2000 CHRYSLER CARAVAN check engine

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.*
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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.
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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.*
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TEST TC-3ACONTINUED - REPAIRING - A/C SYSTEM PRESSURE SIGNAL HIGH EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-3A
CONTINUED FROM DISCONNECT THE A/C
THE PREVIOUS PRESSURE SENSOR
PAGE.
KEY ON. USING A THE A/C PRESSURE REPAIR A/C
VOLTMETER MEASURE SENSOR SIGNAL IS THE VOLTAGE YES PRESSURE SENSOR
THE VOLTAGE CIRCUIT AND GROUND. ABOVE 5.0 VOLTS? SIGNAL SHORTED TO
BETWEEN... VOLTAGE.*
FIG.1
NO
KEY OFF. WITH AN OHMMETER, REPAIR THE SHORT
DISCONNECT THE ECM MEASURE BETWEEN A/C IS THE RESISTANCE YES BETWEEN THE A/C
HARNESS SENSOR SIGNAL CKT BELOW 5.0 OHMS? PRESSURE SENSOR
CONNECTORS.** AND 5-VOLT REF CKT. SIGNAL CKT AND THE
FIG.1 5-VOLT SUPPLY CKT.*
NO
RECONNECT THE ECM
HARNESS TURN IGNITION ON.
CONNECTORS.
CONNECT A JUMPER
WIRE BETWEEN THE A/C WITH THE DRB, READ IS THE VOLTAGE YES REPLACE THE A/C
PRESSURE SENSOR THE A/C OUTPUT BELOW 1.0 VOLT? PRESSURE SENSOR.*
SIGNAL AND SENSOR VOLTAGE.
GROUND CKTS. FIG.1
NO
MOVE THE JUMPER
WIRE FROM A/C READ THE A/C IS THE VOLTAGE YES REPAIR THE OPEN
PRESSURE SENSOR OUTPUT VOLTAGE. BELOW 1.0 VOLT? SENSOR GROUND
GROUND TO ENGINE CIRCUIT.*
GROUND.
NO
REPLACE THE ENGINE
CONTROL MODULE.* TURN IGNITION OFF.
HARNESS
CONNECTOR.**
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TEST TC-4ACONTINUED - REPAIRING - A/C SYSTEM PRESSURE SIGNAL LOW EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-4A DISCONNECT THE A/C
CONTINUED FROM PRESSURE SENSOR
THE PREVIOUS HARNESS
PAGE. CONNECTOR.**
USING A VOLTMETER, REPAIR THE 5-VOLT
MEASURE THE 5-VOLT IS THE VOLTAGE NO SUPPLY CIRCUIT FOR
SUPPLY CIRCUIT. ABOVE 4.9 VOLTS? AN OPEN OR SHORT
TO GROUND.*
FIG.1
YES
JUMPER THE A/C
PRESSURE SENSOR USING THE DRB, IS THE A/C OUTPUT YES REPLACE THE A/C
SIGNAL CKT.TO THE READ THE A/C VOLTAGE ABOVE PRESSURE SENSOR.*
5-VOLT REFERENCE OUTPUT VOLTAGE. 4.5 VOLTS?
CKT. FIG.1
NO
TURN IGNITION OFF. USING AN OHMMETER, REPAIR THE SENSOR
DISCONNECT THE ECM MEASURE THE A/C IS THE RESISTANCE YES SIGNAL CIRCUIT FOR
HARNESS PRESSURE SENSOR BELOW 5.0 OHMS? A SHORT TO
CONNECTORS.** SIGNAL CKT TO GND. GROUND.*
FIG.1
NO
USE AN OHMMETER IN SENSOR SIGNAL REPAIR THE SENSOR
THE FOLLOWING STEPS. CIRCUIT AND THE IS THE RESISTANCE YES SIGNAL CIRCUIT
MEASURE RESISTANCE SENSOR GROUND BELOW 5.0 OHMS? SHORTED TO THE
BETWEEN THE A/C CIRCUIT. SENSOR GROUND
PRESSURE... FIG.1 CIRCUIT.*
NO
MEASURE RESISTANCE
OF THE A/C IS THE RESISTANCE YES REPLACE THE ENGINE
PRESSURE SENSOR BELOW 5.0 OHMS? CONTROL MODULE.*
SIGNAL CIRCUIT.
FIG.2
NO
REPAIR THE OPEN
A/C PRESSURE
SENSOR SIGNAL
CIRCUIT.*
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TEST TC-5ACONTINUED - REPAIRING - A/C SYSTEM PRESSURE SUPPLY HIGH EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-5A TURN IGNITION OFF.
CONTINUED FROM DISCONNECT THE A/C
THE PREVIOUS PRESSURE SENSOR
PAGE. HARNESS
CONNECTOR.**
DISCONNECT THE ECM REMOVE THE DIESEL
HARNESS POWER RELAY.**
CONNECTORS.**
WITH A JUMPER WIRE, KEY ON.
CONNECT DIESEL POWER
RELAY CONN. CAVITIES USE A VOLTMETER IN
30 AND 87 (IN PDC). THE FOLLOWING
FIG.1 STEP.
MEASURE THE A/C REPAIR THE A/C
PRESSURE SENSOR IS THE VOLTAGE YES PRESSURE SENSOR
SUPPLY CIRCUIT. ABOVE 1.0 VOLT? SUPPLY CIRCUIT FOR
A SHORT TO
FIG.2 VOLTAGE.*
NO
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST TC-6ACONTINUED - REPAIRING - A/C SYSTEM PRESSURE SUPPLY LOW EXCEEDED
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-6A KEY OFF.
CONTINUED FROM DISCONNECT THE A/C
THE PREVIOUS PRESSURE SENSOR
PAGE. HARNESS
CONNECTOR.**
WITH THE DRB, IS THE A/C
MONITOR THE A/C PRESSURE SUPPLY YES REPLACE THE A/C
TURN IGNITION ON. PRESSURE SENSOR VOLTAGE ABOVE 4.0 PRESSURE SENSOR.*
SUPPLY VOLTAGE. VOLTS?
NO
KEY OFF.
DISCONNECT THE ECM USE AN OHMMETER IN
HARNESS THE FOLLOWING
CONNECTORS.** STEPS.
MEASURE THE A/C REPAIR THE A/C
PRESSURE SENSOR IS THE RESISTANCE YES PRESSURE SENSOR
5-VOLT SUPPLY BELOW 5.0 OHMS? SUPPLY CIRCUIT FOR
CIRCUIT TO GROUND. A SHORT TO
FIG.1 GROUND.*
NO
MEASURE THE A/C REPAIR THE A/C
PRESSURE SENSOR IS THE RESISTANCE YES PRESSURE SENSOR
5-VOLT SUPPLY CKT BELOW 5.0 OHMS? SUPPLY CIRCUIT FOR
TO SENSOR GROUND. A SHORT TO SENSOR
FIG.1 GROUND.*
NO
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST TC-7ACONTINUED - REPAIRING - ACCELERATOR PEDAL SENSOR TROUBLE CODES
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-7A
CONTINUED FROM RECONNECT ALL
THE PREVIOUS CONNECTORS.
PAGE.
DOES THE DRB
TEST DRIVE THE USING THE DRB, DISPLAY ANY YES REPLACE THE ENGINE
VEHICLE. READ ENGINE ACCELERATOR PEDAL CONTROL MODULE.*
TROUBLE CODES. CODE?
NO
TEST COMPLETE.
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