2000 CHRYSLER CARAVAN Service Manual

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.
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
331
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TEST NTC-5ACHECKING ENGINE COOLANT SENSOR CALIBRATION AND RADIATOR FAN
OPERATION
Perform TEST NTC-1A Before ProceedingN
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
332
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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).
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
333
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TEST NTC-6ACHECKING ACCELERATOR PEDAL POSITION SENSOR CALIBRATION
Perform TEST NTC-1A Before ProceedingN
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
334
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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.
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
335
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TEST NTC-7ACHECKING BOOST PRESSURE SENSOR CALIBRATION
Perform TEST NTC-1A Before ProceedingN
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
336
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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.
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
337
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TEST NTC-8ACHECKING FUEL TEMPERATURE SENSOR CALIBRATION
Perform TEST NTC-1A Before ProceedingN
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
338
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