CHRYSLER CARAVAN 2000 Service Manual

TEST TC-91ACONTINUED - REPAIRING - VEHICLE SPEED SENSOR TROUBLE CODES
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-91A
CONTINUED FROM IS THE VOLTAGE YES CONTINUE TEST
THE PREVIOUS ABOVE 6.0 VOLTS IN TC-91A ON THE
PAGE. THE PREVIOUS STEP? NEXT PAGE.
NO
KEY OFF. KEY ON.
USING A VOLTMETER, IS THE VOLTAGE YES REPLACE THE BODY
DISCONNECT THE BCM MEASURE THE VSS BETWEEN CONTROL MODULE.*
"B" HARNESS SIGNAL CKT. 4.0 AND 6.0 VOLTS?
CONNECTOR.** FIG.1
NO
KEY OFF. USING AN OHMMETER, REPAIR THE VSS
MEASURE BETWEEN IS THE RESISTANCE YES SIGNAL CIRCUIT FOR
DISCONNECT THE ECM VSS SIGNAL CKT AND BELOW 5.0 OHMS? A SHORT TO SENSOR
HARNESS SENSOR GROUND CKT. GROUND CIRCUIT.*
CONNECTORS.** FIG.1
NO
USING AN OHMMETER, REPAIR THE VSS
MEASURE BETWEEN IS THE RESISTANCE YES SIGNAL CIRCUIT FOR
VSS SIGNAL CKT AND BELOW 5.0 OHMS? A SHORT TO
GROUND. GROUND.*
FIG.1
NO
USING AN OHMMETER,
MEASURE THE THE VSS SENSOR AND IS THE RESISTANCE NO REPAIR THE OPEN
RESISTANCE OF THE THE ECM. BELOW 5.0 OHMS? VSS SIGNAL
VSS SIGNAL CKTCIRCUIT.*
BETWEEN... FIG.2
YES
REPLACE THE ENGINE
CONTROL MODULE.*
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
275
ProCarManuals.com

TEST TC-91ACONTINUED - REPAIRING - VEHICLE SPEED SENSOR TROUBLE CODES
FIG.1
FIG.1
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
276
ProCarManuals.com

TEST TC-91ACONTINUED - REPAIRING - VEHICLE SPEED SENSOR TROUBLE CODES
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-91A KEY OFF.
CONTINUED FROM
THE PREVIOUS DISCONNECT THE BCM
PAGE. "B" HARNESS
CONNECTOR.**
USING A VOLTMETER,
MEASURE THE VSS IS THE VOLTAGE YES REPLACE THE BODY
TURN IGNITION ON. SIGNAL CKT. BELOW 5.0 VOLTS? CONTROL MODULE.*
FIG.1
NO
KEY OFF.
REMOVE THE DIESEL
DISCONNECT THE ECM POWER RELAY.*
HARNESS
CONNECTORS.* FIG.2
WITH A JUMPER WIRE, KEY ON. USING A REPAIR THE VSS
CONNECT DIESEL POWER VOLTMETER, MEASURE IS THE VOLTAGE NO SIGNAL CIRCUIT FOR
RELAY CONNECTOR THE VSS SIGNAL CKT. ABOVE 1.0 VOLT? A SHORT TO
CAVITIES 30 AND 87 VOLTAGE.*
(IN PDC). FIG.2 FIG.1
YES
REPLACE THE ENGINE
CONTROL MODULE.*
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
277
ProCarManuals.com

TEST TC-91BREPAIRING - VEHICLE SPEED SENSOR TROUBLE CODES
Perform TEST TC-91A Before Proceeding
FIG.1
FIG.2
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
278
ProCarManuals.com

TEST TC-91BREPAIRING - VEHICLE SPEED SENSOR TROUBLE CODES
Perform TEST TC-91A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
USING THE DRB
START TEST RECONNECT THE VSS RAISE AND SUPPORT OSCILLOSCOPE
TC-91B. AND ECM HARNESS THE VEHICLE DRIVE FUNCTION SELECT
CONNECTORS. AXLE. "LAB SCOPE".
SET VOLTAGE RANGE USING THE
TO +10.0v. SET TIME RANGE TO OSCILLOSCOPE LEAD,
SET PROBE TO x10. 40ms/Div. BACKPROBE ECM
HARNESS CONNECTOR
FIG.1 FIG.2 CAVITY 51. FIG.3
START THE ENGINE. SHIFT TRANSMISSION
INTO FIRST GEAR
ENGAGE THE PARKING AND ALLOW THE
BRAKE. WHEELS TO ROTATE
AT IDLE SPEED.
NOTE: A VALID VSS DOES THE DRB
OBSERVE THE DRB SIGNAL WILL CYCLE DISPLAY THE 5.0 NO REPLACE THE
OSCILLOSCOPE HI TO LOW SIMILAR VOLT VSS SIGNAL VEHICLE SPEED
PATTERN. TO THE PATTERN CYCLING HI AND SENSOR.*
SHOWN IN FIGURE 2. LOW?
YES
REPLACE THE ENGINE
CONTROL MODULE.*
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
279
ProCarManuals.com

TEST TC-94AREPAIRING - VEHICLE THEFT ALARM TROUBLE CODES
Perform TEST DTC Before ProceedingT
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
280
ProCarManuals.com

TEST TC-94AREPAIRING - VEHICLE THEFT ALARM TROUBLE CODES
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
CHECK SKIS MODULE
START TEST FOR PROPER ARE THERE ANY SKIS YES PERFORM TEST
TC-94A. COMMUNICATION AND PROBLEMS? SK-1A.
TROUBLE CODES
BEFORE CONTINUING.
NO
USING THE DRB,
SELECT "ENGINE"
FROM THE MAIN
MENU.
DISPLAY THE DOES THE REPLACE THE ENGINE
VEHICLE COMPARE THE PROGRAMMED VIN NO CONTROL MODULE AND
IDENTIFICATION PROGRAMMED VIN TO MATCH THE VEHICLE PROGRAM THE
NUMBER (VIN). THE VEHICLE VIN. VIN? CORRECT VIN INTO
THE ECM.*
YES
USING THE DRB,
SELECT "BODY" THEN
"BODY COMPUTER".
DISPLAY THE DOES THE REPLACE THE BODY
VEHICLE COMPARE THE PROGRAMMED VIN NO CONTROL MODULE AND
IDENTIFICATION PROGRAMMED VIN TO MATCH THE VEHICLE PROGRAM THE
NUMBER (VIN). THE VEHICLE VIN. VIN? CORRECT VIN INTO
THE BCM.*
YES
CONTINUE TEST
TC-94A ON THE
NEXT PAGE.
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
281
ProCarManuals.com

TEST TC-94ACONTINUED - REPAIRING - VEHICLE THEFT ALARM TROUBLE CODES
FIG.1
FIG.2
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
282
ProCarManuals.com

TEST TC-94ACONTINUED - REPAIRING - VEHICLE THEFT ALARM TROUBLE CODES
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-94A
CONTINUED FROM
THE PREVIOUS TURN IGNITION OFF.
PAGE.
DISCONNECT THE
DISCONNECT THE ECM BODY CONTROL
HARNESS MODULE HARNESS
CONNECTORS.** CONNECTORS.**
USING AN OHMMETER, BETWEEN THE BCM
MEASURE RESISTANCE AND THE ECM. IS THE RESISTANCE YES REPAIR THE OPEN
OF THE IMMOBILIZER ABOVE 5.0 OHMS? IMMOBILIZER SIGNAL
SIGNAL CIRCUIT... CIRCUIT.*
FIG.1
NO
ENGINE CONTROL REPAIR THE
MEASURE RESISTANCE MODULE HARNESS IS THE RESISTANCE YES IMMOBILIZER SIGNAL
BETWEEN THE ... CONNECTOR CAVITY BELOW 5.0 OHMS? CIRCUIT FOR A
38 AND GROUND. SHORT TO GROUND.*
NO
WITH A JUMPER WIRE,
REMOVE THE DIESEL CONNECT DIESEL POWER
POWER RELAY.** RELAY CONN. CAVITIES
30 AND 87 (IN PDC).
FIG.2
USING A VOLTMETER, REPAIR THE
MEASURE ECM IS THE VOLTAGE YES IMMOBILIZER SIGNAL
TURN IGNITION ON. HARNESS CONNECTOR ABOVE 1.0 VOLT? CIRCUIT FOR A
CAVITY 38. SHORT TO VOLTAGE.*
FIG.1
NO
CONTINUE TEST
TC-94A ON THE
NEXT PAGE.
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
283
ProCarManuals.com

TEST TC-94ACONTINUED - REPAIRING - VEHICLE THEFT ALARM TROUBLE CODES
FIG.1
FIG.2
FIG.3
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
284
ProCarManuals.com