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Home >> Toyota >> 2008 >> FJ Cruiser RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (Suspension Control) >> Active Height Control Suspension >> DTC C1741/41: Compressor Relay Coil Malfunction >> Description

DTC C1741/41: Compressor Relay Coil Malfunction: Description

WARNING: This page is about a different car, the 2007 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

This relay is to supply power source to the pump and motor. The relay is stays ON while the height control is operated.

HINT:

"Compressor relay" refers to the AHC motor relay.

DTC DETECTION CONDITION TABLE

DTC No. DTC Detection Condition Trouble Area
C1741/41 After the condition that the upper reaches voltage of the motor relay solenoid is 2 V or less when motor relay is ON continued for 40 +/- 10 msec. and when turning on the electricity 1 sec. later and detecting the short circuit condition 2 times continuously.
  • AHC motor relay
  • Suspension control ECU
  • Wire harness

Fail-safe function:

If a trouble occurs in the AHC motor relay circuit, the height control is prohibited after adjusting the vehicle to the standard height in case that the height is higher than the standard or to the lowest wheel of the 4 wheels in case that the height is lower than the standard.