User:Jef

From Ross-Tech Wiki


16505/P0121 - Throttle Position Sensor (G69): Implausible Signal

Possible Symptoms

  • MIL on
  • Poor engine performance

Possible Causes

  • Wiring Harness issue
  • Failed Throttle Body
  • Failed ECM

Possible Solutions

  • Inspect wiring harness, see factory repair manual

Special Notes

  • For some vehicles, there may be a TPI with instructions on replacing the terminals for the throttle body.
  • Some ECMs may have a firmware update to address this issue during cold weather.




Reading Roof Electronics Switch Conditions, Electric Power Top Closed

Measuring Block Group 001 (Roof Closed)
Field 2 X Field 3 Data
1 1 0 1 1 0 1 0 1 0 X 1 0 1 0 F201 - "1" = compartment lip raised
F290 - "1" = compartment lid latched (L)
F293 - "1" = compartment lid lock unlock position
F200 - "1" - compartmnet lid latched (R)
X
Not used, always "0"
F292 - "1" = Storage Flap down
X
F171 - "1" = Top stowed in storage
F202 - "1" Top frame in closed position
F294 - "1" = Top lock open position
F295 - "1" = Top lock closed position
F172 - "1" = Top docked at windshield
Switch Point for Bow UP
Switch Point for Bow OPEN
Switch Point for Bow DEAD CENTER