Suzuki Grand Vitara 2011 Manual page 1194

4F-26 Electronic Stability Program:
[B]: ECM connector (viewed from harness side) (petrol engine model)
[C]: ECM connector (viewed from harness side) (diesel engine model)
[D]: Petrol engine model
[E]: Diesel engine model
1. Battery
2. Main fuse box
DTC Detecting Condition and Trouble Area
DTC Detecting Condition
Vehicle behavior and stop light switch signal is disagreed
for specified time.
DTC Troubleshooting
Step
1 Was "Electronic Stability Program Check" performed?
2 DTC check for ESP®
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC for ESP®.
Is DTC U1073 and/or U1100 detected?
3 Check stop light switch
1) Check stop light (brake pedal) switch referring to "Brake
Light Switch Inspection in Section 9B".
Is it in good condition?
4 Check stop light switch circuit
1) Disconnect connector from stop light switch connector
with ignition switch turned OFF.
2) Check for proper connection to switch connector.
3) If connection are OK, measure voltage between "GRN"
wire terminal of stop light switch connector and vehicle
body ground.
Is it 10 – 14 V?
5 Check stop light switch circuit
1) Disconnect connectors from ECM.
2) Check for proper connection to "E23-20" wire of ECM
connector.
3) If connections are OK, check stop light switch circuit for
the following.
• Resistance of "GRN/WHT" wire terminal of stop light
switch between stop light switch connector and ECM
connector is less than 1Ω (continuity check)
• Resistance between "GRN/WHT" wire terminal of stop
light switch connector and vehicle body ground is
infinity (ground short check)
• Voltage of between "GRN/WHT" wire terminal of stop
switch connector and vehicle body ground is 0 V with
ignition switch tuned ON (power short check)
Is it in good condition?
Action
4. Stop light switch
5. Stop light
6. ECM
7. CAN driver
8. ESP® hydraulic unit control module assembly
Trouble Area
• Back up light switch circuit
• Back up light switch
• CAN communication circuit
• ECM
• ESP® control module
Yes
Go to Step 2.
Go to applicable DTC
diag. flow.
Go to Step 4.
Go to Step 5.
Substitute a known-
good ECM and recheck.
If DTC C1016 is still
detected, substitute a
known-good ESP®
hydraulic unit / control
module assembly and
recheck.
No
Go to "Electronic
Stability Program
Check".
Go to Step 3.
Replace stop light
switch.
Replace fuses and/or
repair "GRN" wire
circuit.
Repair or replace
defective wire.