System Tests: Notes
CAUTION:
When battery is disconnected or modules are replaced, 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.
NOTE:
When instrument cluster is replaced, Passive Anti-Theft System (PATS) system must be reconfigured. For programming and reconfiguring procedures, see COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION.
NOTE:
Before beginning system tests, perform TROUBLE SHOOTING
.
NOTE:
Test procedures are written specifically for New Generation Star (NGS) tester. Generic scan tools may not have the capability of performing all the same functions. Refer to scan tool manufacturer's instructions.
NOTE:
After repairs are complete, ensure all components are properly installed and all harness connectors are connected properly. Repeat data link diagnostic test. See DATA LINK DIAGNOSTIC TEST
under SELF-DIAGNOSTIC SYSTEM in MODULE COMMUNICATIONS NETWORK - LS article.
SYMPTOM INDEX
| Symptom | Perform Test | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| No Communication With Instrument Cluster | A | ||||||||||
| No Communication With Front Electronic Module | B | ||||||||||
| No Communication With Rear Electronic Module | C | ||||||||||
| Fuel Gauge Inaccurate | D | ||||||||||
| Temperature Gauge Inaccurate | E | ||||||||||
| Oil Pressure Indicator Never/Always On | F | ||||||||||
| Speedometer Inoperative | G | ||||||||||
| Safety Belt Warning Indicator Inoperative/Erratic | H | ||||||||||
| Door Ajar Indicator Inoperative/Erratic | I | ||||||||||
| Charge System Warning Indicator Never/Always On | J | ||||||||||
| Brake Warning Indicator Always On | K | ||||||||||
| High Beam Indicator Never/Always On | L | ||||||||||
| Low Washer Indicator Never/Always On | M | ||||||||||
| ABS Warning Indicator Never/Always On | N | ||||||||||
| Traction Control Warning Display Never/Always On | O | ||||||||||
| Light Outage Indicator Never/Always On | P | ||||||||||
| Malfunction Indicator Light Never/Always On | Q | ||||||||||
| Turn/Hazard Indicator Never/Always On | R | ||||||||||
| Steering Column Lock Warning Indicator Never/Always On | S | ||||||||||
| Tachometer Inoperative | T | ||||||||||
| Cruise Control Indicator Never/Always On | U | ||||||||||
| Transmission Range Indicator Never/Always On | V | ||||||||||
| Low Fuel Indicator Never/Always On | W | ||||||||||
| Engine Temperature Indicator Never/Always On | X | ||||||||||
| Air Bag Indicator Never On | Y | ||||||||||
| Air Bag Indicator Always On | (1) | ||||||||||
| Odometer Inoperative | Z | ||||||||||
| No Communication With Remote Emergency Satellite Cellular Unit | AA | ||||||||||
| Message Center Display Blank | (2) | ||||||||||
| Message Center Not Operating Properly | AB | ||||||||||
| Message Center Switch Not Operating Properly | AC | ||||||||||
| Low Fuel Display Not Operating Properly | AD | ||||||||||
| Oil Life Status/AC Filter Life Indicator Inoperative | AE | ||||||||||
| Light Outage Warning Indicator Inoperative | AF | ||||||||||
| Washer Fluid Level Display Not Operating Properly | AG | ||||||||||
| Brake Fluid Level Display Not Operating Properly | AH | ||||||||||
| Data Status Message Displayed For Door Ajar | AI | ||||||||||
| Data Status Message Displayed For RESCU | (3) | ||||||||||
| Data Status Message Displayed For Traction Control | O | ||||||||||
| All Chimes Inoperative | (2) | ||||||||||
| Chime Sound With Door Open, Lights Off & Key Removed | AJ | ||||||||||
| Seat Belt Warning Chime Not Operating Properly | AK | ||||||||||
| Key-In-Ignition Chime Not Operating Properly | AL | ||||||||||
| Headlight Reminder Not Operating Properly | AM | ||||||||||
| Air Bag Warning Chime Not Operating Properly | AN | ||||||||||
| Fail-Safe Cooling Chime Not Operating Properly | AO | ||||||||||
| Turn Signal Chime Not Operating Properly | AP | ||||||||||
| Instrument Cluster Illumination Inoperative | AQ | ||||||||||
| Climate Control Illumination Inoperative | (4) | ||||||||||
| Audio System Illumination Inoperative | (5) | ||||||||||
| All LEDs & Incandescent Lights Inoperative | AR | ||||||||||
| All LEDs Or Incandescent Lights Inoperative | AS | ||||||||||
| All LEDs Or Incandescent Lights Always On | AT | ||||||||||
| All LEDs Or Incandescent Lights Always On | AU | ||||||||||
| Single Dash Light Inoperative | AV | ||||||||||
| Instrument Panel Does Not Dim | AW | ||||||||||
|
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