# scan tool with proper cartridge must be used to perform shift quality quick-learn procedure. The following conditions must be met when performing shift quality quick-learn procedure: oil temperature must be greater than 60 F #16 C), brakes must be applied when indicated, engine speed greater than 500 RPM, throttle angle less than 3 degrees, gearshift must be moved only when indicated, gearshift must remain in overdrive as indicated until DRB indicates procedure is complete.

If unused replacement TCM is installed on vehicle with engine at normal operating temperature, shift quality quick-learn procedure will cause TCM to indicate a cold oil temperature. Oil temperature must be monitored with DRB.
If oil temperature is less than 60 F (16 C), allow engine to idle until oil temperature is greater than 60 F (16 C). If oil temperature is greater than 200 F (94 C), allow transaxle to cool until oil temperature is less than 200 F (94 C).
Connect DRB to data link connector, located near brake pedal at bottom of instrument panel. Using proper cartridge and DRB manufacture's instructions, move through program to enter 41TE/AE menu. Start vehicle. Select ADJUSTMENTS function.
Apply brakes. Select QUICK-LEARN function. Place gearshift in Neutral and then "OD" (overdrive) when indicated. Wait until TEST COMPLETE is indicated on DRB. Place gearshift in Park. Release brakes. Remove DRB.

PINION FACTOR PROCEDURE
Pinion factor procedure must be performed if Transaxle Control Module (TCM) is replaced or changed from one vehicle to another. Procedure must be used to calibrate TCM for different equipment combinations to provide speedometer operation and correct readings. Failure to perform this procedure will result in no speedometer operation.
NOTE:It may be necessary to consult manufacturer to determine Final Drive Ration (FDR) number when performing pinion factor procedure.

Connect DRB to data link connector, located near brake pedal at bottom of instrument panel. Using proper cartridge and DRB manufacture's instructions, move through program to enter 41TE/AE menu. Select ADJUSTMENTS function.
Select PINION FACTOR function. Select appropriate Final Drive Ratio (FDR) number and then the tire size. Remove DRB. Road test vehicle and verify speedometer operation.

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Saturday, August 7th, 2010 AT 1:56 AM

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