Dtc 121-Valve Relay Circuit Fault - SSANGYONG Rexton Y200 Manual

Step
1. Use a scan tool to clear all DTCs.
1
2. Road test the vehicle.
Does DTC 121 set again?
1. Check all system wiring harness connectors and
terminals, especially the electronic brake control
module (EBCM), for any problem that could cause
2
an intermittent condition.
2. Repair any intermittent problem found.
Is the repair complete?
Check fuse SB2.
3
Is fuse SB2 blown?
1. Check for a short circuit and repair it, if necessary.
4
2. Replace fuse SB2.
Is the repair complete?
1. Disconnect the valve relay.
2. Check the voltage between the valve relay connec-
5
tor terminal 15 and ground of EBCM.
Is the voltage equal to the specified valve?
Repair the open circuit between the valve relay
connector terminal 15 and terminal SB2 of EBCM.
6
Is the repair complete?
Replace the hydraulic modulator.
7
Is the repair complete?
SSANGYONG Y200
DTC 121 - Valve Relay Circuit Fault
Action
ABS AND TCS 4E-75
Value Yes
- Go to Step 3
- System OK
- Go to Step 4
- System OK
11 - 14 V Go to Step 7
- System OK
- System OK
No
Go to Step 2
-
Go to Step 5
-
Go to Step 6
-
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