PRELIMINARY INSPECTION
| CAUTION | Always turn ignition off before disconnecting any control module connectors. Failure to do so could result in damage to control module. When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery. |
Verify customer complaint. Check all system fuses. Check for loose accessory drive belt. Check all fluid levels. Check components for visible damage. Check components for loose/poor connections, corrosion and backed-out terminals. Check battery condition and battery terminals. Ensure charging system is operating properly. Check for damaged wiring. Check ground connections. See GROUND DISTRIBUTION article in WIRING DIAGRAMS. Correct any obvious problems before continuing with testing. If no problems exist, go to SELF-DIAGNOSTIC SYSTEM .
SELF-DIAGNOSTIC SYSTEM
Note. For connector terminal identification, see COMPONENT LOCATIONS . For wiring identification, see WIRING DIAGRAMS .
Note. Self-diagnostic tests are written specifically for Chrysler's Diagnostic Readout Box (DRBIII®) scan tool. A generic scan tool may not be capable of performing all necessary test functions.
RETRIEVING DIAGNOSTIC TROUBLE CODES
- Perform visual inspection and ensure battery is fully charged before proceeding. Connect scan tool to Data Link Connector (DLC). DLC is a 16-pin connector located under left side of dash, to left of steering wheel. Turn ignition on. If scan tool display is not blank, go to next step. If scan tool display is blank, go to «COMMUNICATIONS»(ref-34573-S31633498492001010900000) under SYSTEM TESTS.
- Using scan tool, select SYSTEM MONITORS, then CCD BUS TEST. Scan tool will perform a CCD bus test. If scan tool displays BUS OPERATIONAL, go to next step. If scan tool displays any message except BUS OPERATIONAL, go to «COMMUNICATIONS»(ref-34573-S31633498492001010900000) under SYSTEM TESTS.
- Using scan tool, select READ DTCs. If any Diagnostic Trouble Codes (DTCs) are present, go to appropriate DTC. See «DIAGNOSTIC TROUBLE CODE IDENTIFICATION»(ref-34573-S18023964172001010900000) table. If no DTCs are present, diagnose by symptom. See «SYMPTOM IDENTIFICATION»(ref-34573-S42161417312001011700000) table. Problems listed are diagnosed using a scan tool. These problems may occur separately or in various combinations. When diagnosing a system with many apparent problems, a sequence of tests may be required. After repairs, recheck system.
| Affected System | (1) DTC |
|---|---|
| Air Bag | (2) |
| Cruise Control | Speed Control Solenoid Circuits |
| (3) Speed Control Switch Always High | |
| (3) Speed Control Switch Always Low | |
| (3) Speed Control Power Relay Circuit | |
| (3) Park/Neutral Position (PNP) Switch Stuck In Park Or In Gear (A/T Models) | |
| Instrument Cluster | All Gauges Inoperative |
| Any CCD Cluster Warning Light Or Indicator Inoperative | |
| Any Hard-Wired Cluster Warning Light Inoperative | |
| Instrument Cluster Dimming Inoperative | |
| One Gauge Not Operating Properly | |
| (4) No Vehicle Speed Sensor Signal | |
| Power Door Locks RKE | Power Door Lock Switch Failure |
| (1) Perform corresponding test(s) under affected system under SYSTEM TESTS . (2) For air bag system diagnostic trouble codes and testing procedures, see MITCHELL® AIR BAG SERVICE & REPAIR, DOMESTIC & IMPORTED manual. (3) For cruise control systems diagnostic trouble codes and testing procedures, see CRUISE CONTROL SYSTEMS - DAKOTA, DURANGO, RAM PICKUP, RAM VAN & RAM WAGON article. (4) For driveability diagnostic trouble codes and testing procedures, see appropriate SELF-DIAGNOSTICS - RAM PICKUP article in ENGINE PERFORMANCE. | |
| (1) | Perform corresponding test(s) under affected system under SYSTEM TESTS . |
| (2) | For air bag system diagnostic trouble codes and testing procedures, see MITCHELL® AIR BAG SERVICE & REPAIR, DOMESTIC & IMPORTED manual. |
| (3) | For cruise control systems diagnostic trouble codes and testing procedures, see CRUISE CONTROL SYSTEMS - DAKOTA, DURANGO, RAM PICKUP, RAM VAN & RAM WAGON article. |
| (4) | For driveability diagnostic trouble codes and testing procedures, see appropriate SELF-DIAGNOSTICS - RAM PICKUP article in ENGINE PERFORMANCE. |
DIAGNOSTIC TROUBLE CODE IDENTIFICATION
| Affected System | (1) Symptom |
|---|---|
| Chime | Chime Inoperative At All Times |
| Communication | Bus (+) &/Or Bus (-) Open |
| Bus (+) & Bus (-) Shorted Together | |
| Bus Bias Level Too Low/ Too High | |
| No Bus Bias | |
| No Response Air Bag Control Module | |
| No Response Central Timer Module | |
| No Response Controller Anti-Lock Brake | |
| No Response Instrument Cluster | |
| No Response ECM & PCM | |
| No Response Compass/Mini-Trip System | |
| No Response Radio | |
| No Termination | |
| Not Receiving Bus Messages Correctly | |
| Bus Short To 5 Volts | |
| Bus Short To Battery | |
| Bus Short To Ground | |
| Cruise Control | (2) Brake Sense Circuit |
| (2) Speed Control Switch Circuit | |
| (2) Speed Control Denied Message | |
| (2) Speed Control On-Off Circuit | |
| (2) Speed Control Operation | |
| Door Ajar System | Left Door Ajar Circuit Open |
| Right Door Ajar Circuit Open | |
| Left Door Ajar Circuit Shorted | |
| Right Door Ajar Circuit Shorted | |
| Electrically Heated Seat | (3) Heated Seat Relay Does Not Energize With Engine Running |
| Instrument Cluster | All Gauges Inoperative |
| Any CCD Cluster Warning Light Or Indicator Inoperative | |
| Any Hard-Wired Cluster Warning Light Inoperative | |
| One Gauge Not Operating Properly | |
| Overhead Console | Average Mph/Fuel ECON Inoperative Or Wrong, CMTC Fails To Respond To Instrument Cluster Dimming, CMTC Display Shows Fail, Elapsed Time Inoperative/Wrong, Switch On CMTC Inoperative, Trip Odometer Inoperative/Wrong |
| Distance To Empty Inoperative Or Wrong | |
| CMTC Segments Fail To Light Up | |
| Incorrect Temp Reading Beyond +/- 5; Temp Reading Does Not Update After 3 Minutes Over 30 MPH | |
| Repairing -40°F Or -40°C In CMTC Display | |
| Repairing 131°F Or 55°C In CMTC Display | |
| Power Door Locks | Power Door Lock Switch Failure |
| Power Door Unlock Switch Failure | |
| Automatic (Rolling) Door Locks Inoperative | |
| Door Lock Inhibit Inoperative | |
| Doors Fail To Lock And Unlock From Either Door Switch | |
| Doors Fail To Lock Or Unlock From One Switch Only | |
| Remote Keyless Entry Inoperative | |
| Vehicle Theft/Security | Cylinder Lock Switch Failure |
| Alarm Trips On Its Own | |
| Driver's Door Does Not Trip Alarm | |
| Headlights Fail To Flash When Alarm Is Tripped | |
| Horn Fails To Sound When Alarm Is Tripped | |
| System Will Not Arm Or Disarm With Door Key | |
| Passenger's Door Does Not Trip VTSS | |
| VTSS Indicator Inoperative | |
| Windshield Wipers | Wiper Park Switch Failure |
| Intermittent Wipers Inoperative | |
| No Wiper Actuation After Wash Button Pushed | |
| Wiper Speed Sensitive Feature Inoperative | |
| Wipers Fail To Park | |
| (1) Perform corresponding test(s) under affected system under SYSTEM TESTS . (2) For cruise control systems diagnostic trouble codes and testing procedures, see CRUISE CONTROL SYSTEMS - DAKOTA, DURANGO, RAM PICKUP, RAM VAN & RAM WAGON article. (3) For heated seat systems diagnostic trouble codes and testing procedures, see POWER SEATS - RAM PICKUP article. | |
| (1) | Perform corresponding test(s) under affected system under SYSTEM TESTS . |
| (2) | For cruise control systems diagnostic trouble codes and testing procedures, see CRUISE CONTROL SYSTEMS - DAKOTA, DURANGO, RAM PICKUP, RAM VAN & RAM WAGON article. |
| (3) | For heated seat systems diagnostic trouble codes and testing procedures, see POWER SEATS - RAM PICKUP article. |
SYMPTOM IDENTIFICATION
CLEARING DIAGNOSTIC TROUBLE CODES
To clear DTCs, connect scan tool to Data Link Connector (DLC). Establish communication with appropriate module and follow scan tool instructions.
