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MWI DIAGNOSIS SYSTEM (COMBINATION METER) MWI-19 < SYSTEM DESCRIPTION > C D E F G H I J K L M B A O P DIAGNOSIS SYSTEM (COMBINATION METER) Description INFOID:0000000011279787 COMBINATION METER SELF-DIAGNOSIS MODE The following meter functions can be checked during Combination Meter Self-Diagnosis Mode: • Pointer sweep of speedometer, tachometer and gauges. • Illumination of all LCD segments and color patterns for meter displays. • Illumination of all lamps/LEDs that are controlled by the combination meter (regardless of switch status). STARTING COMBINATION METER SELF-DIAGNOSIS MODE NOTE: • Check combination meter power supply and ground circuits if self-diagnosis mode does not start. Refer to MWI-60, "COMBINATION METER : Diagnosis Procedure" . Replace combination meter if power supply and ground circuits are found to be normal and self-diagnosis mode does not start. Refer to • Combination meter self-diagnosis mode will function with the ignition switch in ON. Combination meter self- diagnosis mode will exit upon turning the ignition switch to OFF. How to Initiate Self-Diagnosis Mode 1. Turn ignition switch OFF. 2. While pressing the trip reset switch (1), turn ignition switch ON. 3. Keep the trip reset switch for 1 seconds or more. 4. Press the trip reset switch at least 3 times. (Within 7 seconds after the ignition switch is turned ON.) 5. “Work instruction code” is indicated in the top portion of informa- tion display and self-diagnosis is started. 6. The mode switches in the order shown below each time the trip reset switch is pressed. NOTE: If the trip reset switch is not operated for 20 seconds or more, the self-diagnosis mode is automatically cancelled. AWNIA3394ZZ Test order Test item Description 1 Work instruction code This item is displayed, but not used. 2 Part number 3 Software code 4 EEPROM code 5 Hardware code 6 P.C.B code 7 Circuit check The pointer of the following items moves from 0 to MAX twice. 8 Color check *1 Performs the color check of the information display. |