Suzuki SWIFT RS415 2017, Руководство по обслуживанию

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Power Assisted Steering System: 6C-20
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
DTC detecting condition Trouble area
DTC C1121:
No vehicle speed signal is inputted to P/S control module
in either one of the following two conditions
(1 driving cycle detection logic)
1. More than 60 seconds pass at more than 4000 rpm
engine speed before a lapse of 5 minutes from the
engine start
2. More than 60 seconds pass at more than 2500 rpm
engine speed after a lapse of 5 minutes from the
engine start
DTC C1123:
No vehicle speed signal is inputted to P/S control module
in either one of the following two conditions
(3 driving cycle detection logic)
1. More than 30 seconds pass at more than 4000 rpm
engine speed before a lapse of 5 minutes from the
engine start
2. More than 30 seconds pass at more than 2500 rpm
engine speed after a lapse of 5 minutes from the
engine start
DTC C1124:
Vehicle speed is inputted to P/S control module as having
decelerated by more than specified deceleration and
lower than 5 km/h vehicle speed continued for 5 seconds
after deceleration
(1 driving cycle detection logic)
• High resistance, open or short in VSS circuit
• VSS
• ECM
• P/S control module
Step Action Yes No
1 Was “EPS System Check” performed? Go to Step 2. Go to “EPS System
Check: ”.
2 DTC Check for ECM referring to “DTC Check: in Section
1A”.
Is DTC P0500 detected?
Go to “DTC P0500:
Vehicle Speed Sensor
(VSS) Malfunction: in
Section 1A”. Go to Step 3.
3 1) Check for proper connection to the P/S control module
and ECM at each “PPL” wire terminal (P/S control
module side: “E52-4” terminal, ECM side: Refer to “ECM
Input / Output Circuit diagram” under “Electronic Control
System Description: in Section 1A”).
2) If they are OK, check for high resistance, open or short
to power circuit or ground in “BRN” wire circuit.
Is check result in good condition?
Check P/S control
module power and
ground circuit. If OK,
substitute the original P/
S control module with a
known-good P/S control
module, and then
recheck. Repair “PPL” wire
circuit.