DTC 58-42 Map Disc Read Error; DTC 80-42 Map Disc Read Error: Description

WARNING: This page is about a different car, the 2006 Lexus RX 400h. However, it is still accessible from the selected car via links, so may be relevant.

DTC DETECTION CONDITION CHART

DTC No.	DTC Detection Condition	Trouble Area
58-42	Player error Scratches or dirt on the disc Access to an invalid address due to software error	Map disc Navigation ECU
80-42	Player error Scratches or dirt on the disc Access to an invalid address due to software error	Map disc Navigation ECU

HINT:

After the inspection is completed, clear the DTCs.

CHECK MAP DISC
1. Check that the map disc is not deformed or cracked.
  OK: No deformations or cracks on the map disc.
NG: Go to step 4

Fig 1: Ensure CD Is Not Cracked Or Deformed
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

OK: GO TO NEXT STEP.
DISC CLEANING
1. Disc cleaning
  1. If dirt is on the disc surface, wipe it clean with a soft cloth from the inside to the outside in a radial direction.
    NOTE: Do not use a conventional record cleaner or anti-static preservative.
    
    Fig 2: Cleaning Disc
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
DTC CLEAR AND RECHECK
1. Clear the DTCs (See DTC CHECK / CLEAR ).
2. Recheck for DTCs and check if the same trouble occurs again.
  OK: Same problem does not occur.
OK: END

NG: GO TO NEXT STEP.
REPLACE MAP DISC
1. Replace the map disc.
2. Clear the DTCs and recheck for DTCs.
3. Check if the same trouble occurs again.
  OK: Same problem does not occur.
OK: END

NG: REPLACE NAVIGATION ECU