Diagnostic Routine D
Diagnostic Routine D
Diagnostic Overview
C113A:11 or C113A:15
Refer to Wiring Diagram Set 112 for schematic and connector information Electrical Diagrams.
Normal Operations and Fault Conditions
The wakeup control circuit wakes up the PCM (Powertrain Control Module) prior to engine cranking. The PCM (Powertrain Control Module) needs to wake up prior to a crank request so that it has time to go through its initialization. The wakeup control circuit also powers the PATS (Passive Anti-Theft System) transceiver. The wakeup control circuit is controlled by the BCM (Body Control Module). The wakeup control circuit is FET (Field-Effect Transistor) protected. REFER to Field Effect Transistor (FET) Protection .
The BCM (Body Control Module) activates the wakeup control circuit when:
- the driver door is opened.
- a remote start request is received (if equipped with factory remote start).
- the brake pedal is pressed.
- a key is inserted into the ignition.
- or when the ignition is in the RUN or START position.
DTC Fault Trigger Conditions
Visual Inspection and Diagnostic Pre-checks
- BCM (Body Control Module) fuse 18 (10A).
Pinpoint Test
1. RETRIEVE THE BCM (Body Control Module) DTCs (Diagnostic Trouble Codes) FROM THE SELF-TEST
1. Using a scan tool, perform the BCM (Body Control Module) self-test.
Is DTC (Diagnostic Trouble Code) C113A:11 recorded?
2. CHECK THE PCM (Powertrain Control Module) FOR A SHORT TO GROUND
1. Ignition OFF.
2. Disconnect: PCM (Powertrain Control Module) C175B.
3. Ignition ON.
4. Using a scan tool, clear BCM (Body Control Module) CMDTCs (Continuous Memory Diagnostic Trouble Codes).
5. Using a scan tool, perform the BCM (Body Control Module) self-test.
Is DTC (Diagnostic Trouble Code) C113A:11 retrieved?
3. CHECK THE PATS (Passive Anti-Theft System) TRANSCEIVER FOR A SHORT TO GROUND
1. Disconnect: PATS (Passive Anti-Theft System) Transceiver.
2. Using a scan tool, clear BCM (Body Control Module) CMDTCs (Continuous Memory Diagnostic Trouble Codes).
3. Using a scan tool, perform the BCM (Body Control Module) self-test.
Is DTC (Diagnostic Trouble Code) C113A:11 retrieved?
4. CHECK THE WAKEUP CONTROL CIRCUIT FOR A SHORT TO GROUND
1. Ignition OFF.
2. Disconnect: BCM (Body Control Module) C2280F.
3. Measure:
Is the resistance greater than 10,000 ohms?
5. CHECK THE WAKEUP CONTROL CIRCUIT FOR AN OPEN OR SHORT TO VOLTAGE
1. Start the engine.
Does the engine start?
6. CHECK THE WAKEUP CONTROL CIRCUIT FOR AN OPEN
1. Ignition OFF.
2. Disconnect: PATS (Passive Anti-Theft System) Transceiver.
3. Disconnect: BCM (Body Control Module) C2280F.
4. Measure:
Is the resistance less than 3 ohms?
7. CHECK THE WAKEUP CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
1. Ignition OFF.
2. Disconnect: PATS (Passive Anti-Theft System) Transceiver.
3. Disconnect: BCM (Body Control Module) C2280F.
4. Ignition ON.
5. Measure:
Is any voltage present?
8. CHECK THE PCM (Powertrain Control Module) FOR A SHORT TO VOLTAGE
1. Ignition OFF.
2. Disconnect: PCM (Powertrain Control Module) C175B.
3. Ignition ON.
4. Measure:
Is any voltage present?
9. CHECK FOR CORRECT PCM (Powertrain Control Module) OPERATION
1. Disconnect and inspect all the PCM (Powertrain Control Module) connectors.
2. Repair:
- corrosion (replace connector or terminals - clean module pins)
- damaged or bent pins - replace terminals/pins
- pushed-out pins - replace pins as necessary
3. Reconnect the PCM (Powertrain Control Module) connectors. Make sure they seat and latch correctly.
4. Operate the system and verify the concern is still present.
Is the concern still present?
10. CHECK FOR CORRECT BCM (Body Control Module) OPERATION
1. Disconnect and inspect all the BCM (Body Control Module) connectors.
2. Repair:
- corrosion (replace connector or terminals - clean module pins)
- damaged or bent pins - replace terminals/pins
- pushed-out pins - replace pins as necessary
3. Reconnect the BCM (Body Control Module) connectors. Make sure they seat and latch correctly.
4. Operate the system and verify the concern is still present.
Is the concern still present?
