Suzuki GRAND VITARA Owner's Manual page 227

[A]: Keyless start control module connector (if equipped) (viewed from harness side)
[B]: ECM connector (viewed from harness side)
[C]: TCM connector (for A/T model) (viewed from harness side)
[D]: DLC (viewed from terminal side)
[E]: ABS hydraulic unit / control module connector (viewed from terminal side)
[F]: Combination meter connector (viewed from harness side)
[G]: 4WD control module connector (viewed from harness side)
[H]: BCM connector (viewed from harness side)
1. ECM
DTC Detecting Condition and Trouble Area
DTC detecting condition
Transmission error that is inconsistent between
transmission data and transmission monitor (CAN bus
monitor) data is detected more than 7 times continuously.
(1 driving detection logic)
DTC Confirmation Procedure
1) Connect scan tool to DLC with ignition switch turned OFF.
2) Turn ON ignition switch and clear DTC by using scan tool.
3) Start engine and run it for 1 min. or more.
4) Check DTC.
DTC Troubleshooting
NOTE
Before this trouble shooting is performed, read the precautions for DTC troubleshooting referring to
"Precautions For DTC Troubleshooting: ".
Step
1 Was "Engine and Emission Control System Check"
performed?
2 DTC check
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Check ECM, TCM (for A/T model), ABS hydraulic unit /
control module assembly, 4WD control module (for J20
engine), keyless start control module (if equipped) and
BCM for DTC.
Is there any DTC(s) other than CAN communication DTC(s)
at each control module (other than DTC P1618, P1674,
P1676, P1678, P1685 in ECM, DTC P1774, P1777, P1778
in TCM (for A/T model), DTC U1073, U1100, U1101, U1121
in BCM, ABS hydraulic unit / control module assembly and
4WD control module (for J20 engine) and DTC No.31 / 33 in
keyless start control module (if equipped))?
Action
Engine General Information and Diagnosis:
2. ABS hydraulic unit / control module assembly
3. Combination meter
4. BCM
5. 4WD control module (for J20 engine)
6. TCM (for A/T model)
7. Keyless start control module (if equipped)
8. DLC
9. CAN circuit junction connector
Trouble area
• ECM
• BCM
• TCM (for A/T model)
• Keyless start control module (if equipped)
• ABS hydraulic unit / control module assembly
• 4WD control module (for J20 engine)
• Combination meter
• CAN communication line circuit
Yes
Go to Step 2.
Go to applicable DTC
diag. flow.
1A-172
No
Go to "Engine and
Emission Control
System Check: ".
Go to Step 3.