Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
DTC Descriptors
DTC B3601 02: Ignition Switch Key Capture Solenoid Circuit Short to GroundDiagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Ignition Switch Key Capture Solenoid Control (Ignition Lock Cylinder Solenoid) | B3601 02 | 1 | -- | -- |
Ignition Switch Key Capture Solenoid Ground (Ignition Lock Cylinder Solenoid) | -- | 1 | -- | -- |
1. Ignition cannot be turned ON or OFF | ||||
Circuit/System Description
The body control module (BCM) applies voltage to the key capture solenoid (ignition lock cylinder solenoid) under specific conditions to allow the ignition to be turned ON or OFF.
Conditions for Running the DTC
This DTC runs in all ignition modes
Conditions for Setting the DTC
B3601 02
The BCM detects a voltage level on the control circuit less than 2 volts when the key capture solenoid (ignition lock cylinder solenoid) is commanded ON.
Action Taken When the DTC Sets
The key capture solenoid (ignition lock cylinder solenoid) output is disabled.
Conditions for Clearing the DTC
| • | A current DTC will clear when the condition for setting the DTC is no longer present. |
| • | A history DTC will clear after 40 malfunction-free ignition cycles. |
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Steering Wheel and Column Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
With the key in the vehicle, observe the scan tool Key Capture Solenoid Command parameter while cycling the ignition switch ON and OFF. The parameter should cycle between On and Off.
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the key capture solenoid (Ignition Lock Cylinder).
- Test for less than 5 ohms between the ground circuit terminal A and ground.
- Connect a test lamp between the control circuit terminal B and the ground circuit terminal A.
- Command the Key Capture Solenoid ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded states.
- If all circuits tests normal, test or replace the key capture solenoid (Ignition Lock Cylinder).
| ⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
| ⇒ | If the test lamp is always ON, test the control circuit for short to voltage. If the circuit tests normal, replace the BCM. |
| ⇒ | If the test lamp is always OFF, test the control circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. |
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the park switch (automatic transmission shift lever).
- Ignition OFF, test for less than 5 ohm of resistance between the ground circuit terminal Z2 and ground.
- Ignition OFF, disconnect the harness connector at the ignition lock cylinder control actuator.
- Ignition ON, verify a test lamp illuminates between the control circuit terminal B and ground.
- Connect a test lamp between the control circuit terminal A and the control circuit terminal B.
- Ignition ON, cycle the gear shift from PARK to DRIVE. The test lamp should turn ON and OFF when cycled between gears.
- If all circuits test normal, replace the ignition lock cylinder control actuator (transmission control replacement).
| ⇒ | If greater than the specified value, test the ground circuit for an open/high resistance. |
| ⇒ | If the test lamp does not illuminate, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. |
| ⇒ | If the test lamp is always ON, test the control circuit for a short to ground. If circuit tests normal, replace the park switch (transmission control replacement). |
| ⇒ | If the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If circuit tests normal, replace the park switch (transmission control replacement). |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for BCM replacement, setup, and programming |
