2000 CHRYSLER CARAVAN Service Manual

TEST NTC-8ACHECKING FUEL TEMPERATURE SENSOR CALIBRATION
Perform TEST NTC-1A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY ON, ENGINE START AND IDLE THE
START TEST OFF. USING THE ENGINE UNTIL
NTC-8A. DRB, MONITOR THE ENGINE TEMPERATURE
ECT SENSOR INPUT. REACHES 70*C
(160*F).
NOTE: IF ENGINE TEMP USING THE DRB, IS THE FUEL
IS ABOVE 70*C READ THE FUEL TEMPERATURE NO REPLACE THE FUEL
(160*F), ALLOW THE TEMPERATURE SENSOR BETWEEN INJECTION PUMP
ENGINE TO COOL DOWN INPUT. 20*C (70*F) AND ASSEMBLY.*
TO 70*C (160*F). 50*C (120*F)?
YES
COMPARE THE ECT START THE ENGINE DOES THE FUEL TEMP
AND FUEL AND ALLOW IT TO SENSOR READING NO REPLACE THE FUEL
TEMPERATURE SENSOR REACH OPERATING INCREASE STEADILY INJECTION PUMP
INPUTS IN THE TEMPERATURE OF TO 38-60*C ASSEMBLY.*
FOLLOWING STEP. 80*C (195*F). (100-140*F)?
YES
FUEL
TEMPERATURE
SENSOR OPERATING
NORMALLY.
TEST PASSED.
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
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TEST NTC-9ACHECKING EGR SYSTEM
Perform TEST NTC-1A Before Proceeding
FIG.1
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
340
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TEST NTC-9ACHECKING EGR SYSTEM
Perform TEST NTC-1A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START THE ENGINE.
INSTALL THE DRB
AND ACTUATE THE
EGR SOLENOID FOR
2 MINUTES.
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
341
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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
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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.**
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
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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
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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.
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
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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
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