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Home >> Suzuki >> 2012 >> SX4 LE, Automatic CVT Trans >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Continuously Variable Transaxle (CVT) >> Diagnostic Information and Procedures >> DTC P1818: Stepper Motor Performance >> DTC Troubleshooting

DTC Troubleshooting

DTC P1818 TROUBLESHOOTING CHART

Step Action YES NO
1  Was "CVT System Check" performed?  Go to Step 2. Go to CVT SYSTEM CHECK .
2  DTC check 
  1. Check DTC related to CAN communication.

Is there any CAN-DTC(s) detected? 		 Go to troubleshooting for applicable DTC. Go to Step 3.
3  Primary pulley speed sensor and its circuit check 
  1. Check primary pulley speed sensor and its circuit according to Step 3 through 4 of DTC P0717 .

Are they in good condition? 		 Go to Step 4. Repair or replace defective parts.
4  Secondary pulley speed sensor and its circuit check 
  1. Check secondary pulley speed sensor and its circuit according to Step 3 through 4 of DTC P0722 .

Are they in good condition? 		 Go to Step 5. Repair or replace defective parts.
5  Stepper motor check 
  1. Check stepper motor and its circuit according to Step 2 through 3 of DTC P1816 .

Are they in good condition? 		 Substitute a known-good TCM and recheck. Repair or replace defective wire harness. If MIL still remains on, replace stepper motor (valve body assembly).
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