Suzuki 2006 SX4 Service Manual page 172

1A-128 Engine General Information and Diagnosis:
Step
6 Terminating resistance check in ECM and combination
meter
1) Turn ignition switch to OFF position and then disconnect
negative (–) cable at battery.
2) Measure resistance between CAN High terminal (2) and
CAN Low terminal (3) on DLC (1).
1
If resistance 57 – 67
7 Substitute ECM and recheck
1) Substitute a known-good ECM and recheck.
Is it in good condition?
8 Terminating resistance check in ECM
1) Make sure that ignition switch is OFF position and
battery negative (–) cable is disconnected.
2) Disconnect combination meter connector.
3) Measure resistance between CAN high terminal and
CAN low terminal on DLC as the same manner as Step
6.
Is resistance 114 – 134
9 Internal circuit check in BCM
1) Make sure that ignition switch is OFF position and
battery negative (–) cable is disconnected.
2) Disconnect ABS control module connector.
3) Measure resistance between the followings
• Between CAN high terminal on DLC and "E08-2"
terminal on ABS control module connector
• Between CAN low terminal on DLC and "E08-13"
terminal on ABS control module connector
Is each resistance 0 – 1
10 Internal circuit check in ABS control module
1) Make sure that ignition switch is OFF position and
battery negative (–) cable is disconnected.
2) Connect ABS control module connector and disconnect
ECM connector.
3) Measure resistance between the followings
• Between CAN High terminal on DLC and "E01-4"
terminal on ECM connector
• Between CAN Low terminal on DLC and "E01-19"
terminal on ECM connector
If each resistance 0 – 1
11 Substitute BCM and recheck
1) Substitute a known-good BCM and recheck.
Is it in good condition?
Action
3
16 15 14 13 12 11 10 9
8 7 6 5 4 3 2 1
2
Ω
?
Ω
?
Ω
?
Ω
?
Yes
Go to Step 7.
I7RW01110098-01
End.
Substitute a known-
good combination
meter.
Go to Step 10.
Substitute a known-
good ECM and recheck.
If NG, go to step 11.
End.
No
Go to Step 8.
Substitute a known-
good combination meter
and recheck. If NG, go
to Step 11.
Go to Step 9.
Substitute a known-
good BCM.
Substitute a known-
good ABS control
module.
Substitute a known-
good ABS control
module.