2000 CHRYSLER CARAVAN Service Manual

TEST NTC-1ANO TROUBLE CODE TEST MENU
SYMPTOM DIAGNOSTIC TEST ROUTINE
HARD START NTC-2A, 3A, 4A, 5A, 6A, 7A, 8A, 10A
START AND STALL NTC-2A, 3A, 4A, 5A, 6A, 7A, 8A, 10A
HESITATION/SAG/STUMBLE NO TROUBLE CODE COMPLETE TEST (STEP 1)
SURGE NTC-3A, 4A, 5A, 6A, 7A, 8A, 9A
LACK OF POWER/SLUGGISH NTC-3A, 4A, 5A, 6A, 7A, 8A, 9A, 10A
PRE-IGNITION/DETONATION NO TROUBLE CODE COMPLETE TEST (STEP 1)
CUTS OUT/MISSES NTC-3A, 4A, 5A, 6A, 7A, 8A, 9A, 11A
BACKFIRE/POPBACK NTC-3A, 4A, 5A, 6A, 7A, 8A, 9A, 11A
RUNS ROUGH/UNSTABLE/ NO TROUBLE CODE COMPLETE TEST
ERRATIC IDLE (STEP 1)
POOR FUEL ECONOMY NO TROUBLE CODE COMPLETE TEST
(STEP 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-2ACHECKING GLOW PLUG OPERATION
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
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TEST NTC-2ACHECKING GLOW PLUG OPERATION
Perform TEST NTC-1A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
THE 2.5L DIESEL GLOW PLUG RELAY #1 GLOW PLUG RELAY #2
START TEST ENGINE UTILIZES SUPPLIES POWER TO SUPPLIES POWER TO
NTC-2A. TWO GLOW PLUG THE GLOW PLUGS IN THE GLOW PLUGS IN
RELAYS... CYLINDERS #1 & #4. CYLINDERS #2 & #3.
PERFORM THIS TEST
ON GLOW PLUG RELAY
#1 THEN REPEAT TURN IGNITION OFF.
TEST FOR GLOW PLUG
RELAY #2.
DISCONNECT EACH KEY ON. USING THE
GLOW PLUG HARNESS DRB, ACTUATE THE
CONNECTOR. GLOW PLUG RELAY.
USING A TEST
LIGHT, PROBE THE DOES THE TEST NO TEST NTC-2A
APPROPRIATE GLOW LIGHT FLASH ON AND CONTINUED ON
PLUG HARNESS CONN. OFF? THE NEXT PAGE.
FIG.1 AND 2
YES
GLOW PLUG CIRCUITRY
OK. REFER TO SERVICE
MANUAL TO CHECK GLOW TEST COMPLETE.*
PLUG OPERATION.
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
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TEST NTC-2ACONTINUED - CHECKING GLOW PLUG OPERATION
FIG.1
FIG.2
FIG.3
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
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TEST NTC-2ACONTINUED - CHECKING GLOW PLUG OPERATION
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
REPAIR THE OPEN
FUSED B (+)
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
327
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TEST NTC-3ACHECKING FUEL INJECTION PUMP CIRCUITS
Perform TEST NTC-1A Before Proceeding
FIG.1
FIG.2
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
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TEST NTC-3ACHECKING FUEL INJECTION PUMP CIRCUITS
Perform TEST NTC-1A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
THIS TEST SHOULD BE
START TEST PERFORMED BEFORE
NTC-3A. REPLACING THE ECM
DURING FAULT CODE
DIAGNOSTICS.
NOTE: THIS TEST DISCONNECT THE
CHECKS FOR SHORTED FUEL INJECTION
CIRCUITS INTERNAL TO PUMP 10-WAY
THE FUEL INJECTION HARNESS
PUMP ASSEMBLY. CONNECTOR.**
THESE MEASUREMENTS
USE AN OHMMETER ARE PERFORMED ON
FOR THE FOLLOWING THE FUEL INJECTION
MEASUREMENTS. PUMP CONNECTOR.
FIG.1
IS THE RESISTANCE
PERFORM RESISTANCE BELOW 100.0 OHMS YES REPLACE THE FUEL
MEASUREMENTS. FOR ANY OF THE INJECTION PUMP
MEASUREMENTS? ASSEMBLY.*
FIG.2
NO
TEST COMPLETED.
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
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TEST NTC-4ACHECKING THE PCM POWER AND GROUNDS
Perform TEST NTC-1A Before Proceeding
FIG.1
FIG.2
N
O
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
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