2000 CHRYSLER CARAVAN Service Manual

TEST TC-7AREPAIRING - ACCELERATOR PEDAL SENSOR TROUBLE CODES
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY OFF. CONNECT ONE END OF A
START TEST JUMPER WIRE TO ACCEL
TC-7A. DISCONNECT THE ACCEL PEDAL SENSOR HARNESS
PEDAL SENSOR HARNESS CONN CAVITY 3.
CONNECTOR.** FIG.1
KEY ON. USING THE THE JUMPER WIRE TO DOES THE DRB CHANGE
DRB, READ THE ACCEL PEDAL SENSOR BETWEEN "IDLE" TO NO PERFORM TEST
"LOW IDLE SWITCH" HARNESS CONNECTOR "ABOVE IDLE" TC-7B.
INPUT WHILE TAPPING CAVITY 5. WHEN TAPPING THE
THE OTHER END OF... FIG.1 JUMPER WIRE.
YES
REMOVE JUMPER WIRE. MEASURE BETWEEN
GROUND AND THE IS THE VOLTAGE NO PERFORM TEST
USE A VOLTMETER IN 5-VOLT SUPPLY CKT. BETWEEN TC-7C.
THE FOLLOWING STEPS. 4.7 AND 5.3 VOLTS?
FIG.1
YES
MEASURE BETWEEN REPAIR THE SENSOR
SENSOR GROUND IS THE VOLTAGE NO GROUND CIRCUIT FOR
(CAV 8) AND 5-VOLT BETWEEN AN OPEN.
SUPPLY CKT. 4.7 AND 5.3 VOLTS? IF OK, REPLACE THE
FIG.1 ECM.*
YES
MEASURE BETWEEN REPAIR THE SIGNAL
GROUND AND THE IS THE VOLTAGE NO CIRCUIT FOR A
ACCEL PEDAL SENSOR BELOW 0.5 VOLT? SHORT TO VOLTAGE.
SIGNAL CKT. IF OK, REPLACE THE
FIG.1 ECM.*
YES
CONNECT A JUMPER REPAIR THE OPEN
WIRE BETWEEN THE USING THE DRB, IS THE VOLTAGE NO ACCEL PEDAL SENSOR
5-VOLT SUPPLY CKT READ THE ABOVE 4.5 VOLTS? SIGNAL CIRCUIT.
AND ACCEL PEDAL "ACCEL PEDAL VOLTS". IF OK,
SENSOR CKT. FIG.1REPLACE THE ECM.
YES
REMOVE JUMPER KEY ON. WITH THE IS THE VOLTAGE
WIRE. KEY OFF. ACCEL PEDAL AT REST BETWEEN NO REPLACE THE
RECONNECT THE (IDLE), USE THE DRB 0.28 AND 0.38 ACCELERATOR PEDAL
ACCEL PEDAL SENSOR AND READ THE ACCEL VOLTS? POSITION SENSOR.*
HARNESS CONNECTOR. PEDAL SENSOR VOLTS.
YES
CONTINUE TEST
TC-7A ON THE
NEXT PAGE.
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TEST TC-7ACONTINUED - REPAIRING - ACCELERATOR PEDAL SENSOR TROUBLE CODES
FIG.2
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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 FULLY DPRESS THE
CONTINUED FROM THROTTLE. IS THE VOLTAGE NO REPLACE THE
THE PREVIOUS BETWEEN ACCELERATOR PEDAL
PAGE. WITH THE DRB, READ 4.1 AND 4.6 VOLTS? POSITION SENSOR.*
ACCEL PEDAL VOLTS.
YES
USING AN ANALOG SLOWLY DEPRESS AND
VOLTMETER, BACKPROBE RELEASE THE
ACCEL PEDAL SENSOR ACCELERATOR PEDAL
HARNESS CONN SEVERAL TIMES WHILE
CAVITY 7. FIG.1 OBSERVING THE METER.
NOTE: THE WITHOUT ANY SHARP DOES VOLTAGE
VOLTMETER NEEDLE INCREASE OR INCREASE AND NO REPLACE THE
SHOULD RESPOND DECREASE IN DECREASE SMOOTHLY ACCELERATOR PEDAL
SMOOTHLY TO ACCEL VOLTAGE. WITH ACCEL PEDAL POSITION SENSOR.*
PEDAL TRAVEL... TRAVEL?
YES
USING THE DRB WITH THE ACCEL PEDAL
CUSTOM DISPLAY, AND THE LOW IDLE AT FULL REST (IDLE) THE ACCEL PEDAL %
OBSERVE THE ACCEL SWITCH INPUT. SLOWLY DEPRESS THE AND THE LOW IDLE
PEDAL SENSOR ACCEL PEDAL WHILE SWITCH INPUT.
PERCENTAGE (%)... OBSERVING...
NOTE: THE LOW IDLE DID LOW IDLE
SWITCH INPUT BETWEEN 8% AND 21% SWITCH INPUT NO REPLACE THE
SHOULD SWITCH FROM OF ACCEL PEDAL CHANGE BETWEEN 8% ACCELERATORE PEDAL
"IDLE" TO POSITION TRAVEL. AND 21% OF ACCEL POSITION SENSOR
"ABOVE IDLE"... PEDAL TRAVEL?
YES
KEY OFF. INSPECT CONNECTOR
DISCONNECT ACCEL FOR DAMAGE, WERE ANY OF THESE YES REPAIR AS
PEDAL SENSOR AND CORROSION, CONDITIONS NECESSARY.*
ECM HARNESS TERMINAL PUSH-OUT PRESENT?
CONNECTORS. OR OTHER PROBLEMS.
NO
RECONNECT ALL WIGGLE THE WIRING REPAIR AS
CONNECTORS. AND CONNECTORS DOES THE DRB YES NECESSARY WHERE
KEY ON. ASSOCIATED WITH THE DISPLAY THIS CODE? WIGGLING CAUSED
USING THE DRB, CLEAR ACCEL PEDAL SENSOR. TROUBLE CODE TO
TROUBLE CODES. CHECK TROUBLE CODES. SET.
NO
CONTINUE TEST
TC-7A ON THE
NEXT PAGE.
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TEST TC-7ACONTINUED - REPAIRING - ACCELERATOR PEDAL SENSOR TROUBLE CODEST
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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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TEST TC-7BREPAIRING - ACCELERATOR PEDAL SENSOR TROUBLE CODES
Perform TEST TC-7A Before Proceeding
FIG.1
FIG.2
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TEST TC-7BREPAIRING - ACCELERATOR PEDAL SENSOR TROUBLE CODES
Perform TEST TC-7A Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
WITH JUMPER STILL DOES THE DRB DISPLAY REPAIR THE OPEN
START TEST CONNECTED TO CAVITY CHANGE BETWEEN YES SENSOR GROUND.
TC-7B. 5, TAP THE OTHER END "IDLE" TO "ABOVE IF OK,
OF THE JUMPER TO IDLE" WHEN TAPPING REPLACE THE ECM*
CHASSIS GROUND. THE JUMPER WIRE?
NO
USING A VOLTMETER, REPAIR THE LOW
MEASURE THE LOW IS THE VOLTAGE YES IDLE POSITION
IDLE POSITION ABOVE 5.5 VOLTS? SENSE CIRCUIT FOR
SENSE CKT. A SHORT TO
FIG.1 VOLTAGE.*
NO
TURN IGNITION OFF. USING AN OHMMETER, REPAIR THE LOW
MEASURE BETWEEN IS THE RESISTANCE YES IDLE POSITION
DISCONNECT THE ECM GROUND AND THE LOW BELOW 5.0 OHMS? SENSE CIRCUIT FOR
HARNESS IDLE POSITION A SHORT TO
CONNECTORS.** SENSE CKT. FIG.1 GROUND.*
NO
USING AN OHMMETER,
MEASURE THE LOW IS THE RESISTANCE NO REPAIR THE OPEN
IDLE POSITION BELOW 5.0 OHMS? LOW IDLE POSITION
SENSE CKT. SENSE CIRCUIT.*
FIG.2
YES
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST TC-7CREPAIRING - ACCELERATOR PEDAL SENSOR TROUBLE CODES
Perform TEST TC-7A Before Proceeding
FIG.1
FIG.2
FIG.3
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