Jeep Grand Cherokee WK. Manual — part 177

C2112-SENSOR SUPPLY VOLTAGE CIRCUIT HIGH (CONTINUED)

6.

(B83) BRAKE PRESSURE SENSOR SUPPLY CIRCUIT SHORT TO GROUND

Measure the resistance between ground and the (B83) Brake Pressure
Sensor Supply circuit.

Is the resistance below 5.0 ohms?

Yes

>> Repair the (B83) Brake Pressure Sensor Supply circuit for

a short to ground.

Perform ABS VERIFICATION TEST - VER 1.

No

>> Go To 7

7.

(B83) BRAKE PRESSURE SENSOR SUPPLY CIRCUIT SHORT TO VOLTAGE

Turn the ignition on.

Measure the voltage of the (B83) Brake Pressure Sensor Supply cir-
cuit.

Is there any voltage present?

Yes

>> Repair the (B83) Brake Pressure Sensor Supply circuit for

a short to voltage.

Perform ABS VERIFICATION TEST - VER 1.

No

>> Replace the Anti-Lock Brake Module in accordance with

the Service Information.

Perform ABS VERIFICATION TEST - VER 1.

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BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS

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C2114-SENSOR CLUSTER SUPPLY VOLTAGE LOW

WK

BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS

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C2114-SENSOR CLUSTER SUPPLY VOLTAGE LOW (CONTINUED)

For the Anti-Lock Brake System circuit diagram. (Refer to 5 - BRAKES - SCHEMATICS AND DIAGRAMS)

For a complete wiring diagram Refer to Section 8W.

•

When Monitored:
With the ignition on.

•

Set Condition:
When the Anti-Lock Brake Module indicates the operating voltage is out of specified range.

Possible Causes

WIRING HARNESS, TERMINAL, CONNECTOR DAMAGE

(G4) SENSOR CLUSTER SUPPLY CIRCUIT SHORTED TO GROUND, VOLTAGE, OR OPEN

(G94) SENSOR CLUSTER GROUND CIRCUIT SHORTED TO VOLTAGE OR OPEN

SENSOR CLUSTER

ANTI-LOCK BRAKE MODULE

1.

CHECK FOR A DTC C2114-SENSOR CLUSTER SUPPLY VOLTAGE LOW

NOTE: The Sensor Cluster is the same as the Dynamics sensor.

NOTE: This DTC must be active for the results of this test to be valid.
Turn the ignition on.

With the scan tool, read and record DTC’s.

With the scan tool, read and record Freeze Fame information.

With the scan tool, erase DTC’s.

Cycle the ignition from off to on.

With the scan tool, read and record DTCs

Does the scan tool display: C2114-SENSOR CLUSTER SUPPLY VOLTAGE LOW?

Yes

>> Go To 2

No

>> Refer to the INTERMITTENT CONDITION diagnostic procedure.

Perform ABS VERIFICATION TEST - VER 1.

2.

CHECK THE WIRING HARNESS, TERMINALS, AND CONNECTORS

Check all related wiring for bruised, chafed, pierced, or partially broken wires.

Check all related connectors for broken, bent, pushed out, or corroded terminals.

Were any problems found?

Yes

>> Repair as necessary.

Perform ABS VERIFICATION TEST - VER 1.

No

>> Go To 3

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BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS

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C2114-SENSOR CLUSTER SUPPLY VOLTAGE LOW (CONTINUED)

3.

CHECK THE VOLTAGE ON THE (G4) SENSOR CLUSTER SUPPLY CIRCUIT

Turn the ignition off.

Disconnect the Sensor Cluster harness connector.

Turn the ignition on.

Measure the voltage of the (G4) Sensor Cluster Supply Circuit.

Is the voltage above 10 volts?

Yes

>> Go To 7

No

>> Go To 4

4.

(G4) SENSOR CLUSTER SUPPLY CIRCUIT SHORT TO GROUND

Turn the ignition off.

Disconnect the Anti-Lock Brake Module harness connector.

Measure the resistance between ground and the (G4) Sensor Cluster
Supply circuit.

Is the resistance below 5.0 ohms?

Yes

>> Repair the (G4) Sensor Cluster Supply circuit for a short to

ground.

Perform ABS VERIFICATION TEST - VER 1.

No

>> Go To 5

5.

(G4) SENSOR CLUSTER SUPPLY CIRCUIT SHORT TO VOLTAGE

Turn the ignition on.

Measure the voltage of the (G4) Sensor Cluster Supply circuit.

Is there any voltage present?

Yes

>> Repair the (G4) Sensor Cluster Supply circuit for a short to

voltage.

Perform ABS VERIFICATION TEST - VER 1.

No

>> Go To 6

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BRAKES - BRAKE CONTROLLER ELECTRICAL DIAGNOSTICS

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