NG -- REPLACE HEIGHT CONTROL SWITCH (LUGGAGE COMPARTMENT) See: Sensors and Switches/Sensors and
Switches - Steering and Suspension/Sensors and Switches - Suspension/Suspension Mode Switch/Service and Repair/Height Control
Switch (for Luggage Compartment)/Removal
OK -- Continue to next step.
2. CHECK HARNESS AND CONNECTOR (SUSPENSION CONTROL ECU - HEIGHT CONTROL SWITCH)
(a) Disconnect the A56 ECU connector.
(b) Disconnect the O26 height control switch (luggage compartment) connector.
(c) Measure the resistance according to the values in the table below.
Standard resistance:
Text in Illustration
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE SUSPENSION CONTROL ECU
From 08/2009
SUSPENSION CONTROL: AIR SUSPENSION SYSTEM: C1799: Luggage Room Mode Switch Circuit (Test Mode DTC)
C1799 - Luggage Room Mode Switch Circuit (Test Mode DTC)
DESCRIPTION
Pressing the height control switch (luggage compartment) for approximately 1 second switches modes. This switch can be operated with the engine
on or off, the shift lever in P and the back door open. When the engine switch is off, this switch can be only be used to lower the vehicle height. If
the switch is pressed while the vehicle height is changing, vehicle height control will be cancelled.
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