Code :

Code: E7-21
Description: LSU laser detection error (C)
Causes: Laser optical axis misalignment Reduced laser power, lighting error, laser diode trouble. LSU harness, connector trouble LSU trouble
Remedy: Use SIM61-1 to check the operation of the LSU. Check or replace the LSU control PWB. Check connection of the LSU harness. Replace the LSU.

Code: E7-22
Description: LSU laser detection error (M)
Causes: Laser optical axis misalignment Reduced laser power, lighting error, laser diode trouble. LSU harness, connector trouble LSU trouble
Remedy: Use SIM61-1 to check the operation of the LSU. Check or replace the LSU control PWB. Check connection of the LSU harness. Replace the LSU.

Code: E7-23
Description: LSU laser detection error (Y)
Causes: Laser optical axis misalignment Reduced laser power, lighting error, laser diode trouble. LSU harness, connector trouble LSU trouble
Remedy: Use SIM61-1 to check the operation of the LSU. Check or replace the LSU control PWB. Check connection of the LSU harness. Replace the LSU.

Code: E7-24
Description: LSU LD driver error (K)
Causes: When lighting the LSU LD, initialization of the LD driver is not performed normally. Harness/connector trouble between the LD PWB and the LSU mother PWB. LD PWB trouble. LSU mother PWB trouble.
Remedy: Use SIM61-1 to check the operation of the LSU. Check the LSU, and replace if necessary. Check the LSU mother PWB, and replace if necessary. Check connection of the harness/connector between the LD PWB and the LSU mother PWB.

Code: E7-25
Description: LSU LD driver error (C)
Causes: When lighting the LSU LD, initialization of the LD driver is not performed normally. Harness/connector trouble between the LD PWB and the LSU mother PWB. LD PWB trouble. LSU mother PWB trouble.
Remedy: Use SIM61-1 to check the operation of the LSU. Check the LSU, and replace if necessary. Check the LSU mother PWB, and replace if necessary. Check connection of the harness/connector between the LD PWB and the LSU mother PWB.

Code: E7-26
Description: LSU LD driver error (M)
Causes: When lighting the LSU LD, initialization of the LD driver is not performed normally. Harness/connector trouble between the LD PWB and the LSU mother PWB. LD PWB trouble. LSU mother PWB trouble.
Remedy: Use SIM61-1 to check the operation of the LSU. Check the LSU, and replace if necessary. Check the LSU mother PWB, and replace if necessary. Check connection of the harness/connector between the LD PWB and the LSU mother PWB.

Code: E7-27
Description: LSU LD driver error (Y)
Causes: When lighting the LSU LD, initialization of the LD driver is not performed normally. Harness/connector trouble between the LD PWB and the LSU mother PWB. LD PWB trouble. LSU mother PWB trouble.
Remedy: Use SIM61-1 to check the operation of the LSU. Check the LSU, and replace if necessary. Check the LSU mother PWB, and replace if necessary. Check connection of the harness/connector between the LD PWB and the LSU mother PWB.

Code: E7-28
Description: LSU - PCU connection error
Causes: Communication error between the CPU in the PCU PWB and the LSU control ASIC. Improper connection of the communication connector between the PCU PWB and the LSU control PWB (interface PWB). Harness trouble between the PCU PWB and the LSU control PWB (interface PWB) PCU PWB trouble. LSU control PWB trouble. LSU trouble. LSU mother PWB trouble.
Remedy: Check connection of the connector and the harness between the PCU PWB and the LSU control PWB (interface PWB). Replace the LSU mother PWB. Replace the PCU PWB. Replace the LSU. Replace the LSU control PWB.