System Indicators

If the system is OKAY, the ABS indicator goes off once after turning the ignition switch ON (II) without starting the engine, and then come on again and go off several seconds later after starting the engine. This occurs because the VSA control unit is turned on by the IG2 power source. The ABS indicator or VSA system indicator comes on when the VSA control unit detects a problem in the system. The ABS indicator or VSA system indicator will also come on under these conditions, even though the system is operating properly:

• The vehicle goes into a spin.
• The ABS continues to operate for a long time.
• The vehicle is subjected to an electrical signal disturbance.

If the VSA off switch is pushed, or if there is a fault in one or more of these components, only the VSA system indicator comes on

• Yaw rate sensor, lateral acceleration sensor, steering angle sensor, apply/dump solenoids, modulator unit, PGM-Fl communication, neutral position, VSA-TCS control valve sensor, VSA-TCS control valve actuator.
• Heated oxygen sensor, manifold absolute pressure sensor, crankshaft position sensor, engine coolant temperature sensor, throttle position sensor, top dead center sensor, top dead center sensor 2, intake air temperature sensor, exhaust gas recirculation, barometric pressure, idle air control valve, VTEC pressure switch, knock sensor, fuel supply system, automatic transmission, misfire detection system, automatic of the PGM-FI system.
• The VSA Activation Indicator will flash when only the drive wheels rotate or one of the drive wheels is stuck. When this occurs, the ABS indicator and VSA system indicator does not come on.

To determine the actual cause of the problem, question the customer about the problem, taking these conditions into consideration.

• When a problem is detected and the ABS or VSA indicator comes on, there are cases when the indicator stays on until the ignition switch is turned OFF, and cases when the indicator goes off automatically when the system returns to normal. For DTC 61 and 62, the indicator goes off automatically when the system returns to normal. For all other codes, the indicator stays on until the ignition switch is turned OFF.
• For DTCs 12, 14, 16, 18, 21, 22, 23, 24, 41, 42, 43, 44, 51 & 52, the ABS indicator goes off when the vehicle is driven again and the system is okay after the ignition switch is turned from OFF to ON (II). However, if the DTC is cleared, the CPU resets and the indicator goes off right after the engine is started if the system is okay.
• The ABS is NOT operational when the ABS indicator is ON; the VSA is not operational when the VSA indicator is ON.
• When the VSA indicator and MIL are both ON, troubleshoot the PGM-FI system first.