Last Modified: 11-29-2007 1.6 U
Service Category: Vehicle Interior Section: Meter/Gauge/Display
Model Year: 2008 Model: Sequoia Doc ID: RM000002Z4U003X
Title: METER / GAUGE / DISPLAY: METER / GAUGE SYSTEM: FAIL-SAFE CHART (2008 Sequoia)

FAIL-SAFE CHART

Speedometer

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 for 0.12 seconds

Controls input signals as 0 km/h (0 mph)

Normal data is received

ODO/TRIP Meter

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

While ignition switch is ON, vehicle speed pulse signal integration value is interrupted for 0.12 seconds

Data received most recently remains displayed

Normal data is received

Tachometer

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

Engine revolution signal is interrupted for 0.12 seconds

Controls input signals as 0 rpm

Normal data is received

Engine Coolant Temperature Gauge

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"

Normal data is received

Fuel Signal (Gauge Signal)

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

Voltage Meter

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

Oil Pressure Receiver Gauge

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

EEPROM cannot determine constant value due to EEPROM reading malfunction or other malfunction

Gauge needle does not move

Normal data is received

A/T Oil Temperature Receiver Gauge*1

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

While ignition switch is ON, A/T oil temperature data is interrupted for 3.1 seconds

Gauge needle indicates below "C"

Normal data is received

A/T Shift Position Indicator

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

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

BEAM Indicator Light

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

HEAD Indicator Light*2

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

TAIL Indicator Light*3

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

ABS Warning Light

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

Brake Warning Light/Red (Malfunction)

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

While ignition switch is ON, brake warning light signal is interrupted for 1 second

Brake warning light condition is maintained until ignition switch off

Normal data is received

Parking brake switch signal is interrupted for 10 seconds during CAN bus wake-up mode

  • Ignition switch is ON: Brake warning light condition is maintained
  • Ignition switch is off: Brake warning light is off

Normal data is received

Height Control Indicator Light*4

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

Height control indicator light signal is interrupted

Height control indicator light condition is maintained until ignition switch off

Normal data is received

4HI Indicator Light*5

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

While ignition switch is ON, frame (including B IND4WD bit) is interrupted for 3 seconds

Display condition is maintained until ignition switch off

Normal data is received

4LO Indicator Light*5

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

While ignition switch is ON, frame (including B INDL4 bit) is interrupted for 3 seconds

Display condition is maintained until ignition switch off

Normal data is received

CENTER DIFF. Indicator Light*5

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

While ignition switch is ON, frame (including B INDDL bit) is interrupted for 3 seconds

Display condition is maintained until ignition switch off

Normal data is received

AUTO LSD Indicator Light

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

SRS Warning Light

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

A/T OIL TEMP Warning Light

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

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

Driver Side Seat Belt Warning Light

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

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 back door 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

SLIP Indicator Light

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

Frame data (including SLIP indicator on/blink request signal) is interrupted

SLIP indicator light condition is maintained until ignition switch off

Normal data is received

VSC OFF Indicator Light

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

While ignition switch is ON, VSC OFF indicator light signal is interrupted

Display condition is maintained until ignition switch off

Normal data is received

Tire Pressure Warning Light

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

WASHER Warning Light*6

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

CRUISE Main Indicator Light

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

TOW HAUL Indicator Light*7

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

TOW HAUL Indicator Light signal is interrupted

Display condition is maintained until ignition switch off

Normal data is received

MAIN REQD Indicator Light*8

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

When the odometer reading upon reset cannot be determined

Control assuming odometer display of 0 upon reset

Normal data is received

When the current odometer reading cannot be determined

The indicator is turned on

Normal data is received

EPS Warning Light

Condition

Fail-safe Operation

Fail-safe Deactivation Condition

EPS warning Light signal is interrupted

Display condition is maintained until ignition switch off

Normal data is received

*1: w/ A/T Oil Temperature Receiver Gauge

*2: for U.S.A.

*3: except U.S.A.

*4: w/ Air Suspension

*5: for 4WD

*6: w/o Multi-information Display

*7: for 3UR-FE with Towing Package

*8: for U.S.A. without Multi-information Display