DTC 61

Wiring Diagram:

CIRCUIT DESCRIPTION:
- When the ignition switch is first turned "ON" battery voltage is applied to the "AIR BAG" warning lamp and to the "Ignition 1" input terminal "B9." The SDM responds by flashing the "AIR BAG" warning lamp seven times alternating between the primary and redundant lamp drivers. The SDM monitors the primary lamp driver output by comparing the output state at "AIR BAG Indicator" terminal "A9" to the microprocessor commanded state. When "Ignition 1" is above a specified value and the output state does not match the commanded state of the primary lamp driver for 400 milliseconds DTC 61 is set.

DTC WILL SET WHEN:
- "Ignition 1" voltage is above a specified value and the output state at the "AIR BAG Indicator" terminal "A9" does not match the commanded state of the primary lamp driver for 400 milliseconds. This test is run every 100 milliseconds during "Continuous Monitoring" tests.

ACTION TAKEN:
- SDM attempts to turn "ON" the "AIR BAG" warning lamp using the redundant lamp driver and sets a diagnostic trouble code.

DTC WILL CLEAR WHEN:
- The ignition switch is turned "OFF."

Diagnostic Chart:

DTC CHART TEST DESCRIPTION: Number(s) below refer to circled number(s) on the diagnostic chart.
1. This test rechecks whether an abnormality is in SDM or in "AIR BAG" warning lamp circuity. DIAGNOSTIC AIDS: Refer to CHARTS B and C to diagnose warning lamp circuit malfunctions.