Daytime Running Lamps - SRT Only
NOTE:
Dedicated Daytime Running Lamps (DRL) are used only on SRT vehicles. Each DRL is illuminated by several Light-Emitting Diode (LED) units that are soldered to the electronic circuit board within the DRL housing. If none of the LED units within a DRL illuminate, test and repair the DRL ground or feed circuits if required. If some of the DRL LED units operate and some do not, the DRL assembly must be replaced with a new unit.
| CONDITION | POSSIBLE CAUSES | CORRECTION |
|---|---|---|
| DRL DOES NOT ILLUMINATE | 1. Ineffective ground circuit. | 1. Test and repair open ground circuit if required. |
| 2. Ineffective feed circuit. | 2. Test and repair open feed circuit if required. | |
| 3. Ineffective BCM inputs or outputs. | 3. Use a diagnostic scan tool to test the BCM inputs and outputs. Refer to the appropriate diagnostic information. | |
| 4. Ineffective DRL unit. | 4. Test and replace the DRL unit if required. | |
| DRL DOES NOT EXTINGUISH | 1. Ineffective feed circuit. | 1. Test and repair shorted feed circuit if required. |
| 2. Ineffective BCM inputs or outputs. | 2. Use a diagnostic scan tool to test the BCM inputs and outputs. Refer to the appropriate diagnostic information. | |
| DRL DOES NOT SWITCH BETWEEN HIGH INTENSITY (DRL MODE) AND LOW INTENSITY (ACCENT MODE) OPERATION (DOMESTIC MARKET VEHICLES ONLY) | 1. Ineffective right or left park lamp circuit. | 1. Test and repair open or shorted right or left park lamp circuit if required. |
| 2. Ineffective BCM inputs or outputs. | 2. Use a diagnostic scan tool to test the BCM inputs and outputs. Refer to the appropriate diagnostic information. | |
| 3. Ineffective DRL unit. | 3. Test and replace the DRL unit if required. |