Suzuki 2006 SX4, Service Manual

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3B-12 Differential:
DTC Table
S6RW0C3204007
NOTE
“O” in transfer position indicator column of the above table means indicator lights up when DTC is
detected.
Fail-Safe Table
S6RW0C3204008
This function is provided by the safe mechanism that assures safe driveability even when the coupling assembly,
switch, sensor or its circuit fails. The following table shows the fail safe function for each fail condition of sensor,
coupling assembly, switch, 4WD control module or its circuit.
DTC No. Detecting item
Detecting condition
(DTC will set when detecting)
4WD
position
Indicator
) C1240
4WD control module power
supply circuit malfunction Battery voltage is lower than lower limit voltage for
4WD control module diagnosis.
{
) C1243
Internal circuit malfunction of
4WD control module Internal power supply malfunction of 4WD control
module
{
) C1250
Coupling air temperature sensor
open
Sensor output voltage too high {
) C1251
Coupling air temperature sensor
short
Sensor output voltage too low {
) C1252 Coupling assembly open
2WD/4WD switch is changed of 4WD lock position,
and then vehicle is not changed for more than 5
seconds.
{
) C1253 Coupling assembly short
2WD/4WD switch is changed of 4WD lock position,
and then vehicle is not changed for more than 5
seconds.
{
) C1254 2WD/4WD switch malfunction
Different switch combination from specification is
detected more than 5 seconds.
{
) U0073
Control module communication
bus off Transmitting and receiving error of 4WD control
module for specified time continuously
{
) U0100 Lost communication with ECM
Receiving error of 4WD control module from ECM
for specified time continuously
{
) U0121
Lost communication with ABS /
ESP
®
control module
Receiving error of 4WD control module from ABS /
ESP
®
control module for specified time
continuously
{
) U0155
Lost communication with
instrument panel cluster control
module
Receiving error of 4WD control module from
combination meter for specified time continuously
{
DTC No. Trouble Area Fail-Safe Operation
) C1240
4WD control module power supply circuit
malfunction 4WD control module controls the current and
fixed the vehicle to 2WD mode.
) C1243 Internal circuit malfunction of 4WD control module
) C1250 Coupling air temperature sensor open
) C1251 Coupling air temperature sensor short
) C1252 Coupling assembly open
) C1253 Coupling assembly short
) C1254 2WD/4WD switch malfunction
) U0073 Control module communication bus off
) U0100 Lost communication with ECM
) U0121
Lost communication with ABS / ESP
®
control
module
) U0155
Lost communication with instrument panel cluster
control module