Fail-Safe Chart

WIPER AND WASHER: WIPER AND WASHER SYSTEM: FAIL-SAFE CHART

1. FRONT WIPER SYSTEM

(a) When the windshield wiper switch assembly is in any position other than "OFF" and the blades are frozen or a wiper pivot is seized, a malfunction is detected by the windshield wiper relay assembly (auto wiper relay) and the wiper operation is stopped.

HINT
Recovery condition: Engine switch off or windshield wiper switch assembly off.

(b) When the rain sensor is malfunctioning and the windshield wiper switch assembly is in the AUTO position, the front wiper system will use the mode that the rain sensor is determined to be appropriate before the rain sensor malfunctioned.

HINT
Recovery condition: Signal level error cancellation from rain sensor.

(c) When the rain sensor overheats and the front wiper is in the HI operation mode, the front wiper system is changed to the LO operation mode.

HINT
* Recovery condition: Engine switch off or wiper operation signal is not AUTO or LO.
* A mode change is not carried out when the rain sensor is malfunctioning in high temperature, or in low temperature.