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Home >> Suzuki >> 2007 >> SX4 Base, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Anti-Theft Systems >> Keyless Start System >> Diagnostic Information and Procedures >> DTC No. 11: Communication Error with Steering Lock Unit >> DTC Troubleshooting
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DTC Troubleshooting

DTC TROUBLESHOOTING CHART

Step Action YES NO
1  Was "Keyless Start System Check" performed?  Go to Step 2. Go to KEYLESS START SYSTEM CHECK .
2  Steering lock unit circuit check 
  1. Disconnect connector from keyless start control module.
  2. Check for proper connection to "Steering lock unit power supply", "Steering lock unit signal" and "Steering lock unit ground" terminals of keyless start control module connector.
  3. If OK, check for open, short and high resistance in following circuits.
    • Steering lock unit power supply circuit
    • Steering lock unit signal circuit
    • Steering lock unit ground circuit

Is each circuit in good condition? 		 Go to Step 3. Repair circuit.
3  Steering lock unit power supply voltage check 
  1. Connect connector to keyless start control module.
  2. Measure voltage between "Steering lock unit power supply" 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.
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