DTC 112

EAB. Code 1-1-2

1-1-2 Short-circuit to battery voltage in solenoid S1 circuit

DTC information


Conditions for DTC






Solenoid S1 works together with solenoid S2 and controls transmission gear-shifting. Solenoid S1 operates when battery voltage is applied from the TCM and is activated in 2nd and 3rd gears. If the TCM registers a short circuit to battery voltage on the solenoid S1 circuit when the solenoid should not be activated DTC 1-1-2 is set. Solenoid S1 is then probably permanently activated.

Substitution value

The emergency 'Limp-home" program has been initiated and the transmission probably functions in 3rd gear.

Defect cause

- Short circuit to battery voltage in the signal wiring.

Fault symptom

- Poor performance due to the transmission presumably operating in 3rd gear.
- Fault-tracing starts with EAB1.




EAB1

Checking solenoid S1






- Ignition ON
- Set gearshift selector to position P

Check solenoid S1 using Diagnostic Test Mode 4. Use a stethoscope to hear if the solenoid is operating.

If solenoid is operating:
- Intermittent fault. Fault-tracing as per EAB2.

If the solenoid is not operating:
^ Check the wiring between solenoid S1 and TCM #27 for short-circuits to supply as per FA4. F. Other Electrical Test and Communication Problem Solving



EAB2

Intermittent Fault.

Checking wiring and connections






- Check the wiring between solenoid S1 in the transmission and TCM #A27 for intermittent short circuit to supply as per FA4. F. Other Electrical Test and Communication Problem Solving