B1830

B1830-ALL DOORS UNLOCK CONTROL CIRCUIT PERFORMANCE - CLUSTER

B1830 - All Doors Unlock Control Circuit Performance - Cluster:

WHEN MONITORED
Continuously

SET CONDITION
When the Cluster senses a low or open condition on the (P240) Door Unlock Driver circuit during an unlock command for over 10 seconds, this code will set.

POSSIBLE CAUSES
- (P240) Passenger doors unlock driver circuit short to ground
- (P240) Passenger doors unlock driver circuit short to voltage
- (P240) Passenger doors unlock driver circuit open
- (P33) Door lock driver circuit short to the (P240) passenger doors unlock driver circuit
- Instrument cluster
Diagnostic Test

1. TEST FOR INTERMITTENT CONDITION

With the scan tool, record and erase DTC's
Operate the door locks several times.
Cycle the ignition from on to off.
Turn the ignition on.
With the scan tool, read DTC's.

Q: Does the scan tool display B1830-ALL DOOR UNLOCK CONTROL CIRCUIT PERFORMANCE?

YES: Go To 2
NO: The conditions that caused this code to set are not present at this time. Using the wiring diagram/schematic as a guide, inspect the wiring and connectors. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test




2. (P240) PASSENGER DOORS UNLOCK DRIVER CIRCUIT SHORT TO GROUND

Disconnect the Instrument Cluster C1 connector.
Measure the resistance between ground and the (P240) Passenger Doors Unlock Driver circuit in the Cluster C1 connector.

Q: Is the resistance below 1,000.0 ohms?

YES: Repair the (P240) Passenger Doors Unlock Driver circuit for a short to ground. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 3




3. (P240) PASSENGER DOORS UNLOCK DRIVER CIRCUIT SHORTED TO BATTERY

Turn the ignition on.
Measure the voltage between ground and the (P240) Passenger Doors Unlock Driver circuit in the Cluster C1 connector.

Q: Is there any voltage present?

YES: Repair the (P240) Passenger Doors Unlock Driver circuit for a short to voltage. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 4




4. (P240) PASSENGER DOORS UNLOCK DRIVER CIRCUIT OPEN

Turn the ignition off.
Measure the resistance between the (P33) Door Lock Driver circuit and the (P240) Passenger Doors Unlock Driver circuit in the Cluster C1 connector.

Q: Is the resistance above 4.0 ohms?

YES: Repair the (P33) Door Lock Driver or the (P240) Passenger Doors Unlock Driver circuit for an open. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 5




5. (P33) DOOR LOCK DRIVER SHORTED TO THE (P240) PASSENGER DOORS UNLOCK DRIVER CIRCUIT

Measure the resistance between the (P33) Door Lock Driver circuit and the (P240) Passenger Doors Unlock Driver circuit in the Cluster C1 connector.

Q: Is the resistance below 1.0 ohms?

YES: Repair the (P33) Door Lock Driver for a short to the (P240) Passenger Doors Unlock Driver circuit. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace the Instrument Cluster. Perform the BODY VERIFICATION TEST - VER 1. Body Verification Test