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Home >> Suzuki >> 2006 >> Aerio Base, FWD, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 2 (Automatic Transmission) >> Diagnostic Information and Procedures >> DTC P1895 (No. 27): Torque Reduction Signal Circuit Malfunction >> DTC Troubleshooting

DTC Troubleshooting

WARNING: This page is about a different variant/trim than selected.
DTC TROUBLESHOOTING CHART

Step Action YES NO
1  Was "A/T System Check" performed?  Go to Step 2. Go to A/T SYSTEM CHECK .
2  Check torque reduction signal circuit for open 
  1. Turn ignition switch OFF.
  2. Disconnect TCM and ECM connectors from TCM and ECM.
  3. Check continuity between terminal "G07-18" of disconnected harness side TCM connector and terminal "G04-29" of disconnected harness side ECM connector.

Is continuity indicated? 		 Go to Step 3. "LT GRN/RED" circuit open.
3  Check torque reduction signal circuit for ground short 
  1. Check continuity between terminal "G07-18" of disconnected harness side TCM connector and ground.

Is continuity indicated? 		 "LT GRN/RED" circuit shorted ground Go to Step 4.
4  Check power supply from ECM 
  1. Connect ECM connectors to ECM.
  2. Turn ignition switch ON.
  3. Measure voltage between terminal "G04-17" of connected harness side ECM connector and ground.

Is it 4 - 6 V? 		 Intermittent trouble or faulty TCM or ECM.
Check for intermittent referring to INTERMITTENT AND POOR CONNECTION INSPECTION .
If OK, substitute a known-good TCM or ECM and recheck.		 Faulty ECM.
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