DTC Troubleshooting
DTC TROUBLESHOOTING CHART
| Step |
Action |
YES |
NO |
| 1 |
Was "CVT System Check" performed? |
Go to Step 2. |
Go to CVT SYSTEM CHECK . |
| 2 |
Stepper motor drive circuit check
- Confirm that ignition mode of keyless push start system is "OFF".
- Disconnect "C142", "E19" and "E20" connectors.
- Check for proper terminal connection to "C142", "E19" and "E20" connectors.
- If connections are OK, check the following points.
- Resistance of "A1", "A2", "A3" and "A4" circuits: less than 1 Ω
- Resistance of "A1", "A2", "A3" and "A4" circuits between "C142" connector and ground: infinity
- Resistance between each of "A1", "A2", "A3" and "A4" circuit terminals and each terminal at "C142" connector: infinity
- Voltage of "A1", "A2", "A3" and "A4" circuits: 0 - 1 V (with ignition mode of keyless push start system in "ON")
Are they in good condition? |
Go to Step 3. |
Repair or replace defective wire harness. |
| 3 |
Stepper motor check
- Push engine switch to change ignition mode to "OFF".
- Disconnect "C142" connector (1).
- Check for proper terminal connection to "C142" connector.
- Check resistance of stepper motor circuit as follows.
Stepper motor resistance:
Between terminals "1" and "15" of solenoid connector: Approx. 30 Ω at 20 °C (68 °F)
Between terminals "13" and "14" of solenoid connector: Approx. 30 Ω at 20 °C (68 °F)
Between terminal "1" of solenoid connector and transaxle: Approx. 15 Ω at 20 °C (68 °F)
Between terminal "15" of solenoid connector and transaxle: Approx. 15 Ω at 20 °C (68 °F)
Between terminal "13" of solenoid connector and transaxle: Approx. 15 Ω at 20 °C (68 °F)
Between terminal "14" of solenoid connector and transaxle: Approx. 15 Ω at 20 °C (68 °F)
 Courtesy of SUZUKI OF AMERICA CORP.
Are they in good condition? |
Substitute a known-good TCM and recheck DTC, see TRANSMISSION CONTROL MODULE (TCM) REMOVAL AND INSTALLATION . |
Replace stepper motor (valve body assembly), see VALVE BODY ASSEMBLY REMOVAL AND INSTALLATION
. |