2000 CHRYSLER CARAVAN check engine

TEST TC-58ACONTINUED - REPAIRING - INDUCTIVE AUXILIARY SPEED SENSOR PLAUSIBILITY
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TURN IGNITION OFF.
TEST TC-58A DISCONNECT THE
CONTINUED FROM NEEDLE MOVEMENT
PREVIOUS PAGE. SENSOR HARNESS
CONNECTOR.**
INSPECT THE NEEDLE THE SENSOR HARNESS IS THERE ANY
MOVEMENT SENSOR AND ENGINE DAMAGE OR YES REPAIR AS
CONNECTOR HARNESS. CORROSION AT NECESSARY.*
TERMINALS AT EITHER HARNESS
BOTH.... FIG. 1 AND 2 CONNECTOR?
NO
CHECK THE WIRING THIS INTERFERENCE
HARNESS FOR COULD BE CAUSED BY IS THE WIRING YES REPAIR AS
MIS-ROUTING THAT LARGE CURRENT HARNESS NECESSARY.*
COULD INDUCE CARRYING WIRES OR MIS-ROUTED?
INTERFERENCE. THE ALTERNATOR.
NO
DISCONNECT THE ECM THE NEEDLE REPAIR THE OPEN IN
HARNESS MOVEMENT SENSOR IS THE RESISTANCE YES THE NEEDLE
CONNECTORS.** USING SIGNAL CIRCUIT. ABOVE 5.0 OHMS? MOVEMENT SENSOR
AN OHMMETER, MEASURESIGNAL CIRCUIT.*
THE RESISTANCE OF... FIG.3
NO
REPLACE THE NEEDLE START AND OPERATE
MOVEMENT SENSOR. THE ENGINE FROM DOES THIS CODE YES REPLACE THE ENGINE
RECONNECT ALL IDLE TO 3500 RPM RESET? CONTROL MODULE.*
CONNECTORS. KEY ON WHILE MONITORING
ERASE CODES. THE DRB.
NO
TEST COMPLETE.*
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
211
ProCarManuals.com

TEST TC-59AREPAIRING - INDUCTIVE AUXILIARY SPEED SENSOR STATIC PLAUSIBILITY
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST USING THE DRB,
TC-59A. ERASE CODES.
START THE ENGINE.
VARY THE ENGINE MONITOR THE DRB DOES THE DRB YES CONTINUE TEST
SPEED FROM IDLE TO DISPLAY. DISPLAY THIS CODE? TC-59A ON THE
3500 RPM SEVERALNEXT PAGE.
TIMES.
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.
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
213
ProCarManuals.com

TEST TC-59ACONTINUED - REPAIRING - INDUCTIVE AUXILIARY SPEED SENSOR STATIC
PLAUSIBILITY
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-59A TURN IGNITION OFF.
CONTINUED FROM DISCONNECT THE
THE PREVIOUS NEEDLE MOVEMENT
PAGE. SENSOR HARNESS
CONNECTOR.*
INSPECT THE NEDLE THE SENSOR HARNESS
MOVEMENT SENSOR AND THE ENGINE IS THERE DAMAGE OR YES REPAIR AS
CONNECTOR AT HARNESS. CORROSION AT NECESSARY.*
BOTH... EITHER HARNESS?
FIG.1 AND 2.
NO
CHECK THE WIRING THIS INTERFERENCE
HARNESS FOR COULD BE CAUSED BY IS THE WIRING YES REAPIR AS
MIS-ROUTING THAT LARGE CURRENT HARNESS NECESSARY.*
COULD CAUSE CARRYING WIRES OR MIS-ROUTED?
INTERFERNCE. THE ALTERNATOR.
NO
USING AN OHMMETER, REPAIR THE OPEN IN
DISCONNECT THE ECM MEASURE THE NEEDLE IS THE RESISTANCE YES THE NEEDLE
HARNESS MOVEMENT SENSOR ABOVE 5.0 OHMS? MOVEMENT SENSOR
CONNECTORS.** SIGNAL CIRCUIT. SIGNAL CIRCUIT.*
FIG.3
NO
REPLACE THE NEEDLE START AND OPERATE
MOVEMENT SENSOR. THE ENGINE FROM DOES THE CODE YES REPLACE THE ENGINE
RECONNECT ALL IDLE TO 3500 RPM RESET? CONTROL MODULE.*
CONNECTORS. KEY WHILE MONITORING
ON. ERASE CODES. THE DRB.
NO
TEST COMPLETE.*
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
215
ProCarManuals.com

TEST TC-62ACONTINUED - REPAIRING - INTAKE AIR TEMPERATURE SENSOR SIGNAL HIGH
EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-62A KEY OFF.
CONTINUED FROM DISCONNECT THE
THE PREVIOUS BOOST PRESSURE
PAGE. SENSOR HARNESS
CONNECTOR.**
WITH A JUMPER WIRE, TURN IGNITION ON.
DISCONNECT THE ECM REMOVE THE DIESEL CONNECT DIESEL POWER
HARNESS POWER RELAY.** RELAY CONN. CAVITIES USE A VOLTMETER IN
CONNECTORS.** 30 AND 87 (IN PDC). THE FOLLOWING
FIG.1 STEP.
MEASURE THE IAT REPAIR THE INTAKE
SENSOR SIGNAL IS THE VOLTAGE YES AIR TEMPERATURE
CIRCUIT. ABOVE 1.0 VOLT? SENSOR SIGNAL
CIRCUIT FOR A
FIG.2 SHORT TO VOLTAGE.*
NO
KEY OFF. USING AN OHMMETER, REPAIR THE OPEN
MEASURE THE IAT IS THE RESISTANCE NO INTAKE AIR
REMOVE THE JUMPER SENSOR SIGNAL BELOW 5.0 OHMS? TEMPERATURE SENSOR
WIRE. CIRCUIT. SIGNAL CIRCUIT.*
FIG.3
YES
CONNECT A JUMPER DOES THE DRB
BETWEEN THE INTAKE WITH THE DRB, DISPLAY "INTAKE YES REPLACE THE BOOST
AIR TEMP SENSOR ERASE AND THEN AIR TEMPERATURE PRESSURE SENSOR.*
SIGNAL AND SENSOR READ CODES. SENSOR LOW
GROUND CKT. FIG.1 EXCEEDED"?
NO
MOVE THE JUMPER DOES THE DRB
WIRE FROM THE WITH THE DRB, READ DISPLAY "INTAKE YES REPAIR THE OPEN
SENSOR GROUND TO CODES. AIR TEMPERATURE SENSOR GROUND
AN ENGINE GROUND. SENSOR LOW CIRCUIT.*
EXCEEDED"?
NO
REPLACE THE ENGINE
CONTROL MODULE.*
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
219
ProCarManuals.com

TEST TC-72ACONTINUED - REPAIRING - NEEDLE MOVEMENT SENSOR SRC HIGH EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-72A KEY OFF.
CONTINUED FROM DISCONNECT THE
THE PREVIOUS NEEDLE MOVEMENT
PAGE. SENSOR HARNESS
CONNECTOR.**
CONNECT A JUMPER DOES THE DRB
BETWEEN THE NEEDLE WITH THE DRB, READ DISPLAY "NEEDLE YES REPLACE THE NEEDLE
SENSOR SIGNAL AND CODES. MOVEMENT SENSOR MOVEMENT SENSOR.*
SENSOR GROUND CKT. SRC LOW EXCEEDED"?
FIG.1
NO
MOVE THE JUMPER DOES THE DRB
WIRE FROM THE WITH THE DRB, READ DISPLAY "NEEDLE YES REPAIR THE OPEN
SENSOR GROUND TO CODES. MOVEMENT SENSOR SENSOR GROUND
AN ENGINE GROUND. SRC LOW EXCEEDED"? CIRCUIT.*
NO
KEY OFF. WITH A JUMPER WIRE,
DISCONNECT THE ECM REMOVE THE DIESEL CONNECT DIESEL POWER
HARNESS POWER RELAY. RELAY CONN. CAVITIES
CONNECTORS.** 30 AND 87 (IN PDC).
FIG.2
KEY ON. MEASURE REPAIR THE SHORT
USE A VOLTMETER IN THE NEEDLE IS THE VOLTAGE YES TO VOLTAGE ON THE
THE FOLLOWING MOVEMENT SENSOR ABOVE 0.5 VOLT? NEEDLE MOVEMENT
STEP. SIGNAL CIRCUIT. SENSOR SIGNAL
FIG.1 CIRCUIT.*
NO
KEY OFF. MEASURE THE NEEDLE
MOVEMENT SENSOR IS THE RESISTANCE YES REPLACE THE ENGINE
USE AN OHMMETER IN SIGNAL CIRCUIT. BELOW 5.0 OHMS? CONTROL MODULE.*
THE FOLLOWING
STEP. FIG.3
NO
REPAIR THE OPEN
NEEDLE MOVEMENT
SENSOR SIGNAL
CIRCUIT.*
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
227
ProCarManuals.com

TEST TC-73ACONTINUED - REPAIRING - NEEDLE MOVEMENT SENSOR SRC LOW EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-73A DOES THE DRB
CONTINUED FROM DISCONNECT THE DISPLAY "NEEDLE YES REPLACE THE NEEDLE
THE PREVIOUS NEEDLE MOVEMENT MOVEMENT SENSOR MOVEMENT SENSOR.*
PAGE. SENSOR.** SRC HIGH
EXCEEDED"?
NO
KEY OFF. USING AN OHMMETER, REPAIR THE NEEDLE
DISCONNECT THE ECM MEASURE THE NEEDLE IS THE RESISTANCE YES MOVEMENT SENSOR
HARNESS MOVEMENT SENSOR BELOW 5.0 OHMS? SIGNAL CIRCUIT FOR
CONNECTORS.** SIGNAL CIRCUIT TO A SHORT TO
GROUND. FIG.1 GROUND.*
NO
WITH AN OHMMETER NEEDLE MOVEMENT REPAIR THE NEEDLE
MEASURE THE SENSOR SIGNAL IS THE RESISTANCE YES MOVEMENT SENSOR
RESISTANCE BETWEEN CIRCUIT AND SENSOR BELOW 5.0 OHMS? SIGNAL CIRCUIT
THE... GROUND CIRCUIT. SHORTED TO THE
FIG.1 SENSOR GND CIRCUIT.*
NO
REPLACE THE ENGINE
CONTROL MODULE.*
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
231
ProCarManuals.com

TEST TC-74AREPAIRING - REDUNDANT EMERGENCY STOP PLAUSIBILITY IN AFTER-RUN
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TURN IGNITION ON,
ENGINE OFF. USING
THE DRB READ ECM
CODES.
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
233
ProCarManuals.com

TEST TC-74ACONTINUED - REPAIRING - EMERGENCY STOP PLAUSIBILITY IN AFTER-RUN
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-74A KEY OFF.
CONTINUED FROM DISCONNECT THE REMOVE THE DIESEL
THE PREVIOUS FUEL PUMP AND ECM POWER RELAY.**
PAGE. HARNESS
CONNECTORS.**
WITH A JUMPER WIRE, KEY ON. USING A REPAIR THE FUEL
CONNECT DIESEL POWER VOLTMETER, MEASURE IS THE VOLTAGE YES SHUTDOWN SOLENOID
RELAY CONN. CAVITIES THE FUEL SHUTDOWN ABOVE 1.0 VOLT? CONTROL CIRCUIT
30 AND 87 (IN PDC). SOL CONTROL CKT. FOR A SHORT TO
FIG.1 FIG.2 VOLTAGE.*
NO
RECONNECT THE
ENGINE CONTROL KEY ON. USING DRB
MODULE HARNESS ACTUATE THE "FUEL
CONNECTORS. SHUT-OFF SOL."
WITH THE DRB FUEL PUMP HARNESS DOES VOLTMETER
ACTUATING THE CONNECTOR CAVITY 6. CHANGE FROM YES REPLACE FUEL PUMP
SOLENOID, USE A BATTERY VOLTAGE TO ASSEMBLY.*
VOLTMETER TO BELOW 1.0 VOLT?
PROBE... FIG.2
NO
NOTE: BEFORE
REPLACING 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.*
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
235
ProCarManuals.com