Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Key In Ignition Alarm Switch Signal Circuit | -- | B2961 | -- | -- |
The body control module (BCM) monitors the ignition key alarm switch. When the key is in the ignition, the ignition key alarm switch is closed and the signal circuit is low. When the key is not in the ignition, the ignition key alarm switch is open and the signal circuit is high.
The ignition is ON.
• | The ignition 1 input is active and the key in ignition switch signal circuit is inactive (signal circuit is high). |
• | The above conditions must be present for more than 5 seconds. |
The BCM stores DTC B2961 in memory.
• | The DTC becomes history when the fault is no longer present. |
• | A history DTC will clear after 100 consecutive ignition cycles if the condition for the malfunction is no longer present. |
• | The BCM receives the clear code command from the scan tool. |
⇒ | If greater than 1 ohm test the ground circuit for an open/high resistance. |
⇒ | If not Yes, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the BCM. |
⇒ | If not Off, test the ignition 1 voltage circuit for a short to voltage. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM replacement, setup, and programming |