2000 CHRYSLER CARAVAN turn signal

TEST TC-94ACONTINUED - REPAIRING - VEHICLE THEFT ALARM TROUBLE CODES
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-94A TURN IGNITION OFF. RECONNECT ONLY THE
CONTINUED FROM ENGINE CONTROL
THE PREVIOUS INSTALL THE DIESEL MODULE HARNESS
PAGE. POWER RELAY. CONNECTORS.
KEY ON. MEASURE
USE AN AMMETER IN AMPERAGE FROM BCM IS THE AMPERAGE NO REPLACE THE ENGINE
THE FOLLOWING HARNESS CONNECTOR BETWEEN 1.0 AND CONTROL MODULE.*
STEP. CAVITY 72 TO GROUND. 1.4 MA?
FIG.1
YES
KEY ON. USING THE DRB
OSCILLOSCOPE
RECONNECT THE BODY FUNCTION, SELECT
CONTROL MODULE "LAB SCOPE".
HARNESS CONNECTORS.
SET VOLTAGE RANGE SET TIME RANGE TO
TO +20.0V. SET 0.1S/DIV.
PROBE TO X10.
FIG.2 FIG.3
KEY ON. USING NOTE: A VALID
OSCILLOSCOPE LEAD, IMMOBILIZER SIGNAL
BACKPROBE ECM WILL CYCLE HI AND
HARNESS CONNECTOR LO SIMILAR...
CAVITY 38. FIG. 1
DOES THE DRB
TO THE PATTERN DISPLAY SHOW THE YES REPLACE THE ENGINE
SHOWN IF FIGURE 3. 12 VOLT CONTROL MODULE.*
IMMOBILIZER SIGNAL
CYCLING HI AND LO?
NO
REPLACE THE BODY
CONTROL MODULE.*
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TEST SC-3ACONTINUED - CHECKING SPEED CONTROL OPERATION
*Perform Verification TEST VER-3A. **Check connectors - Clean / repair as necessary.
TEST SC-3A KEY OFF.
CONTINUED FROM
THE PREVIOUS DISCONNECT THE BRAKE
PAGE. LAMP SWITCH HARNESS
CONNECTOR.**
USING A VOLTMETER, REPAIR THE BRAKE
PROBE BRAKE LAMP IS THE VOLTAGE NO LAMP SWITCH FUSED
SWITCH HARNESS ABOVE 9.0 VOLTS? BATTERY SUPPLY
CONNECTOR CAVITY 6. CIRCUIT FOR AN
FIG.1 OPEN.*
YES
CONNECT A JUMPER DOES THE DRB
BETWEEN BRAKE LAMP DISPLAY CHANGE YES ADJUST OR REPLACE
SWITCH HARNESS TURN IGNITION ON. FROM "RELEASED" TO THE BRAKE LAMP
CONNECTOR CAVITIES "PRESSED"? SWITCH.*
5 AND 6. FIG.1
NO
REMOVE THE JUMPER. AT THE BRAKE LAMP REPAIR THE PRIMARY
USING A VOLTMETER, SWITCH HARNESS IS THE VOLTAGE NO BRAKE SWITCH
MEASURE THE CONNECTOR CAVITY 5. BELOW 1.0 VOLT? SIGNAL CIRCUIT FOR
PRIMARY SWITCH A SHORT TO
SIGNAL CIRCUIT... FIG.1 VOLTAGE.*
YES
KEY OFF. USING AN OHMMETER, REPAIR THE PRIMARY
MEASURE RESISTANCE IS THE RESISTANCE NO BRAKE SWITCH
DISCONNECT THE ECM OF THE PRIMARY BRAKE BELOW 5.0 OHMS? SIGNAL CIRCUIT FOR
HARNESS SW SIGNAL CKT. AN OPEN.*
CONNECTORS.** FIG.2
YES
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST SC-3BCONTINUED - CHECKING SPEED CONTROL OPERATION
*Perform Verification TEST VER-3A. **Check connectors - Clean / repair as necessary.
TEST SC-3B
CONTINUED FROM DISCONNECT THE ECM
THE PREVIOUS TURN IGNITION OFF. HARNESS
PAGE. CONNECTORS.**
OF THE SECONDARY REPAIR OPEN IN THE
USING AN OHMMETER, BRAKE LAMP SWITCH IS THE RESISTANCE NO SECONDARY BRAKE
MEASURE THE SIGNAL CIRCUIT. BELOW 5.0 OHMS? LAMP SWITCH SIGNAL
RESISTANCE...CIRCUIT.*
FIG.1
YES
THE BRAKE LAMP REPAIR SHORT TO
USING AN OHMMETER, SWITCH CONNECTOR IS THE RESISTANCE YES GROUND IN THE
MEASURE RESISTANCE CAVITY 1 AND GROUND. BELOW 5.0 OHMS? SECONDARY BRAKE
BETWEEN... LAMP SWITCH SIGNAL
FIG.2 CIRCUIT.*
NO
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST NS-3BREPAIRING - NO START
Perform TEST NS-3A Before Proceeding
*Perform Verification TEST VER-1A. **Check connectors - Clean / repair as necessary.
START TEST
NS-3B. TURN IGNITION OFF.
DISCONNECT THE
DISCONNECT THE ECM BODY CONTROL
HARNESS MODULE HARNESS
CONNECTORS.** CONNECTORS.**
USING AN OHMMETER,
MEASURE RESISTANCE 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 ... CONNECTOR CAVITY BELOW 5.0 OHMS? CIRCUIT FOR A
38 AND GROUND. SHORT TO GROUND.*
FIG. 1
NO
USING A VOLTMETER, REPAIR THE
MEASURE VOLTAGE AT IS THE VOLTAGE YES IMMOBILIZER SIGNAL
TURN IGNITION ON. ECM HARNESS ABOVE 1.0 VOLT? CIRCUIT FOR A
CONNECTOR CAVITY 38. SHORT TO VOLTAGE.*
FIG. 1
NO
CONTINUE TEST
NS-3B ON THE
NEXT PAGE.
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TEST NS-3BCONTINUED - REPAIRING - NO START
*Perform Verification TEST VER-1A. **Check connectors - Clean / repair as necessary.
TEST NS-3B TURN IGNITION OFF.
CONTINUED FROM RECONNECT THE
THE PREVIOUS ENGINE CONTROL
PAGE. MODULE HARNESS
CONNECTORS.
KEY ON. MEASURE
USE AN AMMETER IN AMPERAGE FROM BCM IS THE AMPERAGE NO REPLACE THE ENGINE
THE FOLLOWING HARNESS CONNECTOR BETWEEN 1.0 AND CONTROL MODULE.*
STEP. CAVITY 72 TO GROUND. 1.4 MA?
FIG.1
YES
RECONNECT THE BODY USING THE DRB
CONTROL MODULE OSCILLOSCOPE
HARNESS FUNCTION, SELECT
CONNECTORS. "LAB SCOPE".
SET VOLTAGE RANGE TO KEY ON. USING
+20.0V. SET TIME OSCILLOSCOPE LEAD,
RANGE TO 0.1S/DIV. BACKPROBE ECM
SET PROBE TO X10. HARNESS CONNECTOR
FIG.2 CAVITY 38. FIG.1
NOTE: AN IMMOBILIZER DOES THE DRB DISPLAY
SIGNAL WILL CYCLE HI SHOW THE 12 VOLT YES REPLACE THE ENGINE
TO LO SIMILAR TO THE IMMOBILIZER SIGNAL CONTROL MODULE.*
PATTERN SHOWN IN CYCLING HI AND LO?
FIG.2 FIG.2
NO
REPLACE THE BODY
CONTROL MODULE.*
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