Edge AWD V6-3.5L (2009)
Pinpoint Test G: The Steering Angle Sensor Module (SASM) Does Not Respond To The Scan Tool
Refer to Wiring Diagram Set 14, Module Communications Network for schematic and connector information. See: Diagrams/Electrical
Diagrams/Diagrams By Number
Refer to Wiring Diagram Set 42, Vehicle Dynamic Systems for schematic and connector information. See: Diagrams/Electrical Diagrams/Diagrams By
Number
Normal Operation
The Steering Angle Sensor Module (SASM) communicates with the scan tool through the High Speed Controller Area Network (HS-CAN). Circuits
VDB04 (WH/BU) (HS-CAN +) and VDB05 (WH) (HS-CAN -) provide the network connection to the SASM. Voltage to the SASM is supplied by
circuit CBP34 (VT/BN). Ground is supplied by circuit GD115 (BK/GY).
This pinpoint test is intended to diagnose the following:
-
Fuse
-
Wiring, terminals or connectors
-
SASM
PINPOINT TEST G: THE STEERING ANGLE SENSOR MODULE (SASM) DOES NOT RESPOND TO THE SCAN TOOL
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the
connector.
NOTE: Failure to disconnect the battery when instructed will result in false resistance readings. Refer to Battery.
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G1 CHECK THE SASM VOLTAGE SUPPLY CIRCUIT FOR AN OPEN
-
Ignition OFF.
-
Disconnect: SASM C222.
-
Ignition ON.
-
Measure the voltage between the SASM C222-1, circuit CBP34 (VT/BN), harness side and ground.
-
Is the voltage greater than 10 volts?
Yes
GO to G2.
No
VERIFY the Smart Junction Box (SJB) fuse 34 (5A) is OK. If OK, REPAIR the circuit. If not OK, REFER to the Wiring Diagrams to identify the
possible causes of the circuit short. CLEAR the
DTCs. REPEAT the network test with the scan tool.
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G2 CHECK THE SASM GROUND CIRCUIT FOR AN OPEN
-
Ignition OFF.
-
Disconnect: Negative Battery Cable.
-
Measure the resistance between the SASM C222-4, circuit GD115 (BK/GY), harness side and ground.