2000 CHRYSLER CARAVAN Service Manual

TEST TC-34AREPAIRING - EGR SHORT CIRCUIT
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST USING THE DRB, DOES THE DRB YES CONTINUE TEST
TC-34A. ERASE CODES. DISPLAY "EGR SHORT TC-34A ON THE
CIRCUIT"? NEXT PAGE.
NO
WHILE MONITORING THEREPAIR THE WIRING
DRB DISPLAY FOR DOES THE DRB YES OR CONNECTOR THAT
CODES, WIGGLE THE DISPLAY "EGR SHORT CAUSED THE CODE TO
EGR SOLENOID WIRING CIRCUIT"? SET.*
AND CONNECTORS.
NO
AT THIS TIME, THE USING THE SCHEMATIC
CONDITION REQUIRED AS A GUIDE, INSPECT WERE ANY PROBLEMS YES REPAIR AS
TO SET THE CODE IS THE WIRING AND FOUND? NECESSARY.*
NOT PRESENT. CONNECTORS.
FIG.1 FIG.2
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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TEST TC-34ACONTINUED - REPAIRING - EGR SHORT CIRCUIT
FIG.1
FIG.2
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TEST TC-34ACONTINUED - REPAIRING - EGR SHORT CIRCUIT
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY ON.
USING THE DRB,
ERASE CODES.USING THE DRB
DISPLAY ECM CODES.DOES THE DRB DISPLAY
``EGR SHORT
CIRCUIT''?
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TEST TC-35AREPAIRING - ENGINE SPEED SENSOR DYNAMIC PLAUSIBILITY
Perform TEST DTC Before Proceeding
FIG.1
FIG.2
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TEST TC-35AREPAIRING - ENGINE SPEED SENSOR DYNAMIC PLAUSIBILITY
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST ATTEMPT TO START DOES THE ENGINE NO CONTINUE TEST
TC-35A. AND IDLE THE START AND IDLE? TC-35A ON THE
ENGINE. NEXT PAGE.
YES
USE THE SCHEMATIC AS DOES THE DRB REPAIR THE HARNESS
WITH THE ENGINE A GUIDE AND WIGGLE DISPLAY "ENGINE YES OR CONNECTOR THAT
STILL RUNNING... THE ENGINE SPEED SPEED SENSOR CAUSED THE CODE TO
SENSOR CONNECTOR & DYNAMIC SET.*
HARNESS. FIG.1 PLAUSIBILITY"?
NO
AT THIS TIME, THE USING THE SCHEMATIC
CONDITION REQUIRED AS A GUIDE, INSPECT WERE ANY PROBLEMS REPAIR AS
TO SET THE CODE IS THE WIRING AND FOUND? NECESSARY.*
NOT PRESENT. CONNECTORS. YES
FIG.2 FIG.1
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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TEST TC-35ACONTINUED - REPAIRING - ENGINE SPEED SENSOR DYNAMIC PLAUSIBILITY
FIG.1
FIG.2
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TEST TC-35ACONTINUED - REPAIRING - ENGINE SPEED SENSOR DYNAMIC PLAUSIBILITY
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY OFF.
TEST TC-35A DISCONNECT ENGINE
CONTINUED FROM SPEED SENSOR AND
PREVIOUS PAGE. THE ECM HARNESS
CONNECTORS.**
MEASURE RESISTANCE REPAIR THE SHORT
USE AN OHMMETER IN BETWEEN GROUND AND IS THE RESISTANCE YES TO GROUND ON THE
THE FOLLOWING ENGINE SPEED BELOW 5.0 OHMS? ENGINE SPEED
STEPS. SENSOR SIGNAL CKT. SENSOR CKT.*
FIG.1
NO
MEASURE RESISTANCE REPAIR THE ENGINE
BETWEEN THE ENGINE IS THE RESISTANCE YES SPEED SENSOR
SPEED SENSOR SIGNAL BELOW 5.0 OHMS? CIRCUIT FOR A
CKT AND SENSOR SHORT TO SENSOR
GROUND. FIG.1 GROUND.*
NO
MEASURE THE
RESISTANCE OF THE IS THE RESISTANCE YES REPAIR THE OPEN
ENGINE SPEED ABOVE 5.0 OHMS? ENGINE SPEED
SENSOR CIRCUIT. SENSOR CKT.*
FIG.2
NO
WITH A JUMPER KEY ON. USING A REPAIR THE SHORT
WIRE, CONNECT ECM VOLTMETER, MEASURE IS THE VOLTAGE YES TO VOLTAGE ON THE
HARNESS CONNECTOR THE ENGINE SPEED ABOVE 0.5 VOLTS? ENGINE SPEED
CAVITY 33 TO SENSOR CIRCUIT. SENSOR CKT.*
GROUND. FIG.1
NO
KEY OFF. REMOVE USING A VOLTMETER TO WITH ENGINE RUNNING,
JUMPER WIRE. MEASURE FREQUENCY, IS FREQUENCY BETWEEN YES REPLACE THE ENGINE
RECONNECT ECM AND BACKPROBE ECM 44 AND 64HZ AT 850 CONTROL MODULE.*
ENGINE SPEED SENSOR HARNESS CONNECTOR RPM AND 150 AND
HARNESS CONNECTORS. CAVITY 67. FIG.2 190HZ AT 2500 RPM?
NO
REPLACE THE ENGINE
SPEED SENSOR.*
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TEST TC-36AREPAIRING - ENGINE SPEED SENSOR OVERSPEED RECOGNITION
Perform TEST DTC Before ProceedingT
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