key CHRYSLER CARAVAN 2000 Repair Manual

TEST TC-84AREPAIRING - TERMINAL 15 PLAUSIBILITY AFTER START-UP
Perform TEST DTC Before Proceeding
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
START TEST WITH THE DRB,
TC-84A. ERASE CODES.
CYCLE THE IGNITION
ON AND OFF SEVERAL WITH THE IGNITION DOES THE DRB YES CONTINUE TEST
TIMES, PAUSING FOR ON ENGINE OFF, DISPLAY "TERMINAL TC-84A ON THE
TEN SECONDS AT KEY READ CODES. 15 PLAUSIBILITY"? NEXT PAGE.
ON AND OFF.
NO
AT THIS TIME THE REVIEW THE CIRCUIT
CONDITION FOR DESCRIPTION FOR A WERE ANY PROBLEMS YES REPAIR AS
SETTING THE CODE PROPER UNDERSTANDING FOUND? NECESSARY.*
IS NOT PRESENT. OF THIS CODE. CHECK
FIG. 1 FOR PROBLEMS.
NO
TEST COMPLETE.*
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TEST TC-84ACONTINUED - REPAIRING - TERMINAL 15 PLAUSIBILITY AFTER START-UP
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-84A KEY OFF.
CONTINUED FROM DISCONNECT THE ECM
THE PREVIOUS HARNESS
PAGE. CONNECTORS.**
USING A VOLTMETER, NOTE: BE SURE TO IS THE VOLTAGE
MEASURE ALL ECM EXCLUDE CAVITIES ABOVE 2.0 VOLTS NO REPLACE THE ENGINE
HARNESS CONNECTOR 30,33,45 AND 51 FOR ANY OF THE CONTROL MODULE.*
CAVITIES EXCEPT FROM THIS STEP. MEASUREMENTS?
30,33,45 AND 51.
YES
IS VOLTAGE PRESENT REPAIR SHORT TO
AT ECM HARNESS NO VOLTAGE ON THE
CONNECTOR CAVITIES CIRCUIT THAT
2 OR 28? MEASURED ABOVE 2.0
VOLTS.*
YES
USING A VOLTMETER, REPAIR THE SHORT
REMOVE THE DIESEL MEASURE ECM HARNESS IS THE VOLTAGE YES TO VOLTAGE ON THE
POWER RELAY.** CONNECTOR CAVITY 2. ABOVE 2.0 VOLTS? DIESEL POWER RELAY
OUTPUT CKT.*
FIG.1
NO
TURN IGNITION OFF. THE DIESEL POWER REPAIR THE SHORT
USING AN OHMMETER, RELAY CONTROL CKT. IS THE RESISTANCE YES TO GROUND ON THE
MEASURE BETWEEN AT THE PDC. BELOW 5.0 OHMS? DIESEL POWER RELAY
GROUND AND... CONTROL CKT.*
FIG.2
NO
REPLACE THE DIESEL
POWER RELAY.*
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TEST TC-91ACONTINUED - REPAIRING - VEHICLE SPEED SENSOR TROUBLE CODES
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
KEY OFF.
TEST TC-91A
CONTINUED FROM DISCONNECT THE VSS
PREVIOUS PAGE. HARNESS
CONNECTOR.**
USING A VOLTMETER, REPAIR THE
MEASURE THE FUSED IS THE VOLTAGE NO IGNITION SWITCH
TURN IGNITION ON. IGNITION SWITCH ABOVE 10.0 VOLTS? OUTPUT CIRCUIT FOR
OUTPUT CKT. AN OPEN OR SHORT
FIG.1 TO GROUND.*
YES
USING A VOLTMETER,
MEASURE THE VSS IS THE VOLTAGE NO CONTINUE TEST
SIGNAL CIRCUIT. BETWEEN TC-91A ON THE
4.0 AND 6.0 VOLTS? NEXT PAGE.
FIG.1
YES
KEY OFF. USING AN OHMMETER,
MEASURE RESISTANCE IS THE RESISTANCE NO REPAIR THE OPEN
DISCONNECT THE ECM OF SENSOR GROUND CKT BELOW 5.0 OHMS? SENSOR GROUND
HARNESS BETWEEN ECM AND VSS. CIRCUIT.*
CONNECTORS.** FIG.2
YES
PERFORM TEST
TC-91B.
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TEST TC-91ACONTINUED - REPAIRING - VEHICLE SPEED SENSOR TROUBLE CODES
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-91A
CONTINUED FROM IS THE VOLTAGE YES CONTINUE TEST
THE PREVIOUS ABOVE 6.0 VOLTS IN TC-91A ON THE
PAGE. THE PREVIOUS STEP? NEXT PAGE.
NO
KEY OFF. KEY ON.
USING A VOLTMETER, IS THE VOLTAGE YES REPLACE THE BODY
DISCONNECT THE BCM MEASURE THE VSS BETWEEN CONTROL MODULE.*
"B" HARNESS SIGNAL CKT. 4.0 AND 6.0 VOLTS?
CONNECTOR.** FIG.1
NO
KEY OFF. USING AN OHMMETER, REPAIR THE VSS
MEASURE BETWEEN IS THE RESISTANCE YES SIGNAL CIRCUIT FOR
DISCONNECT THE ECM VSS SIGNAL CKT AND BELOW 5.0 OHMS? A SHORT TO SENSOR
HARNESS SENSOR GROUND CKT. GROUND CIRCUIT.*
CONNECTORS.** FIG.1
NO
USING AN OHMMETER, REPAIR THE VSS
MEASURE BETWEEN IS THE RESISTANCE YES SIGNAL CIRCUIT FOR
VSS SIGNAL CKT AND BELOW 5.0 OHMS? A SHORT TO
GROUND. GROUND.*
FIG.1
NO
USING AN OHMMETER,
MEASURE THE THE VSS SENSOR AND IS THE RESISTANCE NO REPAIR THE OPEN
RESISTANCE OF THE THE ECM. BELOW 5.0 OHMS? VSS SIGNAL
VSS SIGNAL CKTCIRCUIT.*
BETWEEN... FIG.2
YES
REPLACE THE ENGINE
CONTROL MODULE.*
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TEST TC-91ACONTINUED - REPAIRING - VEHICLE SPEED SENSOR TROUBLE CODES
*Perform Verification TEST VER-2A. **Check connectors - Clean / repair as necessary.
TEST TC-91A KEY OFF.
CONTINUED FROM
THE PREVIOUS DISCONNECT THE BCM
PAGE. "B" HARNESS
CONNECTOR.**
USING A VOLTMETER,
MEASURE THE VSS IS THE VOLTAGE YES REPLACE THE BODY
TURN IGNITION ON. SIGNAL CKT. BELOW 5.0 VOLTS? CONTROL MODULE.*
FIG.1
NO
KEY OFF.
REMOVE THE DIESEL
DISCONNECT THE ECM POWER RELAY.*
HARNESS
CONNECTORS.* FIG.2
WITH A JUMPER WIRE, KEY ON. USING A REPAIR THE VSS
CONNECT DIESEL POWER VOLTMETER, MEASURE IS THE VOLTAGE NO SIGNAL CIRCUIT FOR
RELAY CONNECTOR THE VSS SIGNAL CKT. ABOVE 1.0 VOLT? A SHORT TO
CAVITIES 30 AND 87 VOLTAGE.*
(IN PDC). FIG.2 FIG.1
YES
REPLACE THE ENGINE
CONTROL MODULE.*
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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 SK-1AIDENTIFYING SENTRY KEY IMMOBILIZER PROBLEMS
NOTES
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TEST SK-1AIDENTIFYING SENTRY KEY IMMOBILIZER SYSTEM PROBLEMS
NOTE:The Sentry Key Immobilizer System (SKIS) diagnosis may require usage of the customer's
additional keys to verify the cause of the system failure. In the event that the Sentry Key Immobilizer
Module (SKIM) needs replacing, all of the keys previously programmed into the SKIM's memory
must be programmed into the new SKIM.THEREFORE IT IS IMPORTANT THAT ALL OF THE
CUSTOMER'S KEYS PROGRAMMED FOR THE VEHICLE BE OBTAINED PRIOR TO BEGIN-
NING VEHICLE DIAGNOSIS.
NOTE:It is necessary to obtain the four-digit Personal Identification Number (PIN) from the
customer or the vehicle invoice. The PIN is required to perform certain SKIM tasks using the DRB.
NOTE:It is very important that the ECM/BCM is programmed with the correct Vehicle Identification
Number (VIN). Incorrect VIN programming may result in incorrect diagnosis and unnecessary
component replacement. Use the DRB to verify the correct VIN and country code are programmed
into the SKIM.
1. The battery must be fully charged for any test in this manual.
2. Attempt to start the engine. Crank for up to 10 seconds if necessary.
3. Connect the DRB to the diagnostic connector and select ``Theft Alarm'' then ``SKIM''.
If the DRB displays ``No Response''..................................perform test 1B
NOTE:If the DRB screen is blank or has a DRB error message displayed, go toGeneral
Information Section 3.5in this manual.
4. With the DRB, read and record SKIM trouble codes.
5. If diagnostic trouble code are displayed, refer to the diagnostic trouble code list on the next page
for the appropriate test.
NOTE:For all component locations, seeGeneral Information Section 4.0in this manual.
DIAGNOSTIC TROUBLE CODE (DTC) DISPLAYED
DIAGNOSTIC TEST
ANTENNA FAILURE**
COP FAILURE**
EEPROM FAILURE**
PCM STATUS FAILURE SK-2A
INTERNAL FAULT**
RAM FAILURE**
ROLLING CODE FAILURE SK-3A
SERIAL LINK EXTERNAL FAULT SK-4A
STACK OVERFLOW FAILURE **
TRANSPONDER COMMUNICATION FAILURE SK-5A
TRANSPONDER CRC (CYCLIC REDUNDANCY CHECK)
FAILURESK-6A
TRANSPONDER ID MISMATCH SK-7A
TRANSPONDER RESPONSE MISMATCH SK-8A
VIN MISMATCHSK-9A
**These trouble codes indicate an internal SKIM fault. Using the DRB, clear SKIM trouble code(s).
Perform several key cycles, leaving the key on for a minimum of 30 seconds per cycle. Using the
DRB, read SKIM trouble codes. If the trouble code is present, replace the SKIM.
NOTE:An intermittent start and stall condition accompanied with a transponder DTC can be caused
by the presence of a non-programmed key or key programmed to another vehicle, near the SKIM
antenna (ignition halo). This can occur if the customer has a key holder (ring) that contains more
than one key equipped with a transponder chip.
After replacement of the Sentry Key Immobilizer Module (SKIM) seeGeneral Information Section 8.0
for SKIM initialization.
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TEST SK-1BSKIM COMMUNICATION
Perform TEST SK-1A Before Proceeding
*Perform Verification TEST VER-1A. **Check connectors - Clean / repair as necessary.
USING THE DRB, REFER TO "BODY
START TEST ATTEMPT TO CAN YOU NO DIAGNOSTIC
SK-1B. COMMUNICATE WITH COMMUNICATE WITH PROCEDURES" MANUAL A
THE BODY CONTROL THE BCM? TO DIAGNOSE VEHICLE
MODULE. COMMUNICATION.
YES
TURN IGNITION OFF. USING AN OHMMETER,
DISCONNECT THE MEASURE BETWEEN IS THE RESISTANCE NO REPAIR THE OPEN
SKIM HARNESS GROUND AN SKIM BELOW 5.0 OHMS? GROUND CIRCUIT.*
CONNECTOR.** HARNESS CONNECTOR
CAVITY 2. FIG.1
YES
USING A VOLTMETER,
MEASURE THE BATTERY IS THE VOLTAGE NO REPAIR THE OPEN
SUPPLY CIRCUIT. ABOVE 10.0 VOLTS? BATTERY SUPPLY
CIRCUIT.*
FIG.1
YES
USING A VOLTMETER,
MEASURE THE IGNITION IS THE VOLTAGE NO REPAIR THE OPEN
TURN IGNITION ON. SUPPLY CIRCUIT. ABOVE 10.0 VOLTS? IGNITION SUPPLY
CIRCUIT.*
FIG.1
YES
WAIT 2 MINUTES MEASURE BOTH CCD IS THE VOLTAGE
BEFORE CONTINUING. BUS CIRCUITS AT BETWEEN 2.3 AND NO REPAIR THE OPEN
THE SKIM HARNESS 2.6 VOLTS FOR BOTH CCD BUS
WITH THE IGNITION CONNECTOR. MEASUREMENTS? CIRCUIT(S).*
STILL ON... FIG.1
YES
TURN IGNITION OFF. KEY ON.
CAN YOU NO REPLACE THE SENTRY
RECONNECT THE SKIM ATTEMPT TO COMMUNICATE WITH KEY IMMOBILIZER
HARNESS CONNECTOR. COMMUNICATE WITH THE SKIM? MODULE.*
THE SKIM.
YES
TEST COMPLETE.*
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TEST SK-2ACONTINUED - REPAIRING - PCM STATUS FAILURE
*Perform Verification TEST VER-1A. **Check connectors - Clean / repair as necessary.
TEST SK-2A
CONTINUED FROM
THE PREVIOUS TURN IGNITION OFF.
PAGE.
USING THE SCHEMATIC CHECK THE WIRING
AS A GUIDE, INSPECT AND CONNECTORS FOR ARE ANY OF THESE YES REPAIR AS
THE CCD BUS CIRCUITS POOR TERMINAL CONDITIONS NECESSARY.*
BETWEEN THE BCM AND CONTACT, CORROSION PRESENT?
SKIM. OR DAMAGE.
NO
REPLACE THE SENTRY
KEY IMMOBILIZER USING THE DRB,
MODULE.** ERASE SKIM CODES.
SEE GENERAL INFO 8.0
DRIVE VEHICLE. USING THE DRB, DOES THIS CODE YES REPLACE THE BODY
CHECK FOR SKIM APPEAR? CONTROL MODULE.*
PERFORM SEVERAL CODES.
KEY CYCLES.
NO
TEST COMPLETE.
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