2000 CHRYSLER CARAVAN ignition

TEST NS-1AREPAIRING A NO CRANK CONDITION
Perform TEST NS-SEL Before Proceeding
*Perform Verification TEST VER-1A. **Check connectors - Clean / repair as necessary.
NOTE: BATTERY MUST
START TEST BE FULLY CHARGED
NS-1A. BEFORE DIAGNOSING
A NO-START
CONDITION.
NOTE: BEFORE VEHICLE THEFT DIAGNOSE
CONTINUING, BE (SKIM) SYSTEM FOR ARE ANY CODES YES TROUBLE CODE
SURE TO CHECK DIAGNOSTIC TROUBLE PRESENT? BEFORE
ENGINE SYSTEM CODES. CONTINUING.]
AND...
NO
INSPECT BATTERY
CABLES FOR IS THERE EVIDENCE YES REPAIR AS
TURN IGNITION OFF. CORROSION, OF PROBLEMS? NECESSARY.*
LOOSENESS OR OTHER
PROBLEMS.
NO
TURN IGNITION OFF. KEY ON. WITH A REPAIR THE STARTER
VOLTMETER, MEASURE IS THE VOLTAGE YES RELAY CONTROL
DISCONNECT THE ECM THE STARTER RELAY ABOVE 1.0 VOLT? CIRCUIT FOR A
HARNESS CONTROL CKT. SHORT TO VOLTAGE.*
CONNECTORS.** FIG.1
NO
KEY OFF. USING A FULLY DEPRESS THE
JUMPER WIRE CONNECT CLUTCH PEDAL. DID THE ENGINE YES REPLACE THE ENGINE
THE STARTER RELAY CRANK? CONTROL MODULE.*
CONTROL CKT TO ATTEMPT TO CRANK
GROUND. FIG.1 THE ENGINE.
NO
WITH A VOLTMETER,
DISCONNECT THE MEASURE THE FUSED IS THE VOLTAGE NO REPAIR OPEN FUSED
STARTER RELAY FROM B(+) CIRCUIT. ABOVE 11.6 VOLTS? BATTERY CIRCUIT.*
THE PDC.**
FIG.1
YES
WARNING: THE TRANS WARNING: THE ENGINE BRIEFLY CONNECT A
MUST BE IN NEUTRAL MAY BE CRANKED IN JUMPER WIRE BETWEEN CONTINUE TEST
AND THE PARKING THE NEXT STEP. KEEP THE STARTER RLY NS-1A ON THE
BRAKE MUST BE ON AWAY FROM MOVING OUTPUT AND FUSED NEXT PAGE.
FOR THE NEXT STEP. ENGINE PARTS. B(+) CKTS. FIG.1
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TEST NS-2AREPAIRING A NO RESPONSE CONDITION
Perform TEST NS-SEL Before Proceeding
*Perform Verification TEST VER-1A. **Check connectors - Clean / repair as necessary.
START TEST DOES THE VEHICLE YES PERFORM TEST
NS-2A. START? NS-2B.
NO
KEY OFF. WITH AN OHMMETER, IS THE RESISTANCE
MEASURE RESISTANCE ABOVE 5.0 OHMS FOR YES REPAIR THE OPEN
DISCONNECT THE ECM OF THE PCM GND CKTS ANY OF THE ECM GROUND.*
HARNESS AT HARNESS CAVITIES MEASUREMENTS?
CONNECTORS.** 1 AND 27. FIG.1
NO
KEY ON. USING A AT ECM HARNESS REPAIR OPEN OR
VOLTMETER, MEASURE CONNECTOR CAVITY 47. IS THE VOLTAGE NO SHORT TO GROUND IN
THE FUSED IGNITION ABOVE 10.0 VOLTS? THE FUSED IGNITION
SWITCH OUTPUT SWITCH OUTPUT
CIRCUIT... FIG.1 CIRCUIT.*
YES
KEY OFF. USING A VOLTMETER REPAIR OPEN FUSE
REMOVE THE DIESEL PROBE DIESEL POWER IS THE VOLTAGE NO OR FUSED BATTERY
POWER RELAY. RELAY CONNECTOR ABOVE 10.0 VOLTS? CIRCUIT TO DIESEL
CAVITY 30 (IN PDC). POWER RELAY.*
KEY ON. FIG.2
YES
KEY OFF. CONNECT A MEASURE VOLTAGE AT IS THE VOLTAGE
JUMPER WIRE ACROSS ECM HARNESS ABOVE 10.0 VOLTS NO REPAIR OPEN DIESEL
RELAY CONNECTOR CONNECTOR CAVITIES FOR EACH POWER RELAY OUTPUT
CAVATIES 30 AND 87. 2 AND 28. MEASUREMENT? CIRCUIT(S).*
FIG. 1 AND 2
YES
KEY OFF. RECONNECT WITH JUMPER WIRE
THE ENGINE CONTROL STILL CONNECTED, DOES THE VEHICLE NO REPLACE THE ENGINE
MODULE HARNESS ATTEMPT TO START START? CONTROL MODULE.*
CONNECTORS. VEHICLE.
YES
CONTINUE TEST
NS-2A ON THE
NEXT PAGE.
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TEST NS-2BREPAIRING A NO RESPONSE CONDITION
Perform TEST NS-2A Before Proceeding
*Perform Verification TEST VER-1A. **Check connectors - Clean / repair as necessary.
WAS THE IGNITION TURN IGNITION ON
START TEST ON WHEN THE "NO NO TO GET A RESPONSE.
NS-2B. RESPONSE" MESSAGE
WAS DISPLAYED? TEST COMPLETE.
YES
KEY ON. PROBE THE
ISO K-LINE CIRCUIT IS THE TEST LIGHT YES REPAIR THE ISO
USE A TEST LIGHT AT THE DLC. ON? K-LINE FOR A SHORT
IN THE FOLLOWINGTO VOLTAGE.*
STEP. FIG.1
NO
KEY OFF.
DISCONNECT DRB
DISCONNECT THE ECM FROM THE DATA LINK
HARNESS CONNECTOR.
CONNECTORS.**
MEASURE THE
USE AN OHMMETER IN RESISTANCE OF THE IS THE RESISTANCE YES REPAIR THE ISO
THE FOLLOWING ISO K-LINE AT THE BELOW 5.0 OHMS? K-LINE CIRCUIT FOR
STEPS. DLC CONNECTOR TO A SHORT TO GROUND.
GROUND FIG.1
NO
MEASURE THE
RESISTANCE OF THE IS THE RESISTANCE NO REPAIR THE OPEN
ISO K-LINE AT THE BELOW 5.0 OHMS? ISO K-LINE
DLC CONN. TO THE CIRCUIT.
ECM CONN. FIG.2
YES
MEASURE BETWEEN THE DLC CAVITIES REPAIR THE GROUND
CHASSIS GROUND AND 4 AND 5. IS THE RESISTANCE NO CIRCUIT(S) THAT
THE GROUND BELOW 5.0 OHMS FOR MEASURED ABOVE 5.0
CIRCUITS AT... EACH MEASUREMENT? OHMS FOR AN OPEN.*
FIG.1
YES
CONTINUE TEST
NS-2B ON THE
NEXT PAGE.
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TEST NS-2BCONTINUED - REPAIRING A NO RESPONSE CONDITION
*Perform Verification TEST VER-1A. **Check connectors - Clean / repair as necessary.
TEST NS-2B CONNECT THE DRB TO
CONTINUED FROM A FUNCTIONAL DATA
THE PREVIOUS LINK ON ANOTHER
PAGE. VEHICLE.
REPLACE THE
WITH THE DRB, DID THE DRB NO INITIAL VEHICLE'S
TURN IGNITION ON. ATTEMPT TO READ DISPLAY "NO ENGINE CONTROL
TROUBLE CODES. RESPONSE"? MODULE.*
YES
SUBSTITUTE ANOTHER WITH THE DRB, DID THE DRB NO REPLACE THE DRB
DRB ADAPTER CABLE. ATTEMPT TO READ DISPLAY "NO ADAPTER CABLE.*
TROUBLE CODES. RESPONSE"?
YES
HAVE THE DRB
REPAIRED OR
REPLACED.*
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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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TEST VER-1ANO START VERIFICATION
Important Note:
If the Engine Control Module, Sentry Key Immobilizer Module or Body Control Module have been
changed the Vehicle Identification Number (VIN) and Secret Key data must be updated to enable the
vehicle to start and run. Refer to GENERAL INFORMATION SECITON 8.0 for programming
procedures.
Inspect the vehicle to ensure that all engine components are connected. Reassemble and reconnect
components as necessary.
Inspect the engine oil for contamination. If it is contaminated, change the oil and filter.
Using the DRB, clear all diagnostic trouble codes (DTC's).
Turn the ignition off for 10 seconds.
Attempt to start the vehicle.
If the engine isunableto start, look for any Technical Service Bulletins that may relate to this
condition. Return toDTC TESTif necessary.
The repair is now complete.
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TEST VER-2AROAD TEST VERIFICATION
Inspect the vehicle to ensure that all engine components are connected. Reassemble and reconnect
all components as necessary.
If this verification procedure is being performed after a NO TROUBLE CODE test, do the
following:
1. Check to see if the initial symptom still exists.
2. If the initial or another symptom exists, the repair is not complete. Check all pertinent Technical
Service Bulletins and return toTEST NTC-1Aif necessary.
For previously read trouble codes that have not been dealt with, return toDTC TESTand follow the
path specified; otherwise, continue.
If the engine control module has not been changed:
1. Connect the DRB to the data link connector and erase trouble codes.
2. With the DRB, reset all values in the adaptive memory.
3. Disconnect the DRB.
4. Turn the ignition off for at least 10 seconds.
Ensure no trouble code remains by doing the following:
1. If this test is for anA/C Relay Control Circuit,drive the vehicle for at least five minutes with
the A/C on. For some of the drive, go at least 40 mph; at some point stop the car and turn the
engine off for 10 seconds or more then restart and continue. Upon completion of the road test,
turn the engine off, and read trouble codes with the DRB.
2. If the repaired code has reset, the repair is not complete. Check all related Technical Service
Bulletins and return toDTC TESTif necessary. If another trouble code has set, return toDTC
TESTand follow the path specified for that trouble code. If there are no trouble codes, the
repair was successful and is now complete.
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