LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2007 >> SX4 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 161 (Brakes - Esp) >> Diagnostic Information And Procedure >> DTC C1091/1092/1093: ECM/TCM/4WD Control Module Data In Can Line Failure >> DTC Troubleshooting
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC Troubleshooting

WARNING: This page is about a different car, the 2006 Suzuki Grand Vitara. However, it is still accessible from the selected car via links, so may be relevant.
DTC TROUBLESHOOTING CHART

Step Action YES NO
Was "Electronic Stability Program Check" performed?  Go to Step 2. Go to ELECTRONIC STABILITY PROGRAM CHECK .
DTC check other control module than ESP® 
  1. Check DTC for ECM, TCM and/or 4WD control module.

Is there any DTC(s)? 
Go to applicable DTC diagnosis flow for troubleshooting. Substitute a known-good ESP® hydraulic unit/control module assembly and check DTC.