Edge AWD V6-3.5L (2009)
Daytime Running Lamp: Pinpoint Tests
Daytime Running Lamps (DRL)
Pinpoint Tests
Pinpoint Test AH: The Daytime Running Lamps (DRL) Are Inoperative
Normal Operation
When the ignition switch is in the RUN position, the headlamps are not on (from the autolamp system or manual control from the headlamp switch), the
transaxle is not in PARK (P), the Smart Junction Box (SJB) provides a Pulse Width Modulated (PWM) voltage to the low beam headlamps. This
illuminates the headlamps at a reduced intensity.
This pinpoint test is intended to diagnose the following:
-
Exterior lighting system input/output
-
SJB configuration
-
Ignition switch input
-
Transaxle gear input
-
SJB
PINPOINT TEST AH: THE DRL ARE INOPERATIVE
-------------------------------------------------
AH1 VERIFY THE DRL OPERATION
-
Place the gear selector lever in any gear other than PARK (P).
-
Are the Daytime Running Lamps (DRL) illuminated?
Yes
The system is operating correctly. INFORM the customer of the conditions required for the DRL to operate correctly.
No
GO to AH2.
-------------------------------------------------
AH2 CHECK THE OPERATION OF THE HEADLAMPS
-
Place the headlamp switch in the HEADLAMPS ON position and observe the headlamps.
-
Do the headlamps operate correctly?
Yes
GO to AH3.
No
REFER to Headlamps. See: Headlamp/Testing and Inspection
-------------------------------------------------
AH3 CHECK THE IGNITION SWITCH INPUT
-
Place the headlamp switch in the OFF position.
-
Enter the following diagnostic mode on the scan tool: SJB DataLogger.
-
Monitor the SJB ignition switch PIDs (IGN_O_ECU, IGN_A_ECU, IGN_R_ECU, and IGN_S_ECU) while cycling the ignition switch through
all its positions.
-
Does the PID agree with the ignition switch positions?
Yes
GO to AH4.
