Conditions For Setting DTC P1860
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DTC will set under the following conditions:
- 1st gear is commanded.
- Engine is running at more than 475 RPM for more than 7 seconds.
- DTCs P0751 or P0753 (1-2 shift solenoid) are not present.
- DTCs P0756 or P0758 (2-3 shift solenoid) are not present.
- System voltage is 10-17 volts.
- VCM commands solenoid off and voltage remains low (zero volts).
- VCM commands solenoid on and voltage remains high (battery voltage).
- All conditions are met for 5 seconds.