4.
After erase DTC, keep the vehicle condition within "the enable conditions" (Refer to "DTC Detecting Condition" table).
Once IPM receives taillamp switch working signal, it sends the signal to RAM by CAN communition. RAM turns on the left taillamp.
This code is set when left taillamp circuit is open for more than 150ms during left taillamp operating.
Item | Detecting Condition | Possible Cause |
DTC Strategy | ● Load Mornitoring | ● Poor connection ● Open in left taillamp circuit ● Faulty left taillamp ● Faulty RAM |
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. |
Connect GDS.
IG "ON" and engine "OFF".
Select "DTC Analysis" mode.
After erase DTC, keep the vehicle condition within "the enable conditions" (Refer to "DTC Detecting Condition" table).
Is the same DTC occurred again?
 | ▶ Go to next procedure. |
 | ▶ Fault is intermittent caused by poor contact in the sensor's and/or RAM's connector or was repaired and RAM 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. |
IG "OFF" and connect scantool
IG "ON" & ENG "OFF"
Select "Actuation Test" mode.
Execute "Taillamp and License Marker Lamp" test.
Is Taillamp and License Marker Lamp 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. |
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.
Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage.
Has a problem been found?
| ▶ Repair as necessary and go to "Verification of Vehicle Repair" procedure. |
| ▶ Go to "Left Taillamp Circuit Inspection" procedure. |
IG "OFF", disconnect battery (-) terminal.
Disconnect RAM connector.
Measure resistance between the Left Taillamp terminal of RAM harness connector and ground of the Left Headlamp High.
Specification: Approx. 1 Ω
Is the measured resistance within specification?
| ▶ Substitute with a known - good RAM and check for proper operation. If the problem is corrected, replace the RAM and go to "Verification of Vehicle Repair" procedure. |
| ▶ Repair open in circuit of Left taillamp or Left taillamp internal open, and go to "Verification of Vehicle Repair" procedure. |
After a repair, it is essential to verify that the fault has been corrected.
Connect scan tool and select "DTC Analysis" mode.
Clear the DTCs and Operate the vehicle within DTC Enable conditions in General information.
Is any DTC outputted again?
| ▶ Go to the applicable troubleshooting procedure. |
| ▶ System performing to specification at this time. |
