Lexus NX: Suspension Control ECU Malfunction (C1781)
DESCRIPTION
If a malfunction in the absorber control ECU is detected, DTC C1781 is stored.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area | Warning Indicate |
C1781 | Suspension Control ECU Malfunction | Either condition is met: -
A nonvolatile memory write or read error occurs.
-
A CAN communication register is stuck.
-
An overheat protection function malfunction occurs.
| -
Absorber control ECU
-
CAN communication system
| Does not come on |
CAUTION / NOTICE / HINT
PROCEDURE
1. | CHECK FOR DTC (CAN COMMUNICATION SYSTEM) |
(a) Check for DTCs.
Click here
Chassis > Air suspension > Trouble Codes
Result | Proceed to |
CAN DTC is not output | A |
CAN DTC is output | B |
A | | REPLACE ABSORBER CONTROL ECU |
B | | GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING) |
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