Dtc C1018: Brake Fluid Level Switch Failure - Suzuki Grand Vitara 2011 Manual

DTC C1018: Brake Fluid Level Switch Failure

Wiring Diagram
1
2
12V
[B]
[A]: ESP® control module connector (viewed from terminal side)
[B]: BCM connector (viewed from harness side)
1. BCM
2. CAN driver
3. Junction connector
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
ESP® control module received the following signals from
BCM.
• Brake fluid level is too low.
• Input voltage of brake fluid level switch to BCM is low.
DTC Troubleshooting
Step
1 Was "Electronic Stability Program Check" performed?
2 Check brake fluid level
1) Check brake fluid level in reservoir.
Is brake fluid level upper than the minimum level?
3 DTC check for ESP®
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC for ESP®.
Is DTC U1073 and/or U1140 detected?
3
G31-1 RED
G31-3 WHT
5
G31-7 RED/BLK
20 19 18 17 16 15 14 13 12
40 39 38 37 36 35 34
Action
6
4
RED E53-13
2
WHT E53-44
G31
11 10 9 8 7 4 3 2
28 27 26 25 24 23 22
4. Other control modules are communicated with CAN
5. Brake fluid level switch
6. ESP® hydraulic unit control module assembly
• Brake fluid level
• Brake fluid level switch circuit
• Brake fluid level switch
• CAN communication circuit
• BCM
• ESP® control module
Go to Step 2.
Go to Step 3.
Go to applicable DTC
diag. flow.
Electronic Stability Program:
[A]
E53
32 1
17
33 2
18
34 3
19
35 4
20
36 5
21
37 6
22
38 7
23
39 8
24
40 9
25
41 10
26
42 11
27
43 12
28
44 13
29
45 14
30
46 15
31
1
47 16
21
Trouble Area
Yes
Go to "Electronic
Stability Program
Check".
Replenish brake fluid to
reservoir.
Go to Step 3.
4F-27
S6JB0A4604015
I6JB01460017-02
No