LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Suzuki >> 2007 >> SX4 Base, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 154 (Keyless Start System) >> Diagnostic Information And Procedures >> DTC No. 11: Communication Error With Steering Lock Unit >> Troubleshooting
April 5, 2026: LEMON Manuals is launched! Read the announcement.

DTC No. 11: Communication Error With Steering Lock Unit: 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.
TROUBLESHOOTING CHART

Step Action YES NO
Was "Keyless Start System Check" performed?  Go to Step 2. Go to KEYLESS START SYSTEM CHECK .
Steering lock unit circuit check 
  1. Disconnect connector from keyless start control module.
  2. Check for proper connection to "G44-20", "G44-29" and "G44-30" terminals of keyless start control module connector.
  3. If OK, check for open, short and high resistance in each circuit.
    • Between "G22-3" terminal of steering lock unit connector and "G44-20" terminal of keyless start control module connector
    • Between "G22-7" terminal of steering lock unit connector and "G44-29" terminal of keyless start control module connector
    • Between "G22-8" terminal of steering lock unit connector and vehicle body ground

Is each circuit in good condition? 
Go to Step 3. Repair circuit.
Steering lock unit power supply voltage check 
  1. Connect connector to keyless start control module.
  2. Measure voltage between "G22-3" terminal of steering lock unit connector and vehicle body ground.

Is voltage 4 - 6 V? 
Replace steering lock unit. Substitute a known-good keyless start control module and recheck.