Pinpoint Test E: C05E0:1C, C05E0:86
- Refer to FOUR WHEEL DRIVE SYSTEMS
for schematic and connector information.
Normal Operation and Fault Conditions
The transfer case shift actuator contains 2 hall effect position sensors. The sensors share power and ground circuits. Power is provided by the AWD module and is 5v.
DTC Fault Trigger Conditions
DTC Description Fault Trigger Condition AWD C05E0:1C 4WD/AWD Clutch "A" Position Sensor Circuit: Circuit Voltage Out Of Range This DTC sets when the AWD module Clutch "A" Position Sensor Circuit detects transfer case unit control circuit driver circuit voltage out of range. AWD C05E0:86 4WD/AWD Clutch "A" Position Sensor Circuit: Signal Invalid This DTC sets if the AWD module Clutch "A" Position Sensor Circuit detects signal invalid. Possible Sources
- Wiring, terminals or connectors
- Transfer case shift actuator
- AWD module
- E1 CHECK FOR TRANSFER CASE ACTUATOR POSITION SENSOR "B" POSITION DTC
- Review continuous DTC retrieved from the AWD module.
Was C0686:XX actuator position sensor "B" DTC also retrieved from the AWD module?
Yes The sensors share the same power and signal return circuits. GO to E4 No The concern is isolated to the actuator position sensor "A" sensor signal circuit. GO to E2 - E2 CHECK ACTUATOR POSITION SENSOR "A" POSITION SENSOR SIGNAL CIRCUIT FOR AN OPEN
- Ignition OFF.
- Disconnect Transfer case shift actuator C2370.
- Inspect the harness and connector for damage. Verify the terminals are not splayed, damaged, or pushed out of the connector.
- Disconnect AWD module C2371.
- Inspect the harness and connector for damage. Verify the terminals are not splayed, damaged, or pushed out of the connector.
Is the resistance less than 3 ohms?
Yes GO to E3 No REPAIR the open circuit. - E3 CHECK ACTUATOR POSITION SENSOR "A" POSITION SENSOR SIGNAL CIRCUIT FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Positive Lead Measurement / Action Negative Lead C2371-4 Ground
Is the resistance greater than 10, 000 ohms?
Yes The sensor power, signal, and ground circuits are ok. INSTALL a new transfer case shift actuator. REFER to: Transfer Case Shift Motor . No REPAIR the circuit. - E4 CHECK THE AWD (ALL-WHEEL DRIVE) MODULE POWER CIRCUIT FOR VOLTAGE
- Ignition OFF.
- Disconnect AWD module C2371.
- Ignition ON.
Is the voltage within 0.3v of battery voltage?
Yes GO to E5 No REPAIR the circuit. - E5 CHECK THE AWD MODULE GROUND
- Ignition OFF.
- Measure:
Positive Lead Measurement / Action Negative Lead C2371-46 Ground
Is the resistance less than 3 ohms?
Yes GO to E6 No REPAIR the circuit. - E6 CHECK THE TRANSFER CASE POSITION SENSOR POWER CIRCUIT FOR VOLTAGE
- Ignition OFF.
- Connect AWD module C2371.
- Disconnect Transfer case shift actuator C2370.
- Ignition ON.
- Measure:
Positive Lead Measurement / Action Negative Lead C2370-1 Ground
Is the voltage between 4.7-5.3v?
Yes GO to E9 No GO to E7 - E7 CHECK THE TRANSFER CASE POSITION SENSOR POWER CIRCUIT FOR OPEN
- Ignition OFF.
- Disconnect AWD module C2371.
Is the resistance less than 3 ohms?
Yes GO to E8 No REPAIR the circuit. - E8 CHECK THE TRANSFER CASE POSITION SENSOR POWER CIRCUIT FOR SHORT TO GROUND
- Ignition OFF.
- Measure:
Positive Lead Measurement / Action Negative Lead C2371-35 Ground
Is the resistance greater than 10, 000 ohms?
Yes GO to E9 No REPAIR the circuit. - E9 CHECK TRANSFER CASE POSITION SENSOR SIGNAL RETURN FOR AN OPEN
- Ignition OFF.
- Disconnect AWD module C2371.
Is the resistance less than 3 ohms?
Yes GO to E10 No REPAIR the circuit. - E10 CHECK TRANSFER CASE POSITION SENSOR SIGNAL RETURN FOR A SHORT TO GROUND
- Ignition OFF.
- Measure:
Positive Lead Measurement / Action Negative Lead C2371-18 Ground
Is the resistance greater than 10, 000 ohms?
Yes The SIGNAL RETURN circuit is intact. The AWD module is not grounding Signal Return at pin 18. INSTALL a new AWD module. REFER to: All-Wheel Drive (AWD) Module . No REPAIR the circuit.