Dtc C1063: Solenoid Valve Power Supply Driver Circuit - Suzuki GRAND VITARA Owner's Manual

DTC C1063: Solenoid Valve Power Supply Driver Circuit

Wiring Diagram
WHT/GRN
2
1
[A]: ABS hydraulic unit / control module connector
(viewed from terminal side)
1. Battery
2. Main fuse box
3. Ignition switch
4. Circuit fuse box (in junction block assembly)
DTC Detecting Condition
ABS control module monitors the voltage at the terminal of solenoid circuit constantly with ignition switch turned ON.
Also, immediately after ignition switch is turned ON, perform initial check as follows.
Switch solenoid valve power supply driver (transistor) in the order of OFF → ON and check if voltage changes to Low →
High. If anything faulty is found in the initial check and when the voltage is low with ignition switch turned ON, this DTC
will be set.
DTC Troubleshooting
Step
1 Was "ABS Check" performed?
2 Check battery voltage.
Is it about 11 V or higher?
3 Check main fuse for ABS solenoid and its terminal.
Is it in good condition?
4 1) Turn ignition switch to OFF position.
2) Disconnect ABS hydraulic unit / control module
connector.
3) Check for proper connection to ABS hydraulic unit /
control module at terminal "E03-14".
4) If OK, then measure voltage between connector terminal
"E03-14" and body ground.
Is it 10 – 14 V?
4
3
BLK/YEL GRN/ORN
WHT/RED
Action
6
12V
E03-7
E03-14
12V
8
5V
5
7
5. Solenoid valve power supply driver (transistor)
6. ABS hydraulic unit / control module assembly
7. To solenoid valve
8. ABS power control module
Yes
Go to Step 2.
Go to Step 3.
Go to Step 4.
Substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.
ABS: 4E-25
S5JB0A4504017
[A]
E03
14 1
15 2
16 3
17 4
18 5
19 6
20 7
21 8
22 9
23 10
24 11
25 12
26 13
I5JB0A450018-02
No
Go to "ABS Check: ".
Check charging system
referring to "Battery
Inspection: in Section
1J" and "Generator Test
(Undercharged Battery
Check): in Section 1J".
Replace fuse and check
for short circuit to
ground.
"WHT/BLU" circuit
imperfect short to
ground.