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MANUAL TRANSMISSION - Troubleshooting <ACD> 22A-23 Code No.56 Lateral G sensor system Probable cause Code No.56 is output when the output signal of the lateral G sensor is below 0.5 V or above 4.5 V. D Harness or connector fault D Lateral G sensor fault D ABS-ECU fault <Vehicles with ACD and AYC> D 4WD-ECU fault OK OK (1) NG NG Check the following connectors: D-33, C-213, C-210 NG→Repair MUT-II Data List No.15 Lateral G sensor voltage OK: Refer to P.22A-35 (Data List Reference Table). OK→Intermittent malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions) Check the harness between the lateral G sensor and ignition switch. Check for the open circuit, ground and damage of the power line. NG→Repair Measure at lateral G sensor connector D-33. Disconnect the connector and measure at the harness side. D Ignition switch: ON (1) Voltage between terminal 1 and earth. OK: System voltage (2) Resistance between terminal 3 and earth. OK: 2 Ω or less (2) NG OK Check the following connectors: <Vehicles with ACD and AYC> D-33, C-128, B-123 <L.H. drive vehicles with ACD> D-33, C-128, C-44 <R.H. drive vehicles with ACD> D-33, C-44 NG→Repair OK Check the harness between the lateral G sensor and ABS-ECU. <Vehicles with ACD and AYC> Check for open circuit and damage of the earth line. Check the harness between the lateral G sensor and 4WD-ECU.<Vehicles with ACD> Check for open circuit and damage of the earth line. NG→Repair MUT-II Data List No.15 Lateral G sensor voltage OK: Refer to P.22A-35. (Data List Reference Table) NG→Refer to GROUP 35B - Troubleshooting <Vehicles with ACD and AYC>, or replace the 4WD-ECU <Vehicles with ACD>. OK→Intermittent malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions) NG D Remove the lateral G sensor. D Connect the special tool between the connector D-33 at the harness of the lateral G sensor connector and the lateral G sensor. D Ignition switch: ON D Voltage between terminal 2 and body earth [when the lateral G sensor is placed on a horizontal ground] OK: 2.4 - 2.6 V D Voltage between terminal 2 and body earth [when the lateral G sensor is placed with the labeled side facing the side] OK: 3.3 - 3.7 V Label D-33 Harness side connector Label MB991348 Replace the lateral G sensor. OK OK Check the following connectors: <Vehicles with ACD and AYC> D-33, C-44, C-128, B-123 <L.H. drive vehicles with ACD> D-33, C-128, C-44 <R.H. drive vehicles with ACD> D-33, C-44 NG→Repair OK MUT-II Data List No.15 Lateral G sensor voltage OK: Refer to P.22A-35. (Data List Reference Table) NG→Refer to GROUP 35B - Troubleshooting <Vehicles with ACD and AYC>, or replace the 4WD-ECU. OK→Intermittent malfunction (Refer to GROUP 00 - Points to Note for Intermittent Malfunctions) Check the harness between the lateral G sensor and 4WD-ECU. Check for open circuit, ground and damage of the power line. Check the harness between the lateral G sensor and ABS-ECU. <Vehicles with ACD and AYC> Check for ground and damage of the power line. NG→Repair |