Scan Tool Method

WARNING: This page is about a different car, the 2002 Dodge Ram Wagon, 2002 Dodge Ram Van, 2001 Dodge Ram Wagon, and 2001 Dodge Ram Van. However, it is still accessible from the selected car via links, so may be relevant.

Perform pretest inspection. See PRELIMINARY INSPECTION under TROUBLE SHOOTING. If pretest inspection procedure has been performed, go to next step.
Turn ignition off. Connect scan tool to Data Link Connector (DLC). Turn ignition on. If scan tool display is blank, see SCAN TOOL BLANK SCREEN under COMMUNICATIONS under SYSTEM TESTS. If scan tool display is not blank, go to next step.
Using scan tool, select SYSTEM MONITORS, then CCD BUS TEST. Scan tool will perform a CCD bus test. If scan tool does not display BUS OPERATIONAL, see appropriate test under COMMUNICATIONS under SYSTEM TESTS. If scan tool displays BUS OPERATIONAL, go to next step.
Using scan tool, select READ DTCs. If any DTCs exist, perform corresponding DTC test(s) under SYSTEM TESTS . See DIAGNOSTIC TROUBLE CODE IDENTIFICATION table. If no DTCs exist, repair by performing appropriate symptom test(s) under SYSTEM TESTS . See SYMPTOM IDENTIFICATION table.

DIAGNOSTIC TROUBLE CODE IDENTIFICATION

Affected System

⁽¹⁾⁽²⁾ DTC

Air Bag

⁽³⁾

Communications

Bus (+)/Bus (-) Open

.....

Bus Bias Level Too High Or Too Low

.....

Bus (+) & Bus (-) Shorted Together

.....

No Bus Bias

.....

No Response From Air Bag Control Module

.....

No Response From CAB Module

.....

⁽⁴⁾No Response From CTM

.....

No Response From Instrument Cluster

.....

No Response From PCM (CCD)

.....

No Response From PCM (SCI Only)

.....

.....

.....

.....

Door Ajar ⁽⁴⁾

Shorted Driver's Side Door Ajar Circuit

.....

Passenger's Side Door Ajar Circuit Open

.....

Auxiliary Door Switch Circuit (Side Or Rear) Open

.....

Auxiliary Door Switch Circuit (Side Or Rear) Shorted To Ground

.....

Driver's Side Door Ajar Circuit Open

.....

Passenger's Side Door Ajar Circuit Shorted To Ground

Power Door Locks/Remote Keyless Entry ⁽⁴⁾

Door Lock Switch Failure

Vehicle Theft Security

Cylinder Lock Switch Failure/Lock

.....

Cylinder Lock Switch Failure/Unlock

.....

EEPROM Checksum Failure

.....

Internal ROM Test Failed

Windshield Wiper ⁽⁴⁾

Wiper Park Switch Failure

⁽¹⁾	Some Diagnostic Trouble Codes (DTC) may be listed as a symptom. If a DTC that exists is not listed in this table, see SYMPTOM IDENTIFICATION table.

⁽²⁾	Perform corresponding test(s) under SYSTEM TESTS .

⁽³⁾	For air bag system diagnostic trouble codes and testing procedures, see AIR BAG RESTRAINT SYSTEMS article in RESTRAINTS.

⁽⁴⁾	This testing only applies to models with vehicle theft security system.

SYMPTOM IDENTIFICATION

Affected System

⁽¹⁾⁽²⁾ Test

Chime

Chime Inoperative At All Times

.....

Chime Inoperative With Exterior Lights On & Driver's Side Door Open

.....

Chime Inoperative With Key In Ignition & Driver's Side Door Open

.....

Chime Sounds With Driver's Side Door Open & Key Removed

Instrument Cluster

All Gauges Inoperative

.....

Any CCD Cluster Light Inoperative

.....

Any Hard Wired Light Inoperative

.....

Fuel Level Gauge Not Operating Properly

.....

Oil Pressure Gauge Not Operating Properly

.....

Speedometer Not Operating Properly

.....

Temperature Gauge Not Operating Properly

Interior Lighting ⁽³⁾

Courtesy/Dome Lights Inoperative From Side/Rear Doors Only

.....

Courtesy/Dome Lights Inoperative From All Doors & Headlight Switch

.....

Courtesy/Dome Lights Stay On

.....

Courtesy/Dome Lights Inoperative From Both Front Doors

.....

Courtesy/Dome Lights Inoperative From Driver's Side Door Only

.....

Courtesy/Dome Lights Inoperative From Headlight Switch

.....

Courtesy/Dome Lights Inoperative From Passenger's Side Door Only

.....

Illuminated Entry Inoperative

.....

Illuminated Entry Time Out Feature Inoperative With Side/Rear Doors

Power Door Locks/Remote Keyless Entry ⁽³⁾

All Doors Failing To Lock From One Switch

.....

All Doors Failing To Lock/Unlock From One Switch

.....

Door Unlock Switch Failure Or All Doors Failing To Unlock From One Switch

.....

All Doors Failing To Lock From Any Switch

.....

All Doors Failing To Lock/Unlock From Any Switch

.....

All Doors Failing To Unlock From Any Switch

.....

Auxiliary Doors Fail To Lock

.....

Door Lock Inhibit Inoperative

.....

One Door Failing To Lock/Unlock From Any Switch

.....

Remote Keyless Entry Problem

.....

Automatic Rolling Door Lock Problem

Vehicle Theft Security

Door Key Cylinder Disarm Inoperative

.....

Headlights Fail To Flash With Alarm Tripped

.....

Horn Fails To Sound With Alarm Tripped

.....

No Alarm With Ignition Turned On; VTSS On

.....

Possible (All) Door Ajar Switch Problem

.....

Theft Alarm Will Not Arm

.....

VTSS Indicator Inoperative

.....

VTSS Unable To Run Self-Diagnostics

Windshield Wiper ⁽³⁾

Wiper Park Switch Failure

.....

No Wipe After Washers Actuated

.....

Intermittent Wipers Inoperative Or Erratic

.....

Wiper Speed Sensitive Inoperative

⁽¹⁾	Some symptoms may be listed as a Diagnostic Trouble Code (DTC). If a symptom that exists is not listed in this table, see DIAGNOSTIC TROUBLE CODE IDENTIFICATION table.

⁽²⁾	Perform corresponding test(s) under SYSTEM TESTS.

⁽³⁾	This testing only applies to models with vehicle theft security system.