Suzuki GRAND VITARA JB416 Service Manual page 52

1A-34 Engine General Information and Diagnosis:
Step
9 DTC check in ECM
1) Disconnect connector from keyless start control module
(if equipped) with ignition switch turned OFF.
2) Check ECM for DTC.
Is there DTC P1674?
10 DTC check in ECM
1) Disconnect connector from combination meter with
ignition switch turned OFF.
2) Check ECM for DTC.
Is there DTC P1674?
11 DTC check in ECM
1) Disconnect connector from 4WD control module (if
equipped) with ignition switch turned OFF.
2) Check ECM for DTC.
Is there DTC P1674?
12 DTC check
1) Disconnect connector from steering angle sensor
(vehicle equipped with ESP® control module) with
ignition switch turned OFF.
2) Check ECM for DTC.
Is there DTC P1674?
13 ABS or EPS® control module check
1) Measure resistance at following connector terminals.
• Between "WHT/BLU" terminal and "WHT" terminal of
ABS or ESP® control module connector.
• Between "WHT/RED" terminal and "RED" terminal of
ABS or ESP® control module connector.
Is measured resistance below 1
Action
Ω
?
Yes
Go to Step 10.
Go to Step 11.
Go to Step 12.
Go to Step 13.
Go to Step 14.
No
CAN communication
circuit wire between
keyless start control
module and CAN circuit
junction connector is
open or high resistance.
If wires are OK,
substitute a known-
good keyless start
control module and
recheck.
CAN communication
circuit wire between
combination meter and
CAN circuit junction
connector is open or
high resistance. If wires
are OK, substitute a
known-good
combination meter or
keyless start control
module (if equipped)
and recheck.
CAN communication
circuit wire between
4WD control module
and CAN circuit junction
connector is open or
high resistance. If wires
are OK, substitute a
known-good 4WD
control module and
recheck.
CAN communication
circuit wire between
steering angle sensor
and CAN circuit junction
connector is open or
high resistance. If wires
are OK, check steering
angle sensor power and
ground circuits. If
circuits are OK,
substitute a known-
good steering angle
sensor and recheck.
Substitute a known-
good ABS or ESP®
control module and
recheck.