• | 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 |
---|---|---|---|---|
Driver Information Center Switch Signal | B3567 02 | B3567 04 | B3567 01 | -- |
Driver Information Center Reset Switch Signal | 1 | 1 | 1 | -- |
Low Reference | -- | B3567 04 | -- | -- |
1. Driver Information Center Switch Malfunction |
The driver information center switch is a multiplexed switch. Battery power is provided to the driver information center switch via the instrument cluster. The driver information center switch signal circuit is pulled up to battery voltage in the instrument cluster. The instrument cluster also provides the driver information center switch with a low reference. The switch input to the instrument cluster is pulled low when a switch is activated. The driver information center switch is a momentary contact switch that connects a series of resistors in a resistor ladder format. The instrument cluster monitors the driver information center switch signal circuit to determine the driver information center switch inputs. Each switch state - Menu, UP, DOWN - corresponds to a certain resistance value. The instrument cluster determines the switch pressed by the voltage drop across the resistors.
• | The ignition is in OFF, ACCESSORY or RUN position. |
• | The system voltage is between 9-16 V. |
The instrument cluster detects that the driver information center switch signal circuit is shorted to battery.
The instrument cluster detects that the driver information center switch signal circuit is shorted to ground.
The instrument cluster detects that the driver information center switch signal circuit is open.
The instrument cluster detects that the driver information center switch is stuck.
The instrument cluster ignores the driver information center switch inputs.
The DTC will become history if the instrument cluster no longer detects a malfunction.
Driver Information Center (DIC) Description and Operation
Control Module References for scan tool information
The driver information center switch is a multiplexed switch. Battery power is provided to the driver information center switch via the instrument cluster. The driver information center switch signal circuit is pulled up to battery voltage in the instrument cluster. The instrument cluster also provides the driver information center switch with a low reference. The switch input to the instrument cluster is pulled low when a switch is activated. The driver information center switch is a momentary contact switch that connects a series of resistors in a resistor ladder format. The instrument cluster monitors the driver information center switch signal circuit to determine the driver information center switch inputs. Each switch state - Menu, UP, DOWN - corresponds to a certain resistance value. The instrument cluster determines the switch pressed by the voltage drop across the resistors.
• | The ignition is in OFF, ACCESSORY or RUN position. |
• | The system voltage is between 9 V and 16 V |
The instrument cluster detects that the driver information center switch signal circuit is shorted to battery.
The instrument cluster detects that the driver information center switch signal circuit is shorted to ground.
The instrument cluster detects that the driver information center switch signal circuit is open.
The instrument cluster detects that the driver information center switch is stuck.
The instrument cluster ignores the driver information center switch inputs.
The DTC will become history if the instrument cluster no longer detects a malfunction.
Control Module References for scan tool information
• | Ignition ON, observe the scan tool Driver Information Center Switch parameter, that when the S78 Turn Signal/Multifunction Switches Menu, UP, DOWN are pressed and released the scan tool parameter toggles between Menu, Up, Down and Inactive. |
• | Ignition ON, observe the scan tool Driver Information Center Reset Switch parameter, that when the S625 Driver Information Center Reset Switch is pressed and released the scan tool parameter toggles between Active and Inactive. |
⇒ | If greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the P16 Instrument Cluster. |
⇒ | If any are not Inactive, test the signal circuits terminal 5 and terminal 12 for a short to ground. If the circuit tests normal, replace the P16 Instrument Cluster |
⇒ | If not Up, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the P16 Instrument Cluster. |
⇒ | If not Active, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the P16 Instrument Cluster. |
⇒ | If not within the specified range, replace the S78 Turn Signal/Multifunction Switch. |
⇒ | If not within the specified value, replace the S78 Turn Signal/Multifunction Switch. |
⇒ | If not within the specified value, replace the S78 Turn Signal/Multifunction Switch. |
⇒ | If not within the specified value, replace the S78 Turn Signal/Multifunction Switch. |
⇒ | If greater than the specified value, replace the S78 Turn Signal/Multifunction Switch. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for instrument cluster replacement, setup, and programming |