Question about 1992 Toyota Pickup

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What is fault code 21 on a 1992 toyota xtra cab?

I am getting fault code 21... How do I find out what that is?

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  • Toyota Master
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Generally speaking code 21 for Toyota is a problem with the O2 sensor circuit. It could be the sensor or the wiring back to the computer.

Posted on Oct 03, 2012

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Posted on Jan 02, 2017

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Ted Schore

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SOURCE: Timing belt change

its involved, unless you are a mechanic, then you need to find a good shop to replace it, and any related items. tensioner pulleys, seals, water pump, ect.

Posted on Sep 23, 2009

Anonymous

  • 42 Answers

SOURCE: trying to get a alternator out of a 85 toyota truck sr-5 xtra cab

Oh, that is fun. It is easyest to drain the radiator and pull the lower radator hose. it is tight but it will come out. it beats pulling the distributor and power steering pump though. That is a tight fit. Good luck.

Posted on May 01, 2009

Anonymous

  • 14 Answers

SOURCE: tune u or a 2004 toyota tacome 2wd xtra-cab

check label under hood should be there if not what size engine

Posted on Jan 19, 2009

emissionwiz

Marvin

  • 85222 Answers

SOURCE: where fuel filter located Toyota 2004 tacoma xtra cab Prerunner?

The fuel filter is underneath the intake plenum on the left side of the engine. To access it, you don't need to take off the intake or remove the starter like some have recommended. Take off the driver side front tire and access it through the wheel well. You may need to take off some plastic mud flaps and whatnot, but when I did this, it was a piece of cake. Make sure before you take off the banjo fittings on both sides of the fuel filter that you release the fuel pressure in the lines(take off the fuel cap).

Posted on Feb 16, 2012

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1 Answer

CAMRY ABS FAULT CODES 35&21 HAVE REPLACED R/H/F SENSOR & ABS PUMP/MODULE, STILL THE SAME


code 21 is

Open or short circuit in 2?position solenoid circuit for left front wheel

pop possible causes ABS actuator/SFLR or SFLH circuit



Oct 11, 2016 | 2001 Toyota Camry

1 Answer

What is a b2293 code on 2003 mercury mountaineer


B2293

Pinpoint Test H: LFC 19 and 21/DTC B2293 - Restraint System Airbag Status
Normal Operation
The restraints control module (RCM) checks all of the front air bag circuits for faults. If the RCM detects one of the following faults on any of the front air bag circuits, it will store diagnostic trouble code (DTC) B2293 in memory and, depending on the fault, flash either lamp fault code (LFC) 19 or 21 (or higher priority code if one exists) on the air bag indicator.
Fault Conditions
The RCM monitors for the following fault conditions:
  • low resistance.
  • circuit open.
  • circuit short to voltage.
  • circuit short to ground.
Possible Causes
A driver air bag status fault can be caused by:
  • damaged wiring, terminals, or connectors.
  • a faulty clockspring.
  • a faulty driver air bag module.
  • RCM is faulted.
A passenger air bag status fault can be caused by:
  • damaged wiring, terminals, or connectors.
  • a faulty passenger air bag module.
  • RCM is faulted.
21 Restraint System - Air Bag Status (Passenger Front Air Bag Circuit Fault) Go To Pinpoint Test H .

Sep 06, 2016 | 2003 Mercury Mountaineer

2 Answers

I have a 1998 Toyota starlet and I have a abs light that wont go away !! fault code 21?? when I turn ignition on it clicks twice under bonnet kinda loud please help me ????


Your anti lock brake system is experiencing a problem. Don't ignore this. have a diagnostic test done at a garage or Toyota dealership to reveal what the test codes mean and what it will cost to fix.

Nov 16, 2015 | Toyota Cars & Trucks

1 Answer

2004 grand marquis airbag code 21. need trobleshooting info.where is control module mounted?


You do not want to be messing with airbags unless you are well trained with them. You have a resistance problem indicting an airbag fault on the passenger side from what info I could find. That indicates in a crash that that airbag will not be functioning properly or at all. Find a professional as airbags are very dangerous if you do not know what you are doing.

Jan 16, 2014 | 2004 Mercury Grand Marquis

1 Answer

Where fuel filter located Toyota 2004 tacoma xtra cab Prerunner?


The fuel filter is underneath the intake plenum on the left side of the engine. To access it, you don't need to take off the intake or remove the starter like some have recommended. Take off the driver side front tire and access it through the wheel well. You may need to take off some plastic mud flaps and whatnot, but when I did this, it was a piece of cake. Make sure before you take off the banjo fittings on both sides of the fuel filter that you release the fuel pressure in the lines(take off the fuel cap).

Feb 16, 2012 | 2004 Toyota Tacoma

1 Answer

What do codes 12 21 55 mean on 1997 chrysler concorde


DTC 12 - Battery or power line recently disconnected - This code is normal if the electrical system has been worked on or the battery has recently been disconnected. It will be removed after 15 ignition switch on/off cycles.


DTC 21 - Oxygen Sensor
Bad connection or wiring - Check the wiring and connections between the sensor and the logic module (or SMEC). Clean and regrease any corroded connectors with dielectric grease and repair any shorts. Look for melted wire insulation near the exhaust manifold. An open connection will cause this fault code.
Bad oxygen sensor - Replace the sensor which is located on the turbo housing near the down pipe (for turbo) or on the down pipe near the exhaust manifold.

Diagnostic Method - Trigger Parameters
- In closed-loop for 718 seconds (11 minutes, 58 seconds)
- Sensor output stays in the neutral region for more than 21 seconds

Results If Component Fails
A fault code 21 is stored. The circuit stays in closed-loop and the logic module will still monitor the oxygen sensor signal and allow the engine to run rich, but prevent it from running lean.


DTC 55 - No further fault codes are stored.

If this is the only code received, then there are no codes stored in memory. This code will always be given, even if nothing is wrong. If you do not get this code, then you may not be retreiving the codes properly, or the power loss light may be burnt out. The light should come on for 1 second when the ignition is initally turned on as a bulb test.


Really, the main problem that you have there is the O2 sensor, its possible that you need to replace it to solve your problem.

Hope this helps (remember to rating this answer and leave us a testimonial comment).

Oct 13, 2011 | 1997 Chrysler Concorde

1 Answer

Check engine code 55 jeep grand cherokee laredo v6 1997. transmission wont shift properly also pulling code 21 and i figured out that one is for the throtle position sensor


These are the fault codes for your Jeep below;

Jeep
11 IGN reference signal.
13 Fault in the map sensor pneumatic circuit.
14 Fault in the map sensor electrical circuit.
15 Fault in the vehicle speed sensor circuit.
17 Engine running too cool.
21 Problem in the oxygen feedback circuit.
22 Fault in the coolant temperature sensor circuit.
23 Air temperature sensor.
24 Fault in the throttle position sensor circuit.
25 Fault in the IAC motor drive circuit.
27 Fault in injector driver interface circuit.
31 Purge solenoid circuit.
33 Fault in air conditioning cutout relay circuit.
34 S/C solenoid circuits.
35 Fault in fan relay circuit.
41 Fault in the charging system or no field current.
42 Fault in the ASD relay driver circuit.
43 Fault in ignition coil control circuit.
44 Battery Temp Voltage.
46 Battery voltage is too high.
47 Battery voltage is too low.
51 Lean condition is indicated.
52 Rich condition is indicated.
53 Internal problem in module.
54 Fault in the distributor high data rate pickup circuit.
55 Completion of fault code display.
62 Unsuccessful attempt to update EMR mileage.
63 Unsuccessful attempt to write to an EEPROM location by the controller.
76 Fuel pump resistor by-pass relay circuit

Mar 08, 2011 | 1997 Jeep Grand Cherokee

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