Captiva |
||||||||
|
|
• | 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. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Hood Ajar Switch Signal | B3006 5A | B3006 5A | B3006 5A | - |
Bonnet Closed Switch Signal | B3006 5A | B3006 5A | B3006 5A | - |
Ground | B3006 5A | B3006 5A | -- | -- |
The body control module (BCM) monitors the voltage input of the bonnet open switch signal circuit and the bonnet open closed switch signal circuit. With the bonnet open, the bonnet ajar portion of the switch is closed, grounding the bonnet ajar switch signal circuit from the BCM, and the bonnet closed portion of the switch is open. With the bonnet closed, the bonnet closed portion of the switch is closed, grounding the bonnet closed switch signal circuit from the BCM, and the bonnet ajar portion of the switch is open. During proper operation, the two separate voltage signals at the BCM should never be at the same voltage.
The BCM continuously monitors for this DTC
Both the bonnet open switch signal circuit and the bonnet closed switch signal circuit are simultaneously in an active or inactive state.
• | Remote start functions will be disabled. |
• | The bonnet ajar switch inputs will be ignored by content theft deterrent (CTD). |
• | A current DTC will clear when the conditions for setting are no longer present. |
• | A history DTC will clear after 40 malfunction free ignition cycles. |
Keyless Entry System Description and Operation
Control Module References for scan tool information
Ignition ON, observe the scan tool BCM Bonnet Open Switch and Bonnet Closed Switch parameters. With the bonnet open, the Bonnet Open Switch parameter should read Active and the Bonnet Closed Switch parameter should read Inactive. With the bonnet closed, the Bonnet Open Switch parameter should read Inactive and the Bonnet Closed Switch parameter should read Active.
⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
⇒ | If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM. |
⇒ | If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. |
⇒ | If greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the BCM. |
⇒ | If less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the BCM. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for BCM replacement, programming and setup |
© Copyright Chevrolet. All rights reserved |