Scheme 27
- The rear combination light assembly are integrated with the stop/taillight, rear turn-signal light and rear side-marker light.
- The taillight assembly are integrated with the taillight and back-up light.
TECHNICAL DESCRIPTION (COMMENT)
The problem detection of rear side marker light, taillight or position light is made based on the digital feed back signal (input signal to ETACS-ECU) which operates the rear side marker light, taillight or position light. When the ignition switch is "ON", the ETACS-ECU determines the rear side marker light, taillight or position light circuit state from the load placed on the line. After 100 ms has elapsed since the start of the check, the ETACS-ECU performs a sampling with each 10 ms. If an abnormality is detected, it increases the counter by 2, and when no abnormality is detected, it decreases the counter by 1. Once the counter reaches "10", the ETACS-ECU sets the DTC B16A0 if the load is detected on the line, and sets the DTC B16A7 if no load is detected.
The problem detection of tail lamp is made based on the digital feed back signal (input signal to ETACS-ECU) which operates the tail lamp. When the ignition switch is ON, the ETACS-ECU determines the tail lamp circuit state from the load placed on the line. After 100 ms has elapsed since the start of the check, the ETACS-ECU performs a sampling with each 10 ms. If an abnormality is detected, it increases the counter by 2, and when no abnormality is detected, it decreases the counter by 1. Once the counter reaches "10," the ETACS-ECU sets the diagnosis code No. B16A8 if no load is detected.
If none of the taillights illuminate, the taillight switch input circuit or ETACS-ECU may have a problem.
If one of the taillights does not Illuminate, the wiring harness, connector(s), or rear combination light unit may have a problem, or the fuse may be burned out.