Subaru Crosstrek Service Manual: Dtc b28b8 eyesight steering switch 1
EyeSight (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)
DTC B28B8 EyeSight STEERING SWITCH 1
Detected when EyeSight steering switch is not installed or has malfunction, or when the harness is faulty or open-circuited or in stuck ON condition.
DTC detecting condition:
• Wiring of the EyeSight steering switch is not connected.
• EyeSight steering switch circuit is open.
• EyeSight steering switch circuit stays ON.
Trouble symptom:
All functions of EyeSight system do not operate.
Wiring diagram:
EyeSight System EyeSight System > WIRING DIAGRAM">
| STEP | CHECK | YES | NO |
1.CHECK CURRENT DATA.
Confirm the current data «Cruise Control SW Voltage (Port14)» and «Cruise Control SW Voltage (Port16)» of EyeSight using Subaru Select Monitor. Read Current Data">
Does the display change according to the EyeSight steering switch operation?
Even if DTC is displayed, the circuit has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.
NOTE:
In this case, temporary poor contact of connector, or temporary open or short circuit of harness may be the cause.
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B28B8 EyeSight STEERING SWITCH 1">Go to Step 2.
2.CHECK HARNESS.
1) Disconnect the stereo camera connector and EyeSight steering switch connector.
2) Using the tester, measure the resistance between stereo camera connector and EyeSight steering switch connector.
Connector & terminal
(ST3) No. 4 — (R137) No. 16:
(ST3) No. 3 — (R137) No. 14:
(ST3) No. 9 — (R137) No. 15:
Is the resistance less than 1 ??
Diagnostic Procedure with Diagnostic Trouble Code (DTC) > DTC B28B8 EyeSight STEERING SWITCH 1">Go to Step 3.
Repair or replace an open circuit in harness between the stereo camera connector and the EyeSight steering switch connector.
3.CHECK HARNESS.
Using the tester, measure the resistance between EyeSight steering switch connector and chassis ground.
Connector & terminal
(ST3) No. 4 — Chassis ground:
(ST3) No. 3 — Chassis ground:
(ST3) No. 9 — Chassis ground:
Is the resistance 1 M? or more?
Check the EyeSight steering switch. Switches and Harness">
Repair or replace the short circuit to ground in harness between the stereo camera connector and the EyeSight steering switch connector.
Dtc b28b7 ldp off switch
EyeSight (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B28B7 LDP OFF SWITCHDetected when lane departure warning OFF switch circuit is not installed, open-circuited, or ...
Dtc b28b9 eyesight steering switch 2
EyeSight (DIAGNOSTICS) > Diagnostic Procedure with Diagnostic Trouble Code (DTC)DTC B28B9 EyeSight STEERING SWITCH 2Detected when steering switch for EyeSight is not installed, is open-circuited or ...
Other materials:
Removal
CRUISE CONTROL SYSTEM > Cruise Control Command SwitchREMOVALCAUTION:Before handling the airbag system components, refer to “CAUTION” of “General Description” in “AIRBAG SYSTEM”. General Description > CAUTION">1. Set the tire to the straight-ahead po ...
Removal
DRIVE SHAFT SYSTEM > Front Drive ShaftREMOVAL1. Lift up the vehicle, and then remove the front wheels.2. Remove the axle nut.CAUTION:Do not loosen the axle nut while the front axle is loaded. Doing so may damage the hub unit bearing.(1) Lift the crimped section of axle nut.(2) Remove the axle nut ...
Subaru select monitor Operation
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS) > Subaru Select MonitorOPERATIONFor detailed operation procedures, refer to “Application help”.NOTE:When initialization communication using Select Monitor is impossible, perform diagnosis according to “Diagnostic Procedure Used When Abnormal ...
