2000 CHRYSLER CARAVAN Service Manual

TEST TC-1ACONTINUED - REPAIRING - A/C CONTROL SHORT CIRCUIT
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-1A
CONTINUED FROM TURN IGNITION OFF.
THE PREVIOUS REMOVE THE A/C
PAGE. CLUTCH RELAY.**
USING AN OHMMETER, 85 AND 86 IS THE RESISTANCE
MEASURE RESISTANCE 85 AND 87 BELOW 30.0 OHMS YES REPLACE THE A/C
BETWEEN A/C CLUTCH 85 AND 30 FOR ANY OF THE CLUTCH RELAY.*
RELAY TERMINALS... 85 AND 87A MEASUREMENTS?
FIG.2
NO
DISCONNECT THE ECM REMOVE THE DIESEL
HARNESS POWER RELAY.**
CONNECTORS.**
WITH A JUMPER WIRE, TURN IGNITION ON.
CONNECT DIESEL POWER
RELAY CONN. CAVITIES USE A VOLTMETER IN
30 AND 87 (IN PDC). THE FOLLOWING
FIG.3 STEP.
MEASURE THE RELAYREPAIR A/C CLUTCH
CONTROL CIRCUIT AT IS THE VOLTAGE YES RELAY CONTROL
RELAY CONNECTOR ABOVE 1.0 VOLT? CIRCUIT FOR SHORT
(IN PDC).TO VOLTAGE.*
FIG.1
NO
REPLACE THE ENGINE
CONTROL MODULE.*
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
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TEST TC-2AREPAIRING - A/C CONTROL OPEN CIRCUIT
Perform TEST DTC Before Proceeding
FIG.1
FIG.2
T
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O
U
B
L
E
C
O
D
E
T
E
S
T
S
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TEST TC-2AREPAIRING - A/C CONTROL OPEN CIRCUIT
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
NO
YES
T
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O
U
B
L
E
C
O
D
E
T
E
S
T
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TEST TC-2ACONTINUED - REPAIRING - A/C CONTROL OPEN CIRCUIT
FIG.1
FIG.2
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
S
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TEST TC-2ACONTINUED - REPAIRING - A/C CONTROL OPEN CIRCUIT
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-2A TURN IGNITION ON.
CONTINUED FROM IS THE A/C CLUTCH NO CONTINUE TEST
THE PREVIOUS WITH THE DRB, RELAY CLICKING? TC-2A ON THE
PAGE. ACTUATE THE A/C NEXT PAGE.
CLUTCH RELAY.
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 NOTE: THE DRB MUST REPAIR AS
HARNESS FROM THE STILL BE ACTUATING DID THE WIGGLING YES NECESSARY WHERE
RELAY TO THE THE A/C CLUTCH INTERRUPT THE WIGGLING CAUSED
ENGINE CONTROL RELAY. CLICKING? CLICKING TO BE
MODULE.INTERRUPTED.*
NO
REFER TO GENERAL
INFORMATION 3.3.2 YES
FOR ADDITIONAL TEST COMPLETED.*
INFORMATION ON
INTERMITTENT CODES.
T
R
O
U
B
L
E
C
O
D
E
T
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S
T
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TEST TC-2ACONTINUED - REPAIRING - A/C CONTROL OPEN CIRCUIT
FIG.1
FIG.2FIG.3
T
R
O
U
B
L
E
C
O
D
E
T
E
S
T
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TEST TC-2ACONTINUED - REPAIRING - A/C CONTROL OPEN CIRCUIT
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-2A
CONTINUED FROM KEY OFF.
THE PREVIOUS REMOVE THE A/C
PAGE. CLUTCH RELAY.**
USING A VOLTMETER,
MEASURE THE DIESEL IS THE VOLTAGE NO REPAIR THE OPEN
TURN IGNITION ON. POWER RELAY OUTPUT ABOVE 10.0 VOLTS? DIESEL POWER RELAY
CIRCUIT. OUTPUT CIRCUIT.*
FIG.1
YES
KEY OFF. MEASURE THE
RESISTANCE BETWEEN IS THE RESISTANCE NO REPLACE THE A/C
USE AN OHMMETER IN A/C CLUTCH RELAY BELOW 100.0 OHMS? CLUTCH RELAY.*
THE FOLLOWING TERMINALS 85 AND 86.
STEPS. FIG.2
YES
MEASURE THE REPAIR THE A/C
DISCONNECT THE ECM RESISTANCE BETWEEN IS THE RESISTANCE YES CLUTCH RELAY
HARNESS GND AND THE A/C BELOW 5.0 OHMS? CONTROL CKT FOR A
CONNECTORS.** CLUTCH RELAY CONTROL SHORT TO GROUND.*
CKT (IN PDC). FIG.1
NO
MEASURE THE FROM THE RELAY TO
RESISTANCE OF THE THE ECM. IS THE RESISTANCE NO REPAIR OPEN A/C
A/C CLUTCH RELAY BELOW 5.0 OHMS? CLUTCH RELAY
CONTROL CIRCUIT... CONTROL CKT.*
FIG.3
YES
REPLACE THE ENGINE
CONTROL MODULE.*
T
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O
U
B
L
E
C
O
D
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TEST TC-3AREPAIRING - A/C SYSTEM PRESSURE SIGNAL HIGH EXCEEDED
Perform TEST DTC Before Proceeding
FIG.1
FIG.2
T
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U
B
L
E
C
O
D
E
T
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S
T
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