key CHRYSLER CARAVAN 2000 Owner's Guide

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-38ACONTINUED - REPAIRING - ENGINE SPEED SENSOR STATIC PLAUSIBILITY
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY OFF.
TEST TC-38A 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 THE ENGINE SPEED BELOW 5.0 OHMS? ENGINE SPEED
STEPS. SENSOR SIGNAL CKT. SENSOR CKT.*
FIG. 1
NO
MEASURE RESISTANCE REPAIR THE ENGINE
BETWEEN ENGINE SPEED IS THE RESISTANCE YES SPEED SENSOR
SENSOR SIGNAL CKT BELOW 5.0 OHMS? CIRCUIT FOR A
AND SENSOR GROUND. SHORT TO SENSOR
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. RECONNECT USING A VOLTMETER TO WITH ENGINE RUNNING,
THE ECM AND ENGINE MEASURE FREQUENCY, IS FREQUENCY BETWEEN YES REPLACE THE ENGINE
SPEED SENSOR BACKPROBE ECM 44 AND 64HZ AT 850 CONTROL MODULE.*
HARNESS HARNESS CONNECTOR RPM AND 150 AND
CONNECTORS. CAVITY 67. FIG.2 190HZ AT 2500 RPM?
NO
REPLACE THE ENGINE
SPEED SENSOR.*
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TEST TC-39AREPAIRING - FAN CONTROL OPEN CIRCUIT FAN 1
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY ON. IS THE RADIATOR
START TEST WITH THE DRB, FAN #2 RELAY NO CONTINUE TEST
TC-39A. ACTUATE THE LOW CLICKING ON AND TC-39A ON THE
SPEED RADIATOR OFF? NEXT PAGE.
FAN.
YES
THE CONDITION TO SET USING THE SCHEMATIC
THE TROUBLE CODE IS AS A GUIDE, INSPECT WERE ANY PROBLEMS YES REPAIR AS
NOT PRESENT. THE WIRING AND FOUND? NECESSARY.*
CONNECTORS.
FIG.1 FIG.2
NO
WIGGLE THE WIRING REPAIR AS NECESSARY
HARNESS FROM THE NOTE: THE DRB MUST DID THE WIGGLING YES WHERE WIGGLING
RELAY TO THE STILL BE ACTUATING INTERRUPT FAN CAUSED FAN RELAY
ENGINE CONTROL THE FAN RELAY. RELAY CLICKING? CLICKING TO BE
MODULE.INTERRUPTED.*
NO
REFER TO GENERAL
INFORMATION 3.3.2
FOR ADDITIONAL TEST COMPLETED.*
INFORMATION ON
INTERMITTENT CODES.
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TEST TC-39ACONTINUED - REPAIRING - FAN CONTROL OPEN CIRCUIT FAN 1
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-39A TURN IGNITION OFF.
CONTINUED FROM
THE PREVIOUS REMOVE RADIATOR
PAGE. FAN RELAY #2.**
TURN IGNITION ON. MEASURE THE DIESEL
POWER RELAY OUTPUT IS THE VOLTAGE NO REPAIR THE OPEN
USE A VOLTMETER IN CIRCUIT. ABOVE 10.0 VOLTS? DIESEL POWER RELAY
THE FOLLOWINGOUTPUT CIRCUIT.*
STEP. FIG.1
YES
TURN IGNITION OFF. MEASURE THE
RESISTANCE BETWEEN IS THE RESISTANCE NO REPLACE RADIATOR
USE AN OHMMETER IN TERMINALS 85 AND 86 BELOW 100.0 OHMS? FAN RELAY #2.*
THE FOLLOWING OF THE #2 RELAY.
STEPS. FIG.2
YES
KEY OFF. MEASURE THE REPAIR THE LOW
DISCONNECT THE ECM RESISTANCE BETWEEN IS THE RESISTANCE YES SPEED FAN CONTROL
HARNESS GROUND AND ECM BELOW 5.0 OHMS? CKT FOR A SHORT TO
CONNECTORS.** HARNESS CONNECTOR GROUND.*
CAVITY 17. FIG.3
NO
MEASURE THE FROM THE RELAY TO
RESISTANCE OF THE ECM HARNESS IS THE RESISTANCE NO REPAIR OPEN LOW
LOW SPEED FAN CONNECTOR CAVITY 17. BELOW 5.0 OHMS? SPEED FAN CONTROL
CONTROL CIRCUIT... CIRCUIT.*
FIG.1 AND 3
YES
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST TC-40AREPAIRING - FAN CONTROL OPEN CIRCUIT FAN 2
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY ON. ARE THE RADIATOR
START TEST WITH THE DRB, FAN RELAYS #1 AND NO CONTINUE TEST
TC-40A. ACTUATE THE HIGH #3 CLICKING ON AND TC-40A ON THE
SPEED RADIATOR OFF? NEXT PAGE.
FAN.
YES
THE CONDITION TO SET USING THE SCHEMATIC
THE TROUBLE CODE IS AS A GUIDE, INSPECT WERE ANY PROBLEMS YES REPAIR AS
NOT PRESENT. THE WIRING AND FOUND? NECESSARY.*
CONNECTORS.
FIG.1 FIG.2
NO
WIGGLE THE WIRING REPAIR AS
HARNESS FROM THE NOTE: THE DRB MUST DID THE WIGGLING YES NECESSARY WHERE
RELAYS TO THE STILL BE ACTUATING INTERRUPT FAN WIGGLING CAUSED
ENGINE CONTROL THE FAN RELAY. RELAY CLICKING? RELAY CLICKING TO
MODULE.BE INTERRUPTED.*
NO
REFER TO GENERAL
INFORMATION 3.3.2
FOR ADDITIONAL TEST COMPLETED.*
INFORMATION ON
INTERMITTENT CODES.
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TEST TC-40ACONTINUED - REPAIRING - FAN CONTROL OPEN CIRCUIT FAN 2
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-40A TURN IGNITION OFF.
CONTINUED FROM
THE PREVIOUS REMOVE RADIATOR FAN
PAGE. RELAYS #1 AND #3.**
TURN IGNITION ON. MEASURE THE DIESEL IS THE VOLTAGE
POWER RELAY OUTPUT ABOVE 10.0 VOLTS NO REPAIR THE OPEN
USE A VOLTMETER IN CIRCUIT AT EACH FOR EACH DIESEL POWER RELAY
THE FOLLOWING RELAY CONNECTOR. MEASUREMENT? OUTPUT CIRCUIT.*
STEP. FIG.1 AND 2
YES
TURN IGNITION OFF. MEASURE THE IS THE RESISTANCE REPLACE THE
RESISTANCE BETWEEN BELOW 100.0 OHMS NO RADIATOR FAN RELAY
USE AN OHMMETER IN TERMINALS 85 AND FOR EACH THAT MEASURED
THE FOLLOWING 86 OF THE #1 AND MEASUREMENT? ABOVE 100.0 OHMS.*
STEPS. #3 RELAYS. FIG.3
YES
KEY OFF. MEASURE THE REPAIR THE HIGH
DISCONNECT THE ECM RESISTANCE BETWEEN IS THE RESISTANCE YES SPEED FAN CONTROL
HARNESS GROUND AND ECM BELOW 5.0 OHMS? CKT FOR A SHORT TO
CONNECTORS.** HARNESS CONNECTOR GROUND.*
CAVITY 41. FIG.4
NO
MEASURE THE FROM EACH RELAY TO
RESISTANCE OF THE ECM HARNESS IS THE RESISTANCE NO REPAIR OPEN HIGH
HIGH SPEED FAN CONNECTOR CAVITY 41. BELOW 5.0 OHMS FOR SPEED FAN CONTROL
CONTROL CIRCUIT... EACH MEASUREMENT? CIRCUIT.*
FIG.1, 2 AND 4
YES
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST TC-41AREPAIRING - FAN CONTROL SHORT CIRCUIT FAN 1
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY ON. IS THE RADIATOR
START TEST WITH THE DRB, FAN #2 RELAY NO CONTINUE TEST
TC-41A. ACTUATE THE LOW CLICKING ON AND TC-41A ON THE
SPEED RADIATOR OFF? NEXT PAGE.
FAN.
YES
THE CONDITION TO SET USING THE SCHEMATIC
THE TROUBLE CODE IS AS A GUIDE, INSPECT WERE ANY PROBLEMS YES REPAIR AS
NOT PRESENT. THE WIRING AND FOUND? NECESSARY.*
CONNECTORS.
FIG.1 FIG.2
NO
WIGGLE THE WIRING REPAIR AS NECESSARY
HARNESS FROM THE NOTE: THE DRB MUST DID THE WIGGLING YES WHERE WIGGLING
RELAY TO THE STILL BE ACTUATING INTERRUPT FAN CAUSED FAN RELAY
ENGINE CONTROL THE FAN RELAY. RELAY CLICKING. CLICKING TO BE
MODULE.INTERRUPTED.*
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETED.*
INFORMATION ON
INTERMITTENT CODES.
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TEST TC-42AREPAIRING - FAN CONTROL SHORT CIRCUIT FAN 2
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY ON. ARE THE RADIATOR
START TEST WITH THE DRB, FAN RELAYS #1 AND NO CONTINUE TEST
TC-42A. ACTUATE THE HIGH #3 CLICKING ON AND TC-42A ON THE
SPEED RADIATOR OFF? NEXT PAGE.
FAN.
YES
THE CONDITION TO SET USING THE SCHEMATIC
THE TROUBLE CODE IS AS A GUIDE, INSPECT WERE ANY PROBLEMS YES REPAIR AS
NOT PRESENT. THE WIRING AND FOUND? NECESSARY.*
CONNECTORS.
FIG.1. FIG.2
NO
WIGGLE THE WIRING REPAIR AS
HARNESS FROM THE NOTE: THE DRB MUST DID THE WIGGLING YES NECESSARY WHERE
RELAYS TO THE STILL BE ACTUATING INTERRUPT FAN WIGGLING CAUSED
ENGINE CONTROL THE FAN RELAY. RELAY CLICKING? RELAY CLICKING TO
MODULE.BE INTERRUPTED.*
NO
REFER TO GENERAL
INFORMATION 3.3.2
FOR ADDITIONAL TEST COMPLETED.*
INFORMATION ON
INTERMITTENT CODES.
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TEST TC-47ACONTINUED - REPAIRING - FUEL TEMPERATURE SENSOR SRC HIGH EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-47A KEY OFF.
CONTINUED FROM DISCONNECT THE
THE PREVIOUS FUEL INJECTION
PAGE. PUMP HARNESS
CONNECTOR.**
KEY ON. MEASURE THE FUEL REPAIR THE FUEL
TEMP SENSOR SIGNAL IS THE VOLTAGE YES TEMP SENSOR SIGNAL
USE A VOLTMETER IN CIRCUIT. ABOVE 5.5 VOLTS? CKT FOR A SHORT TO
THE FOLLOWINGVOLTAGE. IF OK,
STEP. FIG.1 REPLACE THE ECM.*
NO
CONNECT A JUMPER DOES THE DRB
BETWEEN THE FUEL WITH THE DRB, DISPLAY "FUEL YES REPLACE THE FUEL
TEMPERATURE SENSOR ERASE AND THEN TEMPERATURE SENSOR INJECTION PUMP
SIGNAL AND SENSOR READ CODES. LOW EXCEEDED"? ASSEMBLY.*
GROUND CKT. FIG.1
NO
MOVE THE JUMPER DOES THE DRB
WIRE FROM THE WITH THE DRB, READ DISPLAY "FUEL YES REPAIR THE OPEN
SENSOR GROUND TO CODES. TEMPERATURE SENSOR SENSOR GROUND
AN ENGINE GROUND. LOW EXCEEDED"? CIRCUIT.*
NO
KEY OFF. DISCONNECT MEASURE THE FUEL REPAIR THE OPEN
THE ECM HARNESS TEMPERATURE SENSOR IS THE RESISTANCE NO FUEL TEMPERATURE
CONNECTORS.** SIGNAL CIRCUIT. BELOW 5.0 OHMS? SENSOR SIGNAL
CIRCUIT.*
USING AN OHMMETER... FIG.2
YES
NOTE: BEFORE
REPLACING ECM, DID FUEL INJECTION YES REPLACE THE ENGINE
PERFORM TEST NTC-3A PUMP PASS TEST CONTROL MODULE.*
TO CHECK INTERNAL NTC-3A?
FUEL PUMP CIRCUITRY.
NO
REPLACE THE FUEL
INJECTION PUMP
ASSEMBLY.*
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TEST TC-48ACONTINUED - REPAIRING - FUEL TEMPERATURE SENSOR SRC LOW EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-48A KEY OFF.
CONTINUED FROM DISCONNECT THE
THE PREVIOUS FUEL INJECTION
PAGE. PUMP HARNESS
CONNECTOR.**
DOES THE DRB
WITH THE DRB, DISPLAY "FUEL YES REPLACE THE FUEL
ERASE AND THEN TEMPERATURE SENSOR INJECTION PUMP
READ CODES. HIGH EXCEEDED"? ASSEMBLY.*
NO
KEY OFF. USING AN OHMMETER, REPAIR THE FUEL
DISCONNECT THE ECM MEASURE THE FUEL IS THE RESISTANCE YES TEMPERATURE SENSOR
HARNESS TEMPERATURE SENSOR BELOW 5.0 OHMS? SIGNAL CIRCUIT FOR
CONNECTORS.** SIGNAL CIRCUIT TO A SHORT TO
GROUND. FIG.1 GROUND.*
NO
WITH AN OHMMETER FUEL INJECTION PUMP REPAIR THE FUEL
MEASURE THE HARNESS CONNECTOR IS THE RESISTANCE YES TEMPERATURE SENSOR
RESISTANCE BETWEEN CAVITIES 4 AND 7. BELOW 5.0 OHMS? SIGNAL CIRCUIT
THE... SHORTED TO THE
FIG.1 SENSOR GND CIRCUIT.*
NO
NOTE: BEFORE
REPLACING THE ECM, DID THE FUEL YES REPLACE THE ENGINE
PERFORM TEST NTC-3A INJECTION PUMP CONTROL MODULE.*
TO CHECK INTERNAL PASS TEST NTC-3A?
FUEL PUMP CIRCUITRY.
NO
REPLACE THE FUEL
INJECTION PUMP
ASSEMBLY.*
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