6C-25 Power Assisted Steering System:
DTC C1155: P/S Control Module Failure
S4RS0A6304022
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
Inspection of P/S Control Module and Its
Circuits
S4RS0A6304023
The P/S control module (1) and its circuits can be
checked at the P/S control module wiring couplers (2) by
measuring voltage and resistance.
CAUTION:
P/S control module cannot be checked by
itself. It is strictly prohibited to connect
voltmeter or ohmmeter to the P/S control
module with connectors disconnected from
the P/S control module.
LT GRN/BLK
E52-1
E49-2
E49-1
BLK
GRN
GRN
BLK
1
2
[B]
[A]
1
2
3
4
5
6
7
8
9
11
10
12 13 14 15 16 17 18 19 20
5
3
4
4
4
4
1
2
I4RS0B630010-
[A]: Connector “E52” (viewed from harness side)
2. Ignition switch
5. P/S control module
[B]: Connector “E49” (viewed from harness side)
3. Junction block assembly
1. Main fuse
4. Fuse
DTC detecting condition
Trouble area
Battery voltage is higher than upper limit voltage for P/S
control module diagnosis or internal failure of controller
(1 driving cycle detection logic)
• Overcharged Battery
• P/S control module
Step
Action
Yes
No
1
Was “EPS System Check” performed?
Go to Step 2.
2
Measure voltage between positive battery terminal and
vehicle body ground with engine running.
Is voltage 15.5 V or less?
Substitute the original P/
S control module with a
known-good P/S control
module, and then
recheck.
Check charging system
referring to “Generator
Test (Overcharged
Battery Check): in
Section 1J”.
2
1
I4RS0A630008-
Содержание SWIFT RS415 2017
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