82 - Implausible Data Received From Driver Blind Spot Sensor - Alive/Sequence Counter Incorrect/Not Updated

U1434-82 - Implausible Data Received From Driver Blind Spot Sensor - Alive/Sequence Counter Incorrect/Not Updated






For a complete wiring diagram, refer to.

• When Monitored: With the ignition on. Vehicle speed greater than 6 mph (9.6 km/h).

• Set Condition: Blind Spot Module (BSM) does not receive messages from the Left Rear Blind Spot Sensor.






Test Step 1 - CHECK FOR AN ACTIVE DIAGNOSTIC TROUBLE CODES (DTC)

• Turn the ignition on.

• With the scan tool, read BSM DTCs.

Does the scan tool display this DTC as active?

Yes

• Go to Test Step 2

No

• The condition that caused this code to set is not present at this time. Check for an intermittent condition by inspecting the related wiring harness for chafed, pierced, pinched, and partially broken wires. Also inspect the related connectors for broken, bent, pushed out, spread, corroded, or contaminated terminals.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 2 - CHECK THE VOLTAGE OF THE (D764) AND (D765) BLIND SPOT SENSOR DATA LINK CIRCUITS







• Turn the ignition off.

• Disconnect the Left Rear Blind Spot Sensor harness connector.

• Turn the ignition on.

• Using a volt meter, measure the voltage across the (D764) and (D765) circuits at the Left Rear Blind Spot Sensor harness connector.

Is the voltage above 0.7 volts?

Yes

• Go to Test Step 3

No

• Go to Test Step 5

Test Step 3 - (F921) FUSED IGNITION SWITCH OUTPUT (RUN) CIRCUIT OPEN







• Using a volt meter, measure the voltage of the (F921) Fused Ignition Switch Output (RUN) circuit.

Is voltage present?

Yes

• Go to Test Step 4

No

• Repair the (F921) Fused Ignition Switch Output (RUN) circuit for an open.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 4 - (Z901) GROUND CIRCUIT OPEN







• Turn the ignition off.

• Using an ohm meter, measure the resistance between ground and the (Z901) Ground circuit at the Left Rear Blind Spot Sensor harness connector.

Is the resistance below 100 Ohms?

Yes

• Replace the Left Rear Blind Spot Sensor. .

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Repair the (Z901) Ground circuit for an open.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

Test Step 5 - CHECK THE (D764) AND (D765) BLIND SPOT SENSOR DATA LINK CIRCUITS FOR AN OPEN







• Turn the ignition off.

• Disconnect the BSM harness connector.

• Using an ohm meter, measure the resistance of the (D764) and (D765) circuits.

Is the resistance above 5.0 Ohms?

Yes

• Repair the appropriate circuit for an open.

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior

No

• Replace the Blind Spot Module. .

• Perform the Body Verification Test. Refer to => Non-DTC Based Diagnostics. Body Interior