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Home >> Subaru >> 2006 >> Legacy GT spec.B >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 18 (Automatic Transmission (Diagnostics) 5AT) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P1760 Lateral Acceleration Sensor Performance Problem

DTC P1760 Lateral Acceleration Sensor Performance Problem

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

DTC DETECTING CONDITION: 

Lateral G sensor output voltage fault

WIRING DIAGRAM: 

Fig 1: Lateral Acceleration Sensor Performance - Wiring Diagram
G05019848
DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK VEHICLE CONDITION.  Is the vehicle a model with VDC, which has the VDC OFF switch on the instrument panel? Go to step 2.  Go to step 4. 
2 CHECK DTC OF TCM.  Is DTC of AT CAN communication detected? Perform the diagnosis according to DTC. Go to step 3. 
3 CHECK DTC OF ABS.  Is DTC of ABS detected? Perform the diagnosis according to DTC of ABS. Temporary poor contact occurs. Recheck for defective parts in harness and connectors.
4 CHECK OUTPUT OF LATERAL G SENSOR USING SUBARU SELECT MONITOR. 
  1. Select {Current Data Display & Save} in Subaru Select Monitor.
  2. Read the Subaru Select Monitor display.
 Is the reading indicated on monitor display 2.3 to 2.7 V? Go to step 5.  Go to step 10  .
5 CHECK OUTPUT OF LATERAL G SENSOR USING SUBARU SELECT MONITOR. 
  1. Turn the ignition switch to OFF.
  2. Remove the console box.
  3. Remove the lateral G sensor from vehicle. (Do not disconnect the connector.)
  4. Turn the ignition switch to ON.
  5. Select {Current Data Display & Save} in Subaru Select Monitor.
  6. Read the Subaru Select Monitor display.
 Is the value on the display 3.3 - 4.3 V with the lateral G sensor inclined 90° to right? Go to step 6.  Replace the lateral G sensor. < Ref. to LATERAL G SENSOR . >
6 CHECK OUTPUT OF LATERAL G SENSOR USING SUBARU SELECT MONITOR. 
Read the Subaru Select Monitor display.		 Is the value on the display 0.7 - 1.7 V with the lateral G sensor inclined 90° to left? Go to step 7.  Replace the lateral G sensor. < Ref. to LATERAL G SENSOR . >
7 CHECK POOR CONTACT OF CONNECTOR. 
Turn the ignition switch to OFF.		 Is there poor contact in connector between TCM and lateral G sensor? Repair the connector. Go to step 8. 
8 CHECK ABSCM&H/U. 
  1. Connect all connectors.
  2. Perform the Clear Memory Mode.
  3. Perform the Inspection Mode.
  4. Read the DTC.
 Is the same DTC displayed? Replace the TCM. < Ref. to TRANSMISSION CONTROL MODULE (TCM) . > Go to step 9. 
9 CHECK OTHER DTC DETECTION.  Is any other DTC displayed? Perform the diagnosis according to DTC. Temporary poor contact occurs.
10 CHECK OPEN CIRCUIT IN LATERAL G SENSOR OUTPUT HARNESS AND GROUND HARNESS. 
  1. Turn the ignition switch to OFF.
  2. Disconnect the connector from TCM.
  3. Measure the resistance between TCM connector terminals.

    Connector & terminal 

    (B54) No. 13 - (B55) No. 6: 

 Is the resistance between 5.0 and 6.0 kΩ? Go to step 11  . Repair the harness between lateral G sensor and TCM.
11 CHECK LATERAL G SENSOR. 
  1. Remove the console box.
  2. Remove the lateral G sensor from vehicle.
  3. Connect the connector to lateral G sensor.
  4. Connect the connector to ABSCM&H/U.
  5. Turn the ignition switch to ON.
  6. Measure the voltage between lateral G sensor connector terminals.

    Connector & terminal 

    (B359) No. 3 (+) - No. 2 (-): 

 Is the voltage 2.3 - 2.7 V when lateral G sensor is in horizontal position? Go to step 12  . Replace the lateral G sensor. < Ref. to LATERAL G SENSOR . >
12 CHECK LATERAL G SENSOR. 
Measure the voltage between lateral G sensor connector terminals.
Connector & terminal 
(B359) No. 3 (+) - No. 2 (-): 		 Is the voltage 3.3 - 4.3 V when lateral G sensor is inclined 90° to right? Go to step 13  . Replace the lateral G sensor. < Ref. to LATERAL G SENSOR . >
13 CHECK LATERAL G SENSOR. 
Measure the voltage between lateral G sensor connector terminals.
Connector & terminal 
(B359) No. 3 (+) - No. 2 (-): 		 Is the voltage 0.7 - 1.7 V when lateral G sensor is inclined 90° to left? Go to step 14.  Replace the lateral G sensor. < Ref. to LATERAL G SENSOR . >
14 CHECK ABSCM&H/U. 
  1. Turn the ignition switch to OFF.
  2. Connect all connectors.
  3. Perform the Clear Memory Mode.
  4. Perform the Inspection Mode.
  5. Read the DTC.
 Is the same DTC displayed? Replace the TCM. < Ref. to TRANSMISSION CONTROL MODULE (TCM) . > Go to step 15  .
15 CHECK OTHER DTC DETECTION.  Is any other DTC displayed? Perform the diagnosis according to DTC. Temporary poor contact occurs.
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