2000 CHRYSLER CARAVAN engine

TEST TC-36AREPAIRING - ENGINE SPEED SENSOR OVERSPEED RECOGNITION
Perform TEST DTC Before ProceedingT
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TEST TC-36AREPAIRING - ENGINE SPEED SENSOR OVERSPEED RECOGNITION
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
NOTE: THIS CODE
START TEST INDICATES THE ENGINE
TC-36A. SPEED SENSOR HAS
SEEN AN ENGINE SPEED
OF ABOVE 5400 RPM.
USING THE DRB,
CHECK FOR OTHER ARE ANY OTHER YES REPAIR OTHER CODES
ENGINE SPEED CODES SET? FIRST.*
SENSOR CODES.
NO
CHECK ENGINE SPEED
WITH THE DRB, SENSOR WIRING FOR WERE ANY PROBLEMS YES REPAIR AS
ERASE THE CODE. INCORRECT ROUTING FOUND? NECESSARY.*
AND CONNECTIONS
WHICH MAY CAUSE EMI.
NO
DOES THE DRB
TEST DRIVE WITH THE DRB, READ DISPLAY "ENGINE NO
VEHICLE. TROUBLE CODES. SPEED SENSOR TEST COMPLETED.*
OVERSPEED
RECOGNITION"?
YES
TEST DRIVE THE DOES THE DRB
REPLACE THE ENGINE VEHICLE. WITH THE DISPLAY "ENGINE NO
SPEED SENSOR. DRB, READ TROUBLE SPEED SENSOR TEST COMPLETED.*
CODES. OVERSPEED
RECOGNITION"?
YES
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST TC-38AREPAIRING - ENGINE SPEED SENSOR STATIC PLAUSIBILITY
FIG.1
FIG.2
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TEST TC-38AREPAIRING - ENGINE SPEED SENSOR STATIC PLAUSIBILITY
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST ATTEMPT TO START DOES THE ENGINE NO CONTINUE TEST
TC-38A. AND IDLE THE START AND IDLE? TC-38A 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 & STATIC SET.*
HARNESS. FIG.1 PLAUSIBILITY"?
NO
AT THIS TIME, THE USING THE
CONDITION REQUIRED SCHEMATIC AS A WERE ANY PROBLEMS YES REPAIR AS
TO SET THE CODE IS GUIDE, INSPECT THE FOUND? NECESSARY.*
NOT PRESENT. WIRING AND
FIG.2 CONNECTORS.
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETE.*
INFORMATION ON
INTERMITTENT CODES.
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TEST TC-38ACONTINUED - REPAIRING - ENGINE SPEED SENSOR STATIC PLAUSIBILITY
FIG.1
FIG.2
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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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