2000 CHRYSLER CARAVAN ignition

TEST NTC-4ACHECKING THE PCM POWER AND GROUNDS
Perform TEST NTC-1A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
NOTE: THE BATTERY
START TEST MUST BE FULLY
NTC-4A. CHARGED TO PERFORM
THIS TEST.
TURN IGNITION OFF. WITH AN OHMMETER,
DISCONNECT THE ECM MEASURE ECM IS THE RESISTANCE NO REPAIR THE OPEN
HARNESS HARNESS CONNECTOR BELOW 5.0 OHMS FOR GROUND CIRCUIT.*
CONNECTORS.** CAVITIES 1 AND 27 ALL MEASUREMENTS?
TO GROUND. FIG.1
YES
PROBE DIESEL POWER
USE A TEST LIGHT RELAY CONNECTOR DOES THE TEST NO REPAIR OPEN
IN THE FOLLOWING CAVITY (PDC) 3(30). LIGHT ILLUMINATE BATTERY SUPPLY TO
STEPS. BRIGHTLY? RELAY.
FIG.2
YES
REMOVE THE DIESEL 3(30) AND 5(87). DOES THE TEST
POWER RELAY. CONNECT WITH A TEST LIGHT, LIGHT ILLUMINATE NO REPAIR OPEN DIESEL
A JUMPER WIRE ACROSS PROBE ECM HARNESS BRIGHTLY FOR EACH POWER RELAY OUTPUT
RELAY CONNECTOR CONNECTOR CAVITIES CAVITY? CIRCUIT.*
(PDC) CAVITIES... 2 AND 28. FIG.2
YES
WITH A TEST LIGHT,
PROBE ECM HARNESS DOES THE TEST NO REPAIR THE OPEN
TURN IGNITION ON. CONNECTOR CAVITY 47. LIGHT ILLUMINATE FUSED IGNITION
BRIGHTLY? SWITCH CIRCUIT.*
FIG.1
YES
ECM GROUND
AND POWER
CIRCUITS ARE
OK. TEST
PASSED.
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TEST NTC-6ACHECKING ACCELERATOR PEDAL POSITION SENSOR CALIBRATION
Perform TEST NTC-1A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST
NTC-6A. TURN IGNITION ON.
USING A VOLTMETER, IS THE VOLTAGE
BACKPROBE ECM NOTE: THROTTLE BELOW 1.0 VOLTS NO REPLACE THE
HARNESS CONNECTOR MUST BE FULLY WITH THE THROTTLE ACCELERATOR PEDAL
CAVITY 24. CLOSED. FULLY CLOSED. POSITION SENSOR.*
YES
MONITOR THE
VOLTMETER WHILE WAS THE VOLTAGE NO REPLACE THE
SLOWLY OPENING THE CHANGE A SMOOTH ACCELERATOR PEDAL
THROTTLE TO WIDE TRANSITION? POSITION SENSOR.*
OPEN.
YES
WAS THE VOLTAGE AT NO REPLACE THE
WIDE OPEN THROTTLE ACCELERATOR PEDAL
ABOVE 4.0 VOLTS? POSITION SENSOR.*
YES
ACCEL. PEDAL
POS. SENSOR
OPERATING
NORMALLY. TEST
PASSED.
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TEST NTC-7ACHECKING BOOST PRESSURE SENSOR CALIBRATION
Perform TEST NTC-1A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST TURN IGNITION ON,
NTC-7A. ENGINE OFF.
USING THE DRB, IS THE VOLTAGE
READ BOOST BETWEEN NO REPLACE THE BOOST
PRESSURE SENSOR 1.7 AND 1.95 PRESSURE SENSOR.*
VOLTAGE. VOLTS?
YES
BOOST PRESSURE
SENSOR OPERATING
NORMALLY.
TEST PASSED.
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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.**
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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.
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TEST NTC-10BCHECKING THE FUEL HEATER AND THE CRANKCASE VENT HEATER
Perform TEST NTC-10A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST
NTC-10B. TURN IGNITION OFF.
REPLACE FUSE #16.
NO
TURN IGNITION ON IS THE FUSE OPEN? TEST COMPLETE.*
AND INSPECT FUSE
#16.
YES
CONNECT A JUMPER
REMOVE FUEL HEATER WIRE ACROSS FUEL
RELAY. HEATER RELAY
CAVITIES 30 & 87
(IN PDC). FIG. 1
REPLACE FUSE #6 NO REPLACE THE FUEL
IS THE FUSE OPEN? HEATER RELAY.*
TURN IGNITION ON.
YES
KEY OFF. REPLACE FUSE #16 AND
TURN IGNITION ON. NO REPLACE THE FUEL
DISCONNECT THE IS THE FUSE OPEN? HEATER.*
FUEL HEATER INSPECT FUSE #16.
HARNESS CONNECTOR.
YES
KEY OFF. REPLACE FUSE #16 AND
DISCONNECT THE TURN IGNITION ON. NO REPLACE THE
CRANKCASE VENT IS THE FUSE OPEN? CRANKCASE VENT
HEATER HARNESS INSPECT FUSE #16. HEATER.*
CONNECTOR.
YES
REPAIR THE FUEL
HEATER RELAY
OUTPUT CIRCUIT FOR
A SHORT TO
GROUND.*
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TEST NTC-11ACHECKING RADIATOR FAN OPERATION
Perform TEST NTC-1A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST INSTALL DRB. TURN
NTC-11A. IGNITION ON.
OBSERVE THE LEFT
PERFORM THE SIDE AND RIGHT DO BOTH FANS CYCLE YES PERFORM TEST
"LOW SPEED RAD FAN" SIDE RAD FAN ON AND OFF? NTC-11B.
ACTUATOR TEST. OPERATION.
NO
DID EITHER FAN NO PERFORM TEST
CYCLE? NTC-11C.
YES
DID LEFT SIDE FAN NO CONTINUE TEST
CYCLE? NTC-11A ON THE
NEXT PAGE.
YES
PERFORM TEST
NTC-11D.
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TEST NTC-11ACONTINUED - CHECKING RADIATOR FAN OPERATION
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST NTC-11A
CONTINUED FROM
THE PREVIOUS TURN IGNITION OFF.
PAGE.
KEY ON. REPAIR SHORT TO
REMOVE RAD FAN DOES THE LEFT SIDE YES GROUND IN RAD FAN
RELAY #1.** USING THE DRB, RAD FAN CYCLE ON GROUND CKT. BETWEEN
ACTUATE LOW SPEED AND OFF? LEFT SIDE RAD FAN
RAD FAN. AND RELAY #1*
NO
KEY OFF. USE AN BETWEEN RAD FAN
OHMMETER IN THE RELAY #1 TERMINALS IS THE RESISTANCE YES REPLACE THE RAD
FOLLOWING STEPS. 30 AND 87. BELOW 5.0 OHMS? FAN RELAY #1.*
MEASURE THE
RESISTANCE... FIG.1
NO
DISCONNECT THE MEASURE RESISTANCE REPAIR THE SHORT
RIGHT SIDE RAD FAN BETWEEN RAD FAN IS THE RESISTANCE YES TO GROUND IN THE
HARNESS RELAY #1 HARNESS BELOW 5.0 OHMS? RAD FAN RELAY #3
CONNECTOR.** CONNECTOR CAVITY 5 OUTPUT CIRCUIT.*
AND GROUND. FIG.2
NO
REPLACE THE RIGHT
SIDE RADIATOR
FAN.*
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