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Fail-Safe Chart

WARNING: This page is about a different car, the 2008 Toyota Tundra. However, it is still accessible from the selected car via links, so may be relevant.

Speedometer: 

SPEEDOMETER FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Vehicle speed pulse is interrupted Controls input signals as 0 km/h (0 mph) Normal data is received
Vehicle speed signal is interrupted Controls input signals as 0 km/h (0 mph) Normal data is received

Tachometer: 

TACHOMETER FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Engine revolution signal is interrupted for 1.2 seconds Controls input signals as 0 rpm Normal data is received

Engine coolant temperature gauge: 

ENGINE COOLANT TEMPERATURE GAUGE FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, engine coolant temperature data is interrupted for 3.1 seconds Gauge needle indicates below "C" Engine coolant temperature data is received

Volt gauge: 

VOLT GAUGE FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
EEPROM cannot determine constant value due to EEPROM reading malfunction or other malfunction Default control Normal data is received

A/T oil gauge: 

A/T OIL GAUGE FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, A/T oil signal is interrupted for 1.2 seconds Gauge needle indicates below "C" Normal data is received

Fuel signal (Gauge signal): 

FUEL SIGNAL FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, sender signal is interrupted for 60 seconds and malfunction signal is received from one of gauges for 10 to 20 seconds Needle indicates "E", and warning light comes on Ignition switch is turned from OFF to ON and normal data is received

Odometer: 

ODOMETER FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Vehicle speed pulse signal integration value is interrupted for 0.12 seconds Data received most recently remains displayed Normal data is received

A/T shift position indicator: 

A/T SHIFT POSITION INDICATOR FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
"P to D" data is interrupted All data cannot be displayed: Shift position indicator goes off Normal data is received

Sequential shift position indicator: 

SEQUENTIAL SHIFT POSITION INDICATOR FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Gear position signal is interrupted Data received most recently remains displayed (when data is interrupted for 3.1 seconds, shift position indicator goes off) Normal data is received
Sequential mode indicator and sequential mode enable signals are interrupted Data received most recently remains displayed (when data is interrupted for 3.1 seconds, shift position indicator goes off) Normal data is received

SRS warning light: 

SRS WARNING LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, SRS warning light on/blink request signal (9.0 V or higher) is interrupted for 10 seconds, or SRS warning light on/blink request signal (below 9 V) is interrupted for 60 seconds SRS warning light remains on until ignition switch OFF Normal data is received

ABS warning light: 

ABS WARNING LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, ABS warning light signal is interrupted for 1 second ABS warning light remains on until ignition switch OFF Normal data is received

BEAM indicator light: 

BEAM INDICATOR LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Headlight HI on instruction signal is interrupted for 10 seconds during CAN bus wake-up mode
  • Ignition switch is ON: BEAM indicator light condition is maintained
  • Ignition switch is OFF: BEAM indicator light is off
 Normal data is received

CRUISE main indicator light: 

CRUISE MAIN INDICATOR LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
CRUISE main indicator light signal is interrupted Display condition is maintained until ignition switch OFF Normal data is received

Driver side seat belt warning light: 

DRIVER SIDE SEAT BELT WARNING LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Driver side seat belt buckle switch signal is interrupted for 10 seconds during CAN bus wake-up mode
  • Ignition switch is ON: Driver seat belt warning light condition is maintained
  • Ignition switch is OFF: Driver seat belt warning light is off
 Normal data is received

DOOR indicator light: 

DOOR INDICATOR LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Driver side courtesy switch, front passenger side courtesy switch, rear door LH courtesy switch, rear door RH courtesy switch and luggage courtesy switch signals are interrupted for 10 seconds during CAN bus wake-up mode
  • Ignition switch is ON: DOOR indicator light condition is maintained
  • Ignition switch is OFF: DOOR indicator light is off
 Normal data is received

Brake warning light / Red (Malfunction): 

BRAKE WARNING LIGHT / RED FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Brake warning light signal is interrupted Brake warning light condition is maintained until ignition switch OFF Normal data is received
While ignition switch is ON position, brake warning light signal is interrupted for 1 second Brake warning light condition is maintained until ignition switch OFF Normal data is received

HEAD indicator light: 

HEAD INDICATOR LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Headlight LO on request signal is interrupted for 10 seconds during CAN bus wake-up mode
  • Ignition switch is ON: HEAD indicator light condition is maintained
  • Ignition switch is OFF: HEAD indicator light is off
 Normal data is received

SLIP indicator light: 

SLIP INDICATOR LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Frame data (including SLIP indicator on/blink request signal) is interrupted for 0.9 seconds SLIP indicator light condition is maintained until ignition switch OFF Normal data is received

TAIL indicator light: 

TAIL INDICATOR LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
Taillight on request signal is interrupted for 10 seconds during CAN bus wake-up mode
  • Ignition switch is ON: TAIL indicator light condition is maintained
  • Ignition switch is OFF: TAIL indicator light is off
 Normal data is received

Tire pressure warning light: 

TIRE PRESSURE WARNING LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, tire pressure warning signals are interrupted
  • Ignition switch is ON: Tire pressure warning light blinks for 60 to 64 seconds
  • Ignition switch is OFF: Tire pressure warning light is off
 Normal data is received

A/T OIL TEMP warning light: 

A/T OIL TEMP WARNING LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, A/T OIL TEMP warning signals are interrupted Display condition is maintained until ignition switch OFF Normal data is received

CHARGE warning light: 

CHARGE WARNING LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, CHARGE warning signals are interrupted Display condition is maintained until ignition switch OFF Normal data is received

OIL PRESSURE warning light: 

OIL PRESSURE WARNING LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, OIL PRESSURE warning light request signals are interrupted Display condition is maintained until ignition switch OFF Normal data is received

4LO indicator light: 

4LO INDICATOR LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, frame (including B INDL 4 bit) is interrupted for 3 seconds Display condition is maintained until ignition switch OFF Normal data is received

WASHER warning light: 

WASHER WARNING LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, washer fluid level low signals are interrupted Display condition is maintained until ignition switch OFF Normal data is received

AUTO LSD indicator light: 

AUTO LSD INDICATOR LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, frame (including B ALSD bit) is interrupted Display condition is maintained until ignition switch OFF Normal data is received

VSC OFF indicator light: 

VSC OFF INDICATOR LIGHT FAIL-SAFE CHART

Condition Fail-safe Operation Fail-safe Deactivation Condition
While ignition switch is ON, frame (including B TRCW bit) is interrupted for 0.9 seconds Display condition is maintained until ignition switch OFF Normal data is received
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