DTC C0670 or C0675
| DTC C0670 or C0675 |
| Diagnostic Instructions |
| • |
Perform the
Diagnostic System Check - Vehicle
prior to using this diagnostic procedure.
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| • |
Review
Strategy Based Diagnosis
for an overview of the diagnostic approach.
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| • |
Diagnostic Procedure Instructions
provides an overview of each diagnostic category.
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| 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 | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
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Left Front Wheel Acceleration Sensor 5V Reference
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C0870 03
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C0670 05
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C0870 07
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-
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Right Front Wheel Acceleration Sensor 5V Reference
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C0870 03
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C0675 05
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C0870 07
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-
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Left Front Wheel Acceleration Sensor Signal
|
C0670 02
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C0670 05
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C0670 05, C0870 07
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C0670 0A
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Right Front Wheel Acceleration Sensor Signal
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C0675 02
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C0675 05
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C0675 05, C0870 07
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C0675 0A
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Left Front Wheel Acceleration Sensor Low Reference
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-
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C0670 05
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-
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-
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Right Front Wheel Acceleration Sensor Low Reference
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-
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C0675 05
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-
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-
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| 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.
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| • |
Vehicle speed is greater than 30 km/h (19 mph).
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| Action Taken When the DTC Sets |
| • |
The electronic suspension control is disabled for the duration of the ignition cycle.
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| • |
The driver information center displays the SERVICE SUSPENSION SYSTEM message.
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| Conditions for Clearing the DTC |
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A present DTC will clear on the next consecutive malfunction-free ignition cycle.
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A history DTC will clear after 41 consecutive malfunction-free ignition cycles.
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| Reference Information |
Schematic Reference
Electronic Suspension Control Schematics
Connector End View Reference
Component Connector End Views
Description and Operation
Electronic Suspension Control Description and Operation
Electrical Information Reference
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Circuit Testing
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Connector Repairs
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Testing for Intermittent Conditions and Poor Connections
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Wiring Repairs
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Scan Tool Reference
Control Module References for scan tool information
| Circuit/System Verification |
Ignition ON, observe the scan tool Vertical Wheel Acceleration parameters. The readings 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.
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| 2. |
If the DTC is present, refer to
DTC C0870
to diagnose that DTC prior to this diagnostic.
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| 3. |
Ignition OFF, disconnect the harness connector at the appropriate vertical wheel acceleration sensor.
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| 4. |
Test for less than 5 Ω between the low reference circuit terminal 3 and ground.
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| 5. |
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.
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| 6. |
Ignition ON, test for 4.8-5.2 V between the 5 V reference circuit terminal 1 and ground.
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| 7. |
If less than the specified value, 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.
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| 8. |
If greater than the specified value, test the 5 V reference circuit for a short to voltage. If the circuit tests normal, replace the K19 Suspension Control Module.
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| 9. |
Test for 4.8-5.2 V between the signal circuit terminal 2 and ground.
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| 10. |
If less than the specified value, 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.
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| 11. |
If greater than the specified value, test the signal circuit for a short to voltage. If the circuit tests normal, replace the K19 Suspension Control Module.
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| 12. |
If all circuits test normal, replace the vertical wheel acceleration sensor and verify the DTC does not reset. If the DTC resets, replace the K19 Suspension Control Module.
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| Repair Instructions |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
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Electronic Suspension Front Vertical Accelerometer Replacement - Lower
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Control Module References
for suspension control module replacement, setup, and programming
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