C1795

SUSPENSION CONTROL: ACTIVE HEIGHT CONTROL SUSPENSION: C1795: Access Mode Switch Circuit (Test Mode DTC)

DTC C1795 - Access Mode Switch Circuit (Test Mode DTC)

DESCRIPTION

According to the signal from the easy access mode switch, the suspension control ECU turns easy access mode control on/off.






WIRING DIAGRAM





INSPECTION PROCEDURE
NOTICE:
- Before performing troubleshooting, inspect the connectors of related circuits.
- If the suspension control ECU or height control sensor is replaced, the vehicle height offset calibration must be performed Testing and Inspection.

PROCEDURE

1. READ VALUE USING TECHSTREAM (ACCESS MODE SWITCH)
(a) Turn the engine switch off.
(b) Connect the Techstream to the DLC3.
(c) Turn the engine switch on (IG) and the Techstream on.
(d) Enter the following menus: Chassis / AHC / Data List.
(e) According to the display on the Techstream, read the Data List.

AHC





OK:
On the Techstream screen, item changes between ON and OFF according to switch operation.
NG -- INSPECT COMBINATION SWITCH (EASY ACCESS MODE SWITCH)
OK -- Continue to next step.
2. TEST MODE INSPECTION
(a) Refer to the Test Mode Procedure and perform the signal check. Check that test mode DTC C1795 is cleared Test Mode Procedure.

Result





B -- USE SIMULATION METHOD TO CHECK
A -- REPLACE SUSPENSION CONTROL ECU
3. INSPECT COMBINATION SWITCH (EASY ACCESS MODE SWITCH)
(a) Remove the combination switch Removal.





(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:






NG -- REPLACE COMBINATION SWITCH
OK -- Continue to next step.
4. CHECK HARNESS AND CONNECTOR (SUSPENSION CONTROL ECU - SWITCH)
(a) Disconnect the K30 ECU connector.
(b) Disconnect the E87 switch connector.
(c) Measure the resistance according to the value(s) in the table below.





Standard Resistance:






NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- REPLACE SUSPENSION CONTROL ECU