Dtc C1155: P/S Control Module Failure - Suzuki Swift Sport 2004 Service & Repair Manual

DTC C1155: P/S Control Module Failure

Wiring Diagram
Refer to "DTC C1153: P/S Control Module Power Supply Circuit Voltage Low".
DTC Detecting Condition and Trouble Area
DTC detecting condition
Internal memory (EEPROM) is data error.
(In this case, MIL does not light up)
or
Internal circuit is faulty.
or
Power supply voltage of P/S control module exceeded
17.5 V.
(1 driving cycle detection logic)
DTC Troubleshooting
Step
1 Was "EPS System Check" performed?
2 P/S control module power supply and ground circuit
check
Check power supply circuit and ground circuit for P/S control
module referring to "P/S Control Module Power Supply and
Ground Circuit Check".
Is check result in good condition?
3 Battery voltage check
1) Check voltage between positive (+) battery terminal and
vehicle body ground with engine speed at 3000 rpm.
Is voltage 15.5 V or less?
Action
Power Assisted Steering System:
Trouble area
• Overcharged Battery
• P/S control module
Yes
Go to Step 2.
Go to Step 3.
Replace P/S control
module.
6C-33
S7RS0B6304021
No
Go to "EPS System
Check".
Repair or replace
defective circuit.
Check charging system
referring to "Generator
Test (Overcharged
Battery Check) in
Section 1J".