Suzuki Swift Sport 2004 Service & Repair Manual page 905

DTC Troubleshooting
Step
1 Was "EPS System Check" performed?
2 DTC check
Is DTC C1113, C1114 and/or DTC C1119 indicated together?
3 Torque sensor internal failure signal voltage check
1) Check for P/S control module connector ("E52") for
proper connection.
2) Check for voltage between "E52-16" ("YEL" wire)
terminal and body ground with ignition switch ON.
Is voltage 0 – 1 V?
4 Torque sensor internal failure signal circuit check
1) With ignition switch turned OFF, disconnect torque
sensor connector.
2) Check for voltage between "E53-1" ("YEL" wire) terminal
and body ground with ignition switch ON.
Is it about 5 V?
5 Torque sensor internal failure signal circuit check
1) Disconnect P/S control module connector.
2) Check that torque sensor failure signal circuit is as
follows.
• Insulation resistance of wire harness is infinity
between "Torque sensor internal failure signal circuit"
terminal and other terminal at torque sensor
connector.
Is circuit in good condition?
6 Torque sensor internal failure signal circuit check
1) Disconnect P/S control module connector.
2) Check that torque sensor failure signal circuit is as
follows.
• Insulation resistance of wire harness is infinity
between "Torque sensor internal failure signal circuit"
terminal and other terminal at torque sensor
connector.
• Wiring harness resistance of "Torque sensor internal
failure signal circuit" is less than 1 Ω.
Is circuit in good condition?
7 Torque sensor signal circuit check
1) Check for torque sensor signal circuit referring to Step 3)
– 8) of "DTC C1113: Steering Torque Sensor (Main and
Sub) Circuit Correlation".
Is torque sensor and its circuit in good condition?
Action
Power Assisted Steering System:
Yes
Go to Step 2.
Go to applicable diag.
flow.
Substitute a known-
good P/S control
module and recheck.
Go to Step 5.
Go to Step 7.
Substitute a known-
good P/S control
module and recheck.
Replace steering gear
case.
6C-23
No
Go to "EPS System
Check".
Go to Step 3.
Go to Step 4.
Go to Step 6.
Repair or replace
defective circuit.
Repair or replace
defective circuit.
Repair or replace
defective parts.