Do you have access to Mitchell1 Prodemand, or eautorepair.net DIY? If you are willing to share user/password (we can pay), please get in contact with us ASAP (truly, it is urgent): email operation-charm [[at]] tuta.io or click to submit anonymously
Pinpoint Test Q: The High Beam Indicator Is Never/Always On
Instrumentation, Message Center and Warning Chimes
Pinpoint Tests
Pinpoint Test Q: The High Beam Indicator Is Never/Always On
Normal Operation
When the high beams are turned on, the Smart Junction Box (SJB) sends a signal to the Instrument Cluster (IC) through the Medium Speed Controller Area Network (MS-CAN) communication bus to illuminate the high beam indicator. If the high beam status message is missing for more than 5 seconds, the IC sets DTC U0140 in continuous memory and defaults the high beam indicator off.
NOTE: If DTC U0140 is set in the IC, other observable symptoms may also be present such as Tire Pressure Monitoring System (TPMS) warning indicator, backlighting and door ajar indication.
This pinpoint test is intended to diagnose the following:
- SJB
- IC
PINPOINT TEST Q: THE HIGH BEAM INDICATOR IS NEVER/ALWAYS ON
-------------------------------------------------
Q1 CHECK THE HIGH BEAM HEADLAMPS OPERATION
- Ignition ON.
- Place the headlamps in the HIGH BEAM position. Observe the high beam headlamps.
- Do the high beam headlamps operate correctly?
Yes
GO to Q2.
No
REFER to Lighting and Horns.
-------------------------------------------------
Q2 CARRY OUT THE IC INDICATOR LAMP CONTROL ACTIVE COMMAND USING THE SCAN TOOL
- Enter the following diagnostic mode on the scan tool: IC DataLogger.
- Select the IC high beam indicator (HIGH_BEAM) active command and command the high beam indicator on and off. Observe the high beam indicator.
- Does the high beam indicator illuminate when commanded on and turn off when commanded off?
Yes
GO to Q3.
No
INSTALL a new IC. REFER to Instrument Cluster (IC) Instrument Cluster (IC). TEST the system for normal operation.
-------------------------------------------------
Q3 RETRIEVE THE RECORDED DTCs FROM THE IC SELF-TEST
- Check for recorded IC DTCs from the self-test.
- Is DTC U0140 recorded?
Yes
GO to Pinpoint Test AX. Pinpoint Tests AX: DTC U0140
No
INSTALL a new SJB. REFER to Body Control Systems. TEST the system for normal operation.
-------------------------------------------------