General Description

Once IPM receives right headlamp low switch working signal, it sends the signal to FAM by CAN communition. FAM turns on right headlamp low.

DTC Description

This code is set when right headlamp low circuit is open for more than 150ms during right headlamp low operating.

DTC Detecting Condition

Item

Detecting Condition

Possible Cause

DTC Strategy

Load Mornitoring

Poor connection

Open in right headlamp low circuit

Faulty right headlamp low

Faulty FAM

Enable Conditions

IG KEY ON.

Threshold Value

It is normal if output voltage is 12V.

Diagnostic Time

Immediately

DTC Erasing Time

DTC is erased immediately after trouble fixed.

Diagnostic Circuit Diagram
Scantool Data Analysis
1.

Connect GDS.

2.

IG "ON" and engine "OFF".

3.

Select "DTC Analysis" mode.

4.

After erase DTC, keep the vehicle condition within "the enable conditions" (Refer to "DTC Detecting Condition" table).

5.

Is the same DTC occurred again?

▶ Go to next procedure.

▶ Fault is intermittent caused by poor contact in the sensor's and/or FAM's connector or was repaired and FAM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.

■ Check right headlamp low
6.

IG "OFF" and Connect GDS.

7.

IG "ON" & ENG "OFF"

8.

Select "Current Data" mode.

9.

Execute "right headlamp low" test.

10.

Is right headlamp high working normal ?

▶ Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and then go to "Verification of Vehicle Repair" procedure.

▶ Go to next procedure.

Terminal and Connector Inspection
1.

Many malfunctions in the electrical system are caused by poor harness(es) and terminals. Faults can also be caused by interference from other electrical systems, and mechanical or chemical damage.

2.

Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.

3.

Has a problem been found?

▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure.

▶ Go to "Right Headlamp Low Circuit Inspection" procedure.

Right Headlamp Low Circuit Inspection
■ Check open in harness
1.

IG "OFF", disconnect battery (-) terminal.

2.

Disconnect FAM connector..

3.

Measure resistance between the Right Headlamp Low terminal of FAM harness connector and ground of the Right Headlamp Low

Specification: Approx. 1 Ω

4.

Is the measured resistance within specification?

▶ Substitute with a known - good FAM and check for proper operation.

If the problem is corrected, replace the FAM and go to "Verification of Vehicle Repair" procedure.

▶ Repair open in circuit of Right Headlamp Low or Right Headlamp Low internal open, and go to "Verification of Vehicle Repair" procedure.

Verification of Vehicle Repair

After a repair, it is essential to verify that the fault has been corrected.

1.

Connect scan tool and select "DTC Analysis" mode.

2.

Clear the DTCs and Operate the vehicle within DTC Enable conditions in General information.

3.

Is any DTC outputted again?

▶ Go to the applicable troubleshooting procedure.

▶ System performing to specification at this time.

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