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DTC Troubleshooting

C1034/C1039: SYMPTOM TROUBLESHOOTING REFERENCE CHART

Step Action YES NO
Was "Electronic Stability Program Check" performed?  Go to Step 2. Go to ELECTRONIC STABILITY PROGRAM CHECK .
DTC check for ESP® 
  1. Connect SUZUKI scan tool to DLC with ignition switch turned OFF.
  2. Turn ignition switch ON and check DTC for ESP®.

Are DTC U0073 and/or U0123 detected? 
Go to applicable DTC troubleshooting. Go to Step 3.
Check fuse 
Is circuit fuse for yaw rate/G sensor in good condition? 
Go to Step 4. Replace fuse and check for short circuit to ground.
Check yaw rate/G sensor power supply circuit 
  1. Turn ignition switch to OFF position.
  2. Disconnect yaw rate/G sensor connector.
  3. Check for proper connection to yaw rate/G sensor connector terminals at "L34-1" and "L34-4".
  4. If OK, then measure voltage between connector terminal "L34-1" and vehicle body ground with ignition switch turned ON.

Is it 10 - 14 V? 
Go to Step 5. "GRN/ORN" wire circuit open or high resistance.
Check yaw rate/G sensor ground circuit 
  1. Measure resistance between connector terminal "L34-4" and vehicle body ground with ignition switch turned OFF.

Is resistance less than 2 Ω? 
Substitute a known-good yaw rate/G sensor and recheck. If DTC C1034 and/or C1039 is still detected, substitute a known-good ESP® hydraulic unit/control module assembly and recheck. "BLK/ORN" wire circuit open or high resistance.