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) |
READ NEXT:
DESCRIPTION DTC No. Detection Item DTC Detection Condition Trouble Area Warning Indicate C1782 Power Source Voltage Malfunction While the power switch is on (IG), the voltage at ter
DESCRIPTION Steering sensor signals are sent to the absorber control ECU via CAN communication. When there is a communication malfunction, the malfunction will be detected by the diagnosis function.
DESCRIPTION
When the absorber control ECU has not acquired the vehicle identification information, DTC C1789 is stored. When the vehicle identification information is correctly acquired, this DTC i
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TERMINALS OF ECU BLIND SPOT MONITOR SENSOR LH (MASTER) Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition V1-3 (BIND) - V1-10 (BLGD) B - W-B Blind spot monitor main switch (combination switch assembly) indicator signal Power switch on (IG), bl
In EV drive mode, electric power is
supplied by the hybrid battery
(traction battery), and only the
electric motor (traction motor) is
used to drive the vehicle.
This mode allows you to drive in residential
areas early in the morning
and late at night, or in indoor parking
lots, etc., with
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