Suzuki Grand Vitara 2011 Manual page 253

Step
7 CAN communication circuit check
1) Disconnect connectors from TCM and ECM with ignition
switch turned OFF.
2) Check that CAN communication circuit is as follows.
• Circuit resistance of CAN communication circuit is
less than 1 Ω between "WHT/RED" terminal of ECM
connector and "RED" terminal of TCM connector.
• Circuit resistance of CAN communication circuit is
less than 1 Ω between "WHT/BLU" terminal of ECM
connector and "WHT" terminal of TCM connector.
Is it in good condition?
8 ABS or ESP® 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
9 DTC check in ECM
1) Connect connectors to ECM and TCM with ignition
switch turned OFF.
2) Disconnect connectors from BCM with ignition switch
turned OFF.
3) Check ECM for DTC(s).
Is there DTC P1676?
10 DTC check
1) Disconnect connector from keyless start control module
(if equipped) with ignition switch turned OFF.
2) Check ECM for DTC.
Is there DTC P1676?
11 DTC check
1) Disconnect connector from combination meter with
ignition switch turned OFF.
2) Check ECM for DTC.
Is there DTC P1676?
Engine General Information and Diagnosis: For Petrol Engine Model 1A-184
Action
Ω
?
Yes
Go to Step 9.
CAN communication
circuit wire between
TCM and ECM
connector is open or
high resistance.
Go to Step 10.
Go to Step 11.
Go to Step 12.
No
Go to Step 8.
Substitute a known-
good ABS or ESP®
control module and
recheck.
CAN communication
circuit wire between
BCM and CAN circuit
junction connector is
open or high resistance.
If wires are OK, check
BCM power and ground
circuit. If circuits are OK,
substitute a known-
good BCM and recheck.
CAN communication
circuit wire between
keyless start control
module and CAN circuit
junction connector is
open or high resistance.
If wires are OK, check
keyless start control
module power and
ground circuits. If
circuits are OK,
substitute a known-
good keyless start
control module and
recheck.
CAN communication
circuit wire between
combination meter and
CAN circuit junction
connectors is open or
high resistance. If wires
are OK, check
combination meter
power and ground
circuits. If circuits are
OK, substitute a known-
good combination meter
and recheck.