2000 CHRYSLER CARAVAN engine coolant

TEST TC-81ACONTINUED - REPAIRING - TEMPERATURE OF ENGINE COOLANT SRC HIGH
EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-81A KEY OFF.
CONTINUED FROM DISCONNECT THE ECT
THE PREVIOUS SENSOR HARNESS
PAGE. CONNECTOR.**
KEY ON. MEASURE THE ECT REPAIR THE ECT
SIGNAL CIRCUIT. IS THE VOLTAGE YES SENSOR SIGNAL CKT
USE A VOLTMETER IN ABOVE 5.5 VOLTS? FOR A SHORT TO
THE FOLLOWINGVOLTAGE.* IF OK,
STEP. FIG.1 REPLACE THE ECM.*
NO
CONNECT A JUMPER WITH THE DRB, READ REPLACE THE ENGINE
BETWEEN THE ECT THE ENGINE COOLANT IS THE VOLTAGE YES COOLANT
SENSOR SIGNAL AND TEMPERATURE SENSOR BELOW 1.0 VOLT? TEMPERATURE
SENSOR GROUND CKT. VOLTAGE. SENSOR.*
FIG.1
NO
MOVE THE JUMPER WITH THE DRB, READ
WIRE FROM THE THE ENGINE COOLANT IS THE VOLTAGE YES REPAIR THE OPEN
SENSOR GROUND TO TEMPERATURE SENSOR BELOW 1.0 VOLT? SENSOR GROUND
AN ENGINE GROUND. VOLTAGE. CIRCUIT.*
FIG.1
NO
KEY OFF.
DISCONNECT THE ECM USE AN OHMMETER IN
HARNESS THE FOLLOWING
CONNECTORS.** STEP.
MEASURE THE ENGINE
COOLANT TEMEPERATURE IS THE RESISTANCE YES REPLACE THE ENGINE
SENSOR SIGNAL BELOW 5.0 OHMS? CONTROL MODULE.*
CIRCUIT.
FIG.2
NO
REPAIR THE OPEN
ENGINE COOLANT
TEMPERATURE SENSOR
SIGNAL CIRCUIT.*
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TEST TC-82AREPAIRING - TEMPERATURE OF ENGINE COOLANT SRC LOW EXCEEDED
Perform TEST DTC Before Proceeding
FIG.1
FIG.2
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TEST TC-82AREPAIRING - TEMPERATURE OF ENGINE COOLANT SRC LOW EXCEEDED
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
WITH THE DRB, READ IS THE ENGINE
START TEST THE ENGINE COOLANT COOLANT YES CONTINUE TEST
TC-82A. TEMPERATURE SENSOR TEMPERATURE SENSOR TC-82A ON THE
VOLTAGE. VOLTAGE BELOW NEXT PAGE.
0.3 VOLT?
NO
USING THE SCHEMATIC, WAS THERE ANY REPAIR THE HARNESS
WIGGLE THE ENGINE MONITOR THE DRB ENGINE COOLANT YES OR CONNECTOR THAT
COOLANT TEMPERATURE DISPLAY. TEMPERATURE SENSOR CAUSED THE VOLTAGE
SENSOR CONNECTOR & VOLTAGE CHANGE? CHANGE.*
HARNESS. FIG.1
NO
AT THIS TIME, THE USING THE
CONDITION REQUIRED SCHEMATIC AS A WERE ANY PROBLEMS YES REPAIR AS
TO SET THE CODE IS GUIDE, INSPECT THE FOUND? NECESSARY.*
NOT PRESENT. WIRING AND
FIG.2 CONNECTORS.
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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TEST TC-82ACONTINUED - REPAIRING - TEMPERATURE OF ENGINE COOLANT SRC LOW
EXCEEDED
FIG.1
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TEST TC-82ACONTINUED - REPAIRING - TEMPERATURE OF ENGINE COOLANT SRC LOW
EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-82A DISCONNECT THE
CONTINUED FROM ENGINE COOLANT
THE PREVIOUS TEMPERATURE SENSOR
PAGE. HARNESS
CONNECTOR.**
WITH THE DRB, READ IS THE ENGINE REPLACE THE ENGINE
ENGINE COOLANT COOLANT YES COOLANT
TEMPERATURE SENSOR TEMPERATURE SENSOR TEMPERATURE
VOLTAGE. VOLTAGE ABOVE 4.0 SENSOR.*
VOLTS?
NO
KEY OFF. USING AN OHMMETER, REPAIR THE SENSOR
DISCONNECT THE ECM MEASURE BETWEEN THE IS THE RESISTANCE YES SIGNAL CIRCUIT FOR
HARNESS SENSOR SIGNAL BELOW 5.0 OHMS? A SHORT TO
CONNECTORS.** CIRCUIT AND GROUND. GROUND.*
FIG.1
NO
WITH AN OHMMETER SENSOR SIGNAL REPAIR THE ECT
MEASURE THE CIRCUIT AND THE IS THE RESISTANCE YES SENSOR SIGNAL
RESISTANCE BETWEEN SENSOR GROUND BELOW 5.0 OHMS? CIRCUIT FOR A SHORT
THE ENGINE COOLANT CIRCUIT. TO THE ECT SENSOR
TEMPERATURE... FIG.1 GROUND CIRCUIT.*
NO
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST NTC-1ANO TROUBLE CODE TEST MENU
First, check all Technical Service Bulletins that relate to this driveability problem. Perform corrective
actions if indicated; otherwise continue.
1.NO TROUBLE CODE COMPLETE TEST(non-monitored and monitored circuits)
PerformNTC-2AthroughNTC-13Ain sequence until the driveability problem is found.
NO TROUBLE CODE MENU
CHECKING GLOW PLUG OPERATION.........................................NTC-2A
CHECKING FUEL INJECTION PUMP CIRCUITS.................................NTC-3A
CHECKING THE PCM POWER AND GROUND CIRCUITS.........................NTC-4A
CHECKING ENGINE COOLANT SENSOR CALIBRATION..........................NTC-5A
CHECKING ACCELERATOR PEDAL SENSOR CALIBRATION......................NTC-6A
CHECKING BOOST PRESSURE SENSOR CALIBRATION.........................NTC-7A
CHECKING FUEL TEMPERATURE SENSOR CALIBRATION.......................NTC-8A
CHECKING EGR SYSTEM...................................................NTC-9A
CHECKING THE FUEL HEATER.............................................NTC-10A
CHECKING RADIATOR FAN OPERATION.....................................NTC-11A
CHECKING THE ENGINE MECHANICAL SYSTEMS.............................NTC-12A
CHECKING THE TURBOCHARGER..........................................NTC-13A
2.NO TROUBLE CODE QUICK INDIVIDUAL TEST(individual test only)
If you suspect any of the above items to be the cause of the vehicle's driveability problem, perform
the associated test(s) individually.Return to No Trouble Code Menu if driveability problem still
exists, or perform No Trouble Code Complete Test.
3.NO TROUBLE CODE QUICK SYMPTOM TEST(symptom test only)
Symptom checks cannot be used properly unless the driveability problem characteristic actually
happens while the vehicle is being tested. To reduce diagnostic time, ensure that DTC TEST and
appropriate GENERAL INFORMATION sections have been reviewed before attempting to diagnose
a symptom.
Select the symptom that most accurately describes the vehicle's driveability problem and then
perform the test routine that pertains to this symptom. Perform each routine test in sequence until
the problem is found. For definitions, see Section 12.0 in the GENERAL INFORMATION section in
this manual.
NOTE:For all component locations seeGeneral Information Section 4.0in this manual.
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TEST NTC-5ACHECKING ENGINE COOLANT SENSOR CALIBRATION AND RADIATOR FAN
OPERATION
Perform TEST NTC-1A Before ProceedingN
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TEST NTC-5ACHECKING ENGINE COOLANT SENSOR CALIBRATION AND RADIATOR FAN
OPERATION
Perform TEST NTC-1A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
NOTE: USE A TEMPERA-
TURE PROBE TO ENSURE
ENGINE TEMPERATURE
IS ACTUALLY BELOW
70*C (160*F).
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