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Fault code p1637

No park brake no crooze control no speedometer engine redlight on

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  • Cars & Trucks Master
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I like the spelling of "crooze, I assume you mean cruise?

Posted on Aug 15, 2019


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Posted on Jan 02, 2017

  • 44 Answers

SOURCE: XJR 2004 showing warning on dash engine fault,

That's 3 different ECU's. So look for a common fault. Have you had reason to jump start it before this happened? If the leads were inadvertently put on the wrong way round, this could cause permanent damage to the ECU's. If not, then I would go for an earthing fault. The engine ECU is under the passenger's footwell, trace the black cables to the earthing point, I know the earthing point for the ABS unit is right next to it on top of the chassis rail. Failing any of this, I would then get the fault codes pulled at least for the engine ECU and see what it has to say.

Posted on Jul 31, 2009

  • 5158 Answers

SOURCE: engine system fault,park brake fault

4 recalls so far.

unhook the battery for about 15 minutes, that will reset the computer. if you have an anti-theft radio. make sure you know the code first.

Posted on Sep 04, 2009

  • 1 Answer

SOURCE: Engine system fault,park brake faultengine system

how do i fix or reset this fault
Engine system fault,park brake faultengine system fault, park brake fault & dsc not avilable

Posted on Sep 27, 2009

  • 173 Answers

SOURCE: 2002 Chev. C1500HD pickup 6.0 engine has code

the generator / alternator has sensed an improper voltage at the L terminal circut for more than 30 seconds, check terminals for corrosion and or connection.. with the engine running there should be roughly 5 volts at the connector term L and ground, good luck

Posted on Nov 24, 2009

  • 1140 Answers

SOURCE: I have a 2007 Ram

scan for codes first. sounds like a shorting wire. has vehicle been lifted?

Posted on May 18, 2011

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On a bmw 2000 540i im only getting 2500 rpm out of motor with full throttle n a code of p1637 p0100 where do i start checking please advise me as what this relates to.

code p 0100 refers to mass air flow (MAF) sensor /volume air flow (VAF) sensor--circuit malfunction=== causes --wiring ---MAF/VAF sensor ---ECM
code p1637 refers to throttle valve position control---control deviation===causes---wiring ---
Throttle valve position control unit
take it to an accredited service shop with experience on your vehicle and discuss which would be the most likely unit to be faulty or replace the lot if you have cash to splash

Feb 22, 2017 | BMW Cars & Trucks

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What are some signs that a speed sensori s bad on a 2003 frontier nissan

fault code is p0500
loss of anti-lock brakes the "anti-lock" or "brake" warning lamps on the dash may be lit the speedometer or odometer may not work properly (or at all) your vehicle's RPM limiter may be decreased the shifting of an automatic transmission may become erratic other symptoms may also be present

Read more at:

if the engine check light is on
the engine computer has fault codes to be read

this is the speed sensor on a 2003 nissan frontier



Oct 14, 2016 | 2003 Nissan Frontier Crew Cab

1 Answer

I have this errors code to this car.p1637,p1638,p1699 and p1260.i change the batery and check all conectors .any ideea please?

What make , model an year vehicle ?
Generator L Terminal P1637? / Possible alternator problem The powertrain control module (PCM) uses the generator turn on signal circuit to control the load of the generator on the engine. A high side driver in the PCM applies a voltage to the voltage regulator. This signals the voltage regulator to turn the field circuit ON and OFF. When the PCM turns ON the high side driver, the voltage regulator turns ON the field circuit. When the PCM turns OFF the high side driver, the voltage regulator turns OFF the field circuit. Strongly suggest you take your vehicle to a ASE certified repair shop or the dealer .

Mar 15, 2016 | Cars & Trucks

1 Answer

1998 dodge ram 2500, speedometer does not work

Have the system scanned for fault codes, I think you may have a defective VSS (vehicle speed sensor), but don't replace it before you have the fault code test run, a defective computer and or wiring to the VSS can also cause the same problems.

Jan 23, 2012 | 1998 Dodge Ram 2500 2WD

1 Answer

Transmission is stuck in Park... my 2007 X type Jaguar stood quietly for two months while i was away. Now it wont move into gear from Park Engine starts no problem all indicators show no problem, yet gear...


Feb 03, 2011 | 2007 Jaguar X-Type 3.0 Sedan

1 Answer

1996 chevy 1500 speedometer drops when I travel at certain speeds and the rpms shoot up and truck starts hesitating, if i keep on trying to accelerate. also my (ABS) light stay on now since this started

Sounds like your vehicle speed sensor is bad. The VSS gives your electronic engine control information necessary to control your transmission and ABS for the rear brakes as well as your speedometer. You should have a fault code but I would try that if I was you. Just my 2 cents worth. Hope that helps

Aug 31, 2010 | 1996 Chevrolet K1500

4 Answers

Parking Brake Fault light is coming on? I reset the battery and it keeps coming on. It starts with the "apply parking brake" light and then when you take off, it goes to a parking brake fault? Please...

This is a common fault often caused by low battery voltage, before you start taking expensive actions with the park brake modules etc get your battery checked for 100% efficiency.
Hope this helps, good luck.

May 26, 2010 | 2003 Jaguar S-Type

2 Answers

Engine system fault,park brake faultengine system fault, park brake fault & dsc not avilable lights were flashing which caused the car to completly loose power.

how do i fix or reset this fault
Engine system fault,park brake faultengine system fault, park brake fault & dsc not avilable

Sep 09, 2009 | 2003 Jaguar S-Type

1 Answer


Any code's stored in the ABS ? The VSS - vehicle speed sensor is an input to the PCM - engine computer . The PCM sends this info. on the class 2 serial data network to the instrument cluster . The Instrument cluster has a microprocessor that deciphers all relevant data , speedometer , tach , fuel level , temp. etc... an through the use of stepper motors controls the gauges . Do you know what a module serial data network is ? Do you know what computer controlled systems on a automobile are ? The ABS - anti lock brakes need speed info. also , as does the transmission for shifting point's . The parking brake light is more then just to let you know the parking brake is set . ABS problems , low fluid level in the master cylinder will also turn on this light . Having the vehicle hooked up to a professional type scanner should be the first step in the diagnostic process . Check DTC'S , view sensor data parameters .

Engine Coolant Temperature Gage
The IPC displays the engine coolant temperature as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the engine coolant temperature. The engine coolant temperature gage defaults to 100°F (40°C) or below if:
• The PCM detects a malfunction in the engine coolant temperature sensor circuit.
• The IPC detects a loss of class 2 communications with the PCM.

PRNDL Display
The IPC displays the selected gear position as determined by the PCM. The IPC receives a class 2 message from the PCM indicating the gear position. The PRNDL displays blank if:
• The PCM detects a malfunction in the transmission range switch circuit.
• The IPC receives a class 2 message indicating the park position and the column park switch indicates a position other than park such as an open input.
• The IPC detects a loss of class 2 communications with the PCM.
The IPC displays the vehicle speed based on the information from the PCM. The PCM converts the data from the vehicle speed sensor to a 4000 pulses/mile signal. The IPC uses the vehicle speed signal circuit from the PCM in order to calculate the vehicle speed. The speedometer defaults to 0 km/h (0 mph) if a malfunction in the vehicle speed signal circuit exists.

The IPC displays the engine speed based on the information from the PCM. The PCM converts the data from the engine speed sensor to a 2 pulses/engine revolution signal. The IPC uses the engine speed signal circuit from the PCM in order to calculate the engine speed. The tachometer defaults to 0 rpm if a malfunction in the engine speed signal circuit exists.

You could have any one of a number of different thing's causing your problem . Hooking up a scanner probably would point to the gremlin .

012 GM Class II Communications

Jan 15, 2018 | 2003 Chevrolet TrailBlazer

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