C0675

DTC C0670 or C0675

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Diagnostic Procedure Instructions) provides an overview of each diagnostic category.

DTC Descriptors
DTC C0670 02
- Left Front Acceleration or Position Sensor Circuit Short to Ground

DTC C0670 05
- Left Front Acceleration or Position Sensor Circuit High Voltage/Open

DTC C0670 0A
- Left Front Acceleration or Position Sensor Circuit Too Slow Transitions

DTC C0675 02
- Right Front Acceleration or Position Sensor Circuit Short to Ground

DTC C0675 05
- Right Front Acceleration or Position Sensor Circuit High Voltage/Open

DTC C0675 0A
- Right Front Acceleration or Position Sensor Circuit Too Slow Transitions

Diagnostic Fault Information





Circuit/System Description

The suspension control module supplies a 5 V reference voltage and a low reference to each vertical wheel acceleration sensor. The vertical wheel acceleration sensors supply a signal of 0.5-4.5 V to the suspension control module.

Conditions for Running the DTC

System voltage is between 9-16 V.

Conditions for Setting the DTC

C0670 02 and C0675 02

The signal voltage is less than 0.5 V for 1.5 s.

C0670 05 and C0675 05

The signal voltage is greater than 4.5 V for 1.5 s.

C0670 0A and C0675 0A
* The number of signal changes is less than specified value for 2.5 s.
* Vehicle speed is greater than 30 km/h (19 mph).

Action Taken When the DTC Sets

* The electronic suspension control is disabled for the duration of the ignition cycle.
* The driver information center displays the SERVICE SUSPENSION SYSTEM message.

Conditions for Clearing the DTC

* A present DTC will clear on the next consecutive malfunction-free ignition cycle.
* A history DTC will clear after 41 consecutive malfunction-free ignition cycles.

Reference Information
Schematic Reference

Electronic Suspension Control Schematics (Electrical Diagrams)
Connector End View Reference

Component Connector End Views (Connector End Views By Name)
Description and Operation

Electronic Suspension Control Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Circuit Testing)
* Connector Repairs (Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (Wiring Repairs)

Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information

Circuit/System Verification

Ignition ON, observe the scan tool Vertical Wheel Acceleration parameters. The parameters should be 0 m/s(2) when the vehicle is parked on a level surface.

Circuit/System Testing

1. Ignition ON, verify that DTC C0870 is not present.

• If the DTC is present, refer to DTC C0870 (C0870) to diagnose that DTC prior to this diagnostic.

2. Ignition OFF, disconnect the harness connector at the appropriate B161 vertical suspension acceleration sensor.
3. Ignition OFF, open/close doors, and wait 60 seconds. Test for less than 5 ohm between the low reference circuit terminal C and ground.

• If greater than the specified value, test the low reference circuit for short to voltage or an open/high resistance. If the circuit tests normal, replace the K19 Suspension Control Module.

4. Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal A and ground.

• If less than the specified range, test the 5 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K19 suspension control module.
• If greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K19 suspension control module.

5. Test for 4.8-5.2 V between the signal circuit terminal B and ground.

• If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the K19 suspension control module.
• If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K19 suspension control module.

6. If all circuits test normal, replace the B161 vertical suspension acceleration sensor. Verify the DTC does not reset. If the DTC resets, replace the K19 suspension control module

Repair Instructions

Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.

* Electronic Suspension Front Vertical Accelerometer Replacement - Lower (Electronic Suspension Front Vertical Accelerometer Replacement - Lower)
* Control Module References (Programming and Relearning) for suspension control module replacement, setup and programming