C006A:16
Anti-Lock Control
Pinpoint Test G: DTCs C006A:01, 16, 17, 95; U0125:00 and U0125:88
Refer to Wiring Diagrams Set 42, Vehicle Dynamic Systems for schematic and connector information. Electrical Diagrams
Normal Operation
The voltage required for correct sensor cluster operation is between 7 and 17 volts. Both battery voltage and ground is supplied to the sensor cluster from the ABS module. The sensor cluster communicates with the ABS module over a dedicated Controller Area Network (CAN). A concern in any one of these circuits or an internal failure in the ABS module or sensor cluster will cause one or more of the DTCs listed below to set.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- ABS module
- Stability control sensor cluster
- Stability control sensor cluster calibration
PINPOINT TEST G : DTCs C006A:01, 16, 17, 95; U0125:00 AND U0125:88
NOTE: Carry out a thorough inspection and verification before proceeding with the pinpoint test. Refer to Inspection and Verification. Inspection and Verification
G1 CHECK FOR FAULT REPEATABILITY
- Ignition ON.
- Connect the scan tool.
- Using a scan tool, clear all ABS module DTCs.
- Test drive the vehicle at speeds greater then 20 km/h (12 mph).
- Enter the following diagnostic mode on the scan tool: Self Test- ABS Module.
Is DTC C0061:01, C0062:01, C0063:01, C0064:01, C006A:01, 16, 17, or 95 or any communication (U-code) DTC present in the ABS module?
Yes
If DTC C0061:01, C0062:01, C0063:01 or C0064:01 is present, GO to G2.
If DTC U3003:16 or U3003:17 is also present, GO to Pinpoint Test I. Pinpoint Test I: DTCs U3003:16, 17 and 62
If only DTC C006A:01, 16, 17, or 95 are present, GO to G3.
If DTC U0125:00 or U0125:88 is present, GO to G8.
For all other DTCs, REFER to the ABS Module DTC Chart. Antilock Brakes / Traction Control Systems
No
The fault is not present at this time. If the vehicle has recently been jump started with the ignition ON or had a dead battery, the DTC may have been triggered by the sudden change in supply voltage.
G2 REVIEW THE ABS MODULE DTCs
- Review the DTCs retrieved from the self-test.
Were any communication (U-code) DTCs retrieved?
Yes
If DTC U3003:16 or U3003:17 is also present, GO to Pinpoint Test I. Pinpoint Test I: DTCs U3003:16, 17 and 62
If DTC U0125:00 or U0125:88 is present, GO to G8.
For all other DTCs, REFER to the ABS Module DTC Chart to diagnose the communication (U-code) DTCs first. Antilock Brakes / Traction Control Systems
No
INSTALL a new sensor cluster. REFER to Stability Control Sensor Cluster . CLEAR the DTCs. REPEAT the self-test.
G3 MEASURE THE ABS MODULE OUTPUT TO THE SENSOR CLUSTER
- Ignition OFF.
- Disconnect: Stability Control Sensor Cluster C3073.
- Ignition ON.
- Measure the voltage between stability control sensor cluster C3073-3, circuit 7-CF67 (YE/RD), harness side and ground.
Is the voltage greater than 10 volts?
Yes
For DTC C006A:01, 16 or 17, GO to G6.
For all other DTCs, GO to G8.
No
GO to G4.
G4 CHECK THE SENSOR CLUSTER POWER SUPPLY FOR AN OPEN
- Ignition OFF.
- Disconnect: ABS Module C155.
- Measure the resistance between ABS module C155-22, circuit 7-CF67 (YE/RD), harness side, and stability control sensor cluster C3073-3, circuit 7-CF67 (YE/RD), harness side.
Is the resistance less than 5 ohms?
Yes
GO to G5.
No
REPAIR the circuit. CLEAR the DTCs. CARRY OUT the IVD Initialization sequence for all 4 stability sensors. FOLLOW the scan tool directions. REPEAT the self-test.
G5 CHECK THE SENSOR CLUSTER POWER SUPPLY FOR A SHORT TO GROUND
- Measure the resistance between ABS module C155-22, circuit 7-CF67 (YE/RD), harness side and ground.
Is the resistance greater than 10,000 ohms?
Yes
For DTC C006A:16, 17 and 95, GO to G6.
For all other DTCs, GO to G13.
No
REPAIR the circuit. CLEAR the DTCs. CARRY OUT the IVD Initialization sequence for all 4 stability sensors. FOLLOW the scan tool directions. REPEAT the self-test.
G6 CHECK THE SENSOR CLUSTER GROUND CIRCUIT FOR A SHORT TO VOLTAGE
- Disconnect: ABS Module C155 (if not previously disconnected).
- Ignition ON.
- Measure the voltage between ABS module C155-29, circuit 9-CF67 (BN/RD), harness side and ground.
Is any voltage present?
Yes
REPAIR the circuit. CLEAR the DTCs. CARRY OUT the IVD Initialization sequence for all 4 stability sensors. FOLLOW the scan tool directions. REPEAT the self-test.
No
GO to G7.
G7 CHECK THE SENSOR CLUSTER GROUND CIRCUIT FOR AN OPEN
- Ignition OFF.
- Measure the resistance between ABS module C155-29, circuit 9-CF67 (BN/RD), harness side and stability control sensor cluster C3073-5, circuit 9-CF67 (BN/RD), harness side.
Is the resistance less than 5 ohms?
Yes
If DTC C006A:95 or C006A:01 is present, GO to G8.
If DTC C006A:16 or 17 is present, GO to G13.
No
REPAIR the circuit. CLEAR the DTCs. CARRY OUT the IVD Initialization sequence for all 4 stability sensors. FOLLOW the scan tool directions. REPEAT the self-test.
G8 CHECK THE SENSOR CLUSTER DEDICATED CAN (Controller Area Network) CIRCUITS FOR AN OPEN
- Disconnect: ABS Module C155 (if not previously disconnected).
- Disconnect: Stability Control Sensor Cluster C3073 (if not previously disconnected).
- Measure the resistance between ABS module C155, harness side and stability control sensor cluster C3073, harness side, as indicated in the following chart:
ABS Module Circuit Stability Control Sensor Cluster C155-19 5-CF67 (BU/RD) C3073-1 C155-18 4-CF67 (GY/RD) C3073-2
Are the resistances less than 5 ohms?
Yes
GO to G9.
No
REPAIR the affected circuit(s). CLEAR the DTCs. CARRY OUT the IVD Initialization sequence for all 4 stability sensors. FOLLOW the scan tool directions. REPEAT the self-test.
G9 CHECK THE SENSOR CLUSTER DEDICATED CAN (Controller Area Network) CIRCUITS FOR A SHORT TO GROUND
- Measure the resistance between ABS module C155-18, circuit 4-CF67 (GY/RD), harness side and ground, and between C155-19, circuit 5-CF67 (BU/RD), harness side and ground.
Are the resistances greater than 10,000 ohms?
Yes
GO to G10.
No
REPAIR the affected circuit(s). CLEAR the DTCs. CARRY OUT the IVD Initialization sequence for all 4 stability sensors. FOLLOW the scan tool directions. REPEAT the self-test.
G10 CHECK THE SENSOR CLUSTER DEDICATED CAN (Controller Area Network) CIRCUITS FOR A SHORT TO VOLTAGE
- Ignition ON.
- Measure the voltage between ABS module C155-18, circuit 4-CF67 (GY/RD), harness side and ground, and between C155-19, circuit 5-CF67 (BU/RD), harness side and ground.
Is any voltage present?
Yes
REPAIR the affected circuit(s). CLEAR the DTCs. CARRY OUT the IVD Initialization sequence for all 4 stability sensors. FOLLOW the scan tool directions. REPEAT the self-test.
No
GO to G11.
G11 CHECK THE SENSOR CLUSTER DEDICATED CAN (Controller Area Network) CIRCUITS FOR A SHORT TOGETHER
- Measure the resistance between ABS module C155-18, circuit 4-CF67 (GY/RD), harness side, and C155-19, circuit 5-CF67 (BU/RD), harness side.
Is the resistance greater than 10,000 ohms?
Yes
GO to G12.
No
REPAIR the affected circuit(s). CLEAR the DTCs. CARRY OUT the IVD Initialization sequence for all 4 stability sensors. FOLLOW the scan tool directions. REPEAT the self-test.
G12 CHECK THE SENSOR CLUSTER INSTALLATION
- NOTE: The stability control sensor cluster is correctly installed when the electrical connector points toward the RH side of the vehicle. Refer to the Stability Control Sensor Cluster exploded view.
Verify that the sensor cluster is correctly installed, that the fasteners are tightened to specifications, and that the sensor cluster is not damaged.
Is the sensor cluster correctly installed, with fasteners tightened correctly, and is the sensor cluster free of any damage?
Yes
If DTC C006A:95 is present, INSTALL a new sensor cluster. REFER to Stability Control Sensor Cluster . CLEAR the DTCs. REPEAT the self-test.
If DTC C006A:01, U0125:00 or U0125:88 is present, GO to G13.
No
CORRECT the sensor cluster installation. CLEAR the DTCs and REPEAT the self-test. If DTC C006A:01 or C006A:95 returns, INSTALL a new sensor cluster. REFER to Stability Control Sensor Cluster . CLEAR the DTCs. REPEAT the self-test. If DTC C006A:01 returns, GO to G13.
G13 CHECK FOR CORRECT ABS MODULE OPERATION
- Check ABS module C155 and stability control sensor cluster C3073 for:
- corrosion.
- pushed-out pins.
- spread terminals.
- Connect: ABS Module C155.
- Connect: Stability Control Sensor Cluster C3073.
- Make sure the connectors seat correctly, then operate the system and verify the concern is still present.
Is the concern still present?
Yes
INSTALL a new Hydraulic Control Unit (HCU). REFER to Hydraulic Control Unit (HCU) . TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CLEAR the DTCs. REPEAT the self-test.