Suzuki Grand Vitara 2011 Manual page 1189

Troubleshooting
Step
1 1) Turn ignition switch to ON position.
Do other warning lights come ON?
2 1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch to ON position and check DTC.
Is there DTC U1073?
3 Is Circuit fuse for combination meter in good condition?
4 1) Check CAN communication circuit between combination
meter and ESP®, control module referring to "DTC
U1073: Control Module Communication Bus Off"
Is CAN communication circuit in good condition?
5 1) Remove combination meter with ignition switch turned
OFF.
2) Check for proper connection to "PPL/RED" and "BLK"
wire of combination meter connector.
3) If OK, turn ON ignition switch and measure voltage at
"PPL/RED" wire of combination meter connector and
vehicle body ground.
Is it 10 – 14 V?
6 1) Measure resistance between "BLK" wire of combination
meter connector and vehicle body ground.
Is resistance less than 2
Action
Ω
?
Electronic Stability Program:
Yes
Go to Step 2.
Go to "DTC U1073:
Control Module
Communication Bus
Off" for troubleshooting.
Go to Step 4.
Go to Step 5.
Go to Step 6.
Replace combination
meter.
4F-21
No
Go to Step 3.
Substitute a known-
good combination meter
and recheck. If ESP®
warning light remains
OFF, substitute a
known-good ESP®
hydraulic unit / control
module assembly and
recheck.
Replace fuse and check
for short circuit to
ground.
Repair or replace.
Repair power supply
circuit for combination
meter.
"BLK" circuit open or
high resistance.