CHRYSLER CARAVAN 2000 Service Manual

TEST SC-3BCONTINUED - CHECKING SPEED CONTROL OPERATION
*Perform Verification TEST VER-3A. **Check connectors - Clean / repair as necessary.
TEST SC-3B
CONTINUED FROM DISCONNECT THE ECM
THE PREVIOUS TURN IGNITION OFF. HARNESS
PAGE. CONNECTORS.**
OF THE SECONDARY REPAIR OPEN IN THE
USING AN OHMMETER, BRAKE LAMP SWITCH IS THE RESISTANCE NO SECONDARY BRAKE
MEASURE THE SIGNAL CIRCUIT. BELOW 5.0 OHMS? LAMP SWITCH SIGNAL
RESISTANCE...CIRCUIT.*
FIG.1
YES
THE BRAKE LAMP REPAIR SHORT TO
USING AN OHMMETER, SWITCH CONNECTOR IS THE RESISTANCE YES GROUND IN THE
MEASURE RESISTANCE CAVITY 1 AND GROUND. BELOW 5.0 OHMS? SECONDARY BRAKE
BETWEEN... LAMP SWITCH SIGNAL
FIG.2 CIRCUIT.*
NO
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST SC-4ACHECKING SPEED CONTROL OPERATION
Perform TEST SC-1A Before Proceeding
FIG.1
FIG.2
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TEST SC-4ACHECKING SPEED CONTROL OPERATION
Perform TEST SC-1A Before Proceeding
*Perform Verification TEST VER-3A. **Check connectors - Clean / repair as necessary.
START TEST
SC-4A. TURN IGNITION OFF.
DISCONNECT THE USING AN OHMMETER, REPAIR OPEN IN
CLUTCH PEDAL MEASURE RESISTANCE IS THE RESISTANCE NO CLUTCH PEDAL
SWITCH HARNESS BETWEEN CLUTCH PEDAL BELOW 5.0 OHMS? SWITCH GROUND
CONNECTOR.** SW.CONNECTOR CAVITY CIRCUIT.*
2 AND GROUND. FIG.1
YES
KEY ON. WHILE THE CLUTCH PEDAL CHECK ADJUSTMENT OF
OBSERVING THE DRB, SWITCH HARNESS DID THE DRB CHANGE YES CLUTCH PEDAL SWITCH.
CONNECT A JUMPER CONNECTOR CAVITIES FROM "RELEASED" TO IF ADJUSTMENT IS OK,
WIRE ACROSS... 1 AND 2. "PRESSED"? REPLACE THE CLUTCH
FIG.1 PEDAL SWITCH.*
NO
KEY OFF. USING AN OHMMETER,
DISCONNECT THE ECM MEASURE THE IS THE RESISTANCE NO REPAIR OPEN CLUTCH
HARNESS RESISTANCE OF THE BELOW 5.0 OHMS? PEDAL SWITCH SENSE
CONNECTORS.** CLUTCH PEDAL SWITCH CIRCUIT.*
CIRCUIT. FIG.2
YES
ECM HARNESS REPAIR CLUTCH
USING AN OHMMETER CONNECTOR CAVITY IS THE RESISTANCE NO PEDAL SWITCH SENSE
MEASURE RESISTANCE 46 AND GROUND. ABOVE 5.0 OHMS? CIRCUIT FOR SHORT
BETWEEN... TO GROUND.*
FIG. 1
YES
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST SC-5ACHECKING SPEED CONTROL OPERATION
Perform TEST SC-1A Before ProceedingS
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TEST SC-5ACHECKING SPEED CONTROL OPERATION
Perform TEST SC-1A Before Proceeding
*Perform Verification TEST VER-3A. **Check connectors - Clean / repair as necessary.
START TEST TEST DRIVE THE DOES THE NO REFER TO THE BODY
SC-5A. VEHICLE. SPEEDOMETER DIAGNOSTIC
OPERATE CORRECTLY. PROCEDURES MANUAL...
YES
TO DIAGNOSE
INOPERATIVE
SPEEDOMETER.
USING THE DRB,
MONITOR VEHICLE DOES THE DRB YES REPLACE THE ENGINE
SPEED WHILE TEST DISPLAY CORRECT CONTROL MODULE.*
DRIVING THE VEHICLE SPEED?
VEHICLE
NO
PERFORM TEST
TC-91A.
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TEST SC-6ACHECKING CRUISE INDICATOR OPERATION
Perform TEST SC-1A Before Proceeding
FIG.1
FIG.2
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TEST SC-6ACHECKING CRUISE INDICATOR OPERATION
Perform TEST SC-1A Before Proceeding
*Perform Verification TEST VER-3A. **Check connectors - Clean / repair as necessary.
NOTE: PERFORM TEST
START TEST SC-1A TO VERIFY
SC-6A. PROPER CRUISE
SWITCH OPERATION
BEFORE CONTINUING.
TURN IGNITION ON. MONITOR CRUISE DOES LAMP STATE CHECK CRUISE LAMP
WITH THE DRB SELECT LAMP STATE WHILE CHANGE FROM "ON" YES BULB, REPLACE AS
"BODY" "MIC" PRESSING CRUISE TO "OFF" WHEN NECESSARY. IF OK,
"MONITOR DISPLAY" ON/OFF BUTTON PRESSING THE REPLACE THE
THEN "CCD BUS INFO". SEVERAL TIMES. BUTTON? INSTRUMENT CLUSTER.*
NO
KEY OFF. KEY ON. CONNECT A
DISCONNECT THE ECM JUMPER WIRE BETWEEN IS THE SPEED YES REPLACE THE ENGINE
HARNESS ECM HARNESS CONTROL LAMP ON? CONTROL MODULE.*
CONNECTORS.** CONNECTOR CAVITY 30
AND GROUND. FIG.1
NO
KEY OFF. USING AN OHMMETER, REPAIR SHORT TO
DISCONNECT THE BCM MEASURE RESISTANCE IS THE RESISTANCE YES GROUND ON THE
HARNESS BETWEEN ECM HARNESS BELOW 5.0 OHMS? SPEED CONTROL LAMP
CONNECTORS.** CONNECTOR CAVITY 30 CONTROL CIRCUIT.*
AND GROUND. FIG.1
NO
USING AN OHMMETER
MEASURE THE SPEED IS THE RESISTANCE YES REPAIR OPEN SPEED
CONTROL LAMP ABOVE 5.0 OHMS? CONTROL LAMP
CONTROL CIRCUIT. CONTROL CIRCUIT.*
FIG.2
NO
REPLACE THE BODY
CONTROL MODULE.*
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TEST NS-SELNO START SELECTION MENU
NOTE:The battery must be fully charged before performing any test in this manual.
NOTE:If the engine will not crank or cranks but will not run, be sure to check the Sentry Key
Immobilizer Module (SKIM) for proper communication and trouble codes.
NOTE:With the DRB, attempt to read ECM trouble codes. If the DRB is unable to communicate with
the ECM, perform test NS-2A. If there are any trouble codes present they must be repaired before
continuing with the No Start Symptom diagnostics.
Below you will find a recommended procedure to correct a No Start Problem by symptom. They
should be performed in the order that they are listed.
Repairing a No Crank Condition..............................................NS-1A
Repairing a No Response Condition...........................................NS-2A
Repairing a No Start Condition................................................NS-3A
Repairing a Start and Stall Condition...........................................NS-4A
Checking the Engine Mechanical Systems......................................NS-5A
NOTE:A failed engine coolant temperature (ECT) sensor can cause a cranks but will not run or an
extended cranking before starting condition. This occurs when the ECT sensor calibration fails
(sensor indicates engine temp is warmer than actual engine temp) and the ECM cannot command
proper fuel quantity to the injection pump.
NOTE:For all component locations seeGeneral Information Section 4.0 in this manual.
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TEST NS-SELNO START SELECTION MENU
NOTES
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TEST NS-1AREPAIRING A NO CRANK CONDITION
Perform TEST NS-SEL Before Proceeding
FIG.1
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