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DR-1A CHECKING SYSTEM FOR FAULTS Dodge Dakota

Engine Controls - Tests W/codes - 3.9L ~311 words

DR-1A CHECKING SYSTEM FOR FAULTS

Note. Battery must be fully charged and at rated capacity before performing any driveability test procedure. If vehicle starts and stalls repeatedly, perform test NS-2A .

  1. Connect DRB-II to underhood diagnostic connector and then read fault messages. If there are no faults, start engine and allow it to reach normal operating temperature. Set engine speed to 2000 RPM for at least 10 seconds manually, not using DRB-II.
  2. Return engine to idle. If vehicle is equipped with A/C, set A/C fan on low speed. Turn A/C on. If vehicle stalls when A/C is turned on, perform steps 3) and 4). If vehicle does not stall, go to step 5).
  3. Disconnect and inspect engine controller connector for damaged terminals. Repair connector as necessary. Turn ignition on. Put DRB-II in voltmeter mode. Probe engine controller connector cavity No. 9 (Dark Blue wire).
  4. If there is less than 10 volts at cavity No. 9, repair Dark Blue wire. If there are 10 volts or more at cavity No. 9, replace engine controller. Perform «VERIFICATION PROCEDURE 2»(ref-10648-S37451405732000111000000) .
  5. If vehicle is equipped with automatic transmission, depress brake pedal and shift transmission through all gears. Return shifter to Park. Read faults on DRB-II. If there are still no faults, check if any TECHNICAL SERVICE BULLETINS (TSBs) apply to vehicle relating to driveability problem.
  6. If there are no TSBs, perform test «DR-31A»(ref-10648-S17133560102000111000000) . If there is a TSB, perform corrective action. If driveability problems continue, perform test «DR-31A»(ref-10648-S17133560102000111000000) .
  7. If DRB-II message is "INTERNAL CONTROLLER FAILURE", replace engine controller and perform VERIFICATION PROCEDURE 2. If DRB-II message is "ENGINE IS COLD TOO LONG", repair cooling system as necessary and perform «VERIFICATION PROCEDURE 3»(ref-10648-S03132441872000111000000) .
  8. Using the DRB-II FAULT MESSAGES table, select the fault message and corresponding test. Correct all hard fault messages before proceeding to intermittent fault message.