Self-Diagnostic System
To enter Hybrid Electronic Cluster (HEC) self-diagnostics, press instrument cluster trip odometer reset button before turning ignition switch to RUN position. Within 5-8 seconds, odometer will display "tESt". Trip odometer reset button must be released within 3 seconds of odometer displaying "tESt" then, repeatedly press trip odometer reset button through odometer displays. Press trip odometer reset button again and any continuous diagnostic trouble codes will be displayed before odometer advances to next display. See HYBRID ELECTRONIC CLUSTER SELF-DIAGNOSTIC MODES table. To exit instrument cluster self-test mode, turn ignition switch to LOCK position.
HYBRID ELECTRONIC CLUSTER SELF-DIAGNOSTIC MODES (1)
| Odometer Display | Description | ||
|---|---|---|---|
| GAGE | Activates Sweep Of All Gauges: Displays Present Gauge Values; Performs ROM & EE Checksum Tests | ||
| All Segments Illuminated | Carries Out A Gauge Sweep Of All Gauges To 45° From Rest Position; Illuminates All Odometer Segments | ||
| bulb | Illuminates LOW FUEL Warning Light | ||
| r | Returns To Normal Operation All Micro-Controlled Lights & Leds; Displays Hexadecimal Values For ROM. | ||
| nr | Displays Hexadecimal Value For ROM Level Type MSP & LSB As Stored In VNM | ||
| EE | Displays Hexadecimal Value For EE; Flashes Alternating FAIL & EE Level Messages | ||
| dt | Displays Hexadecimal Coding Of Final Manufacturing Test Date | ||
| CF1 | Displays Hex Coding Of A1tec NVM Module Configuration Settings; English/Metric units 1=English base/RPO; 1=RPO | ||
| E ####.# | Displays English Speed Value Being Input; Speedometer Will Indicate Present Speed | ||
| Blank #### | Displays Metric Speed Value Being Input; Speedometer Will Indicate Present Speed | ||
| t #### | Displays Tachometer Value Being Input To Instrument Cluster; Tachometer Will Indicate Present RPM; Display Will Show 0 If Input Is Not Received, If Input Received Is Invalid For One Second Or More Or If Speed Is 0 | ||
| F ### | Displays Present Fuel Level Being Input To Instrument Cluster As A Ratio; If Value Displayed Is 255, Circuit Is Open. If Value Displayed Is 000-009, Circuit Is Shorted; Normal Range Will Be 10-254; If Value Displayed Is 250, Gauge Should Read Full. If Value Displayed Is 30, Gauge Should Read Empty | ||
| FP ### | Displays present fuel level percent status in decimals. Display will read between 0 and 254 for normal range with 255 indicating an open or short. | ||
| ### C | Displays Present Temperature Analog/Digital Input Ration In Decimal Value; Temperature Gauge Will Indicate Present Temperature; Normal Range Is 0-255; Values Decrease As Temperature Increases | ||
| Ot ### | Displays Outside Air Temperature Analog/Digital Input In Decimals; OAT Display Will Indicate Present OAT (RPO Cluster Only); Short Circuit Range Is From 000-009; Normal Range Is 10-254 | ||
| blank ##.# | Displays Stored Odometer Value In NVM miles; If NVM For Odometer Is Corrupt, ERROR Will Be Displayed | ||
| bAtt | Will Indicate Battery Reference Voltage Reading In Volts | ||
| HSd | Displays Present Status Of High Voltage Shutdown; 0 = Voltage Not High; 1 = Over Voltage Shutdown | ||
| HLP | Displays Input Status Of Headlight Switch; P = Headlights On (Pulse Width Modulation); O = Headlights Off (Open) | ||
| PA | Displays 8-Bit Hexadecimal Value For Port "A" Readings | ||
| Pb | Displays 8-Bit Hexadecimal Value For Port "B" Readings | ||
| PE | Displays 8-Bit Hexadecimal Value For Port "E" Readings | ||
| Pd | Displays 7-Bit Hexadecimal Value For Port Dlc Readings | ||
| PS | Displays 8-Bit Hexadecimal Value For Port "S" Readings | ||
| PT | Displays 8-Bit Hexadecimal Value For Port "T" Readings | ||
| PP | Displays 8-Bit Hexadecimal Value For Port "P" Readings | ||
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