heater CHRYSLER CARAVAN 2000 Service Manual

TABLE OF CONTENTS - Continued
TC-86AREPAIRING - TIMING GOVERNING POSITIVE GOVERNOR
DEVIATION.............................................266
TC-91AREPAIRING - VEHICLE SPEED SENSOR TROUBLE CODES. . . .270
TC-94AREPAIRING - VEHICLE THEFT ALARM TROUBLE CODES......280
SENTRY KEY IMMOBILIZER SYSTEM
SK-1AIDENTIFYING SENTRY KEY IMMOBILIZER PROBLEMS........286
SK-2AREPAIRING - PCM STATUS FAILURE.......................290
SK-3AREPAIRING - ROLLING CODE FAILURE.....................294
SK-4AREPAIRING - SERIAL LINK EXTERNAL FAILURE..............298
SK-5AREPAIRING - TRANSPONDER COMMUNICATION FAILURE.....302
SK-6ATRANSPONDER CRC (CYCLIC REDUNDANCY CHECK)
FAILURE...............................................306
SK-7AREPAIRING - TRANSPONDER ID MISMATCH................310
SK-8AREPAIRING - TRANSPONDER RESPONSE MISMATCH........314
SK-9AREPAIRING - VIN MISMATCH..............................318
NO TROUBLE CODE TESTS
NTC-1ANO TROUBLE CODE TEST MENU..........................322
NTC-2ACHECKING GLOW PLUG OPERATION......................324
NTC-3ACHECKING FUEL INJECTION PUMP CIRCUITS...............328
NTC-4ACHECKING THE PCM POWER AND GROUNDS..............330
NTC-5ACHECKING ENGINE COOLANT SENSOR CALIBRATION AND
RADIATOR FAN OPERATION..............................332
NTC-6ACHECKING ACCELERATOR PEDAL POSITION SENSOR
CALIBRATION...........................................334
NTC-7ACHECKING BOOST PRESSURE SENSOR CALIBRATION.......336
NTC-8ACHECKING FUEL TEMPERATURE SENSOR CALIBRATION.....338
NTC-9ACHECKING EGR SYSTEM.................................340
NTC-10ACHECKING THE FUEL HEATER AND THE CRANKCASE VENT
HEATER................................................342
NTC-11ACHECKING RADIATOR FAN OPERATION....................352
NTC-12ACHECKING THE ENGINE MECHANICAL SYSTEMS...........366
NTC-13ACHECKING THE TURBOCHARGER OPERATION..............368
SPEED CONTROL TESTS
SC-1ACHECKING SPEED CONTROL OPERATION..................372
SC-2ACHECKING SPEED CONTROL OPERATION..................376
SC-3ACHECKING SPEED CONTROL OPERATION..................378
SC-4ACHECKING SPEED CONTROL OPERATION..................386
SC-5ACHECKING SPEED CONTROL OPERATION..................388
SC-6ACHECKING CRUISE INDICATOR OPERATION................390
NO START TESTS
NS-SELNO START SELECTION MENU.............................392
NS-1AREPAIRING A NO CRANK CONDITION......................394
NS-2AREPAIRING A NO RESPONSE CONDITION..................400
NS-3AREPAIRING - NO START..................................410
NS-4AREPAIRING A START AND STALL CONDITION................418
NS-5ACHECKING THE ENGINE MECHANICAL SYSTEMS...........420
iv
ProCarManuals.com

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.
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
322
ProCarManuals.com

TEST NTC-10ACHECKING THE FUEL HEATER AND THE CRANKCASE VENT HEATER
FIG. 1
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
342
ProCarManuals.com

TEST NTC-10ACHECKING THE FUEL HEATER AND THE CRANKCASE VENT HEATER
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TURN IGNITION OFF.
START TEST YES PERFORM TEST
NTC-10A. INSPECT FUSE #16 IS THE FUSE OPEN? NTC-10B.
IN THE PDC.
NO
USING A TEST
REMOVE THE FUEL LIGHT, PROBE RELAY IS THE TEST LIGHT NO REPLACE THE POWER
HEATER RELAY.** CONNECTOR CAVITY ON? DISTRIBUTION
30 (IN PDC). CENTER.*.
FIG. 1
YES
USING A TEST REPAIR THE FUSED
LIGHT, PROBE FUSED IS THE TEST LIGHT NO IGNITION SWITCH
TURN IGNITION ON. IGNITION SW OUTPUT ON? OUTPUT CIRCUIT FOR
CKT (IN PDC). AN OPEN OR SHORT
FIG. 1 TO GROUND.*
YES
WITH IGNITION RELAY CONNECTOR
STILL ON, CONNECT CAVITIES 85 AND 86 IS THE TEST LIGHT NO REPAIR THE OPEN
A TEST LIGHT (IN PDC). ON? RELAY GROUND
ACROSS...CIRCUIT.*
FIG. 1
YES
KEY OFF. DISCONNECT THE
FUEL HEATER AND CONTINUE TEST
INSTALL THE FUEL CRANKCASE VENT TURN IGNITION ON. NTC-10A ON THE
HEATER RELAY. HEATER HARNESS NEXT PAGE.
CONNECTORS.**
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
343
ProCarManuals.com

TEST NTC-10ACONTINUED - CHECKING THE FUEL HEATER AND THE CRANKCASE VENT HEATER
FIG.1
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
344
ProCarManuals.com

TEST NTC-10ACONTINUED - CHECKING THE FUEL HEATER AND THE CRANKCASE VENT HEATER
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
REPAIR THE OPEN FUEL
HEATER RELAY OUTPUT
CIRCUIT TO THE FUEL
HEATER.*
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
345
ProCarManuals.com

TEST NTC-10ACONTINUED - CHECKING THE FUEL HEATER AND THE CRANKCASE VENT HEATER
FIG.1
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
346
ProCarManuals.com

TEST NTC-10ACONTINUED - CHECKING THE FUEL HEATER AND THE CRANKCASE VENT HEATER
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY ON. USING THE
DRB, SELECT9SEN-
SORS9AND READ THE
FUEL TEMP DEGREES.
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
347
ProCarManuals.com

TEST NTC-10ACONTINUED - CHECKING THE FUEL HEATER AND THE CRANKCASE VENT HEATER
FIG.1
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
348
ProCarManuals.com

TEST NTC-10ACONTINUED - CHECKING THE FUEL HEATER AND THE CRANKCASE VENT HEATER
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST NTC-10A CONNECT A TEST
CONTINUED FROM WITH THE IGNITION LIGHT BETWEEN
THE PREVIOUS STILL ON... GROUND AND THE
PAGE. FUEL HEATER RELAY
OUTPUT CKT. AT...
THE CRANKCASE VENT REPAIR THE OPEN FUEL
HEATER HARNESS IS THE TEST LIGHT NO HEATER RELAY OUTPUT
CONNECTOR. ON? CKT FROM THE SPLICE
TO THE CRANKCASE
FIG. 1 VENT HEATER.*
YES
CONNECT A TEST LIGHT REPAIR THE OPEN
ACROSS THE CRANKCASE IS THE TEST LIGHT NO CRANKCASE VENT
VENT HEATER HARNESS ON? HEATER GROUND
CONNECTOR. CIRCUIT.*
FIG. 1
YES
USING AN OHMMETER,
MEASURE RESISTANCE IS THE RESISTANCE NO REPLACE THE
OF THE CRANKCASE BETWEEN CRANKCASE VENT
VENT HEATER. 10.0 AND 16.0 OHMS? HEATER.*
FIG.1
YES
TEST COMPLETE.
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
349
ProCarManuals.com