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Wh statesman will not crank, battery good neutral start stop switch replaced ecu will not supply an earth to the starter relay

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Posted on Jan 02, 2017

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SOURCE: Won't crank. Have power to starter. Advance said


Posted on Aug 03, 2009

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SOURCE: 2003 Dodge Caravan 3.3 No Crank, No Start

replace the neutral safty switch

Posted on Aug 28, 2009

  • 3113 Answers

SOURCE: intermittent crank no start. intermittent shut

Check the number on the ECM . If it has the number 1228253 on it that is your problem. They had a cutting off problem while driving. Get one with the number 16198264 on it. The 1228253 is junk and gm replaced them with 16198264.

Posted on Nov 06, 2009

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SOURCE: engine will not crank. The battery is ok, all l...

It could be the neutral start safety switch but move the shift lever up and down and try starting it.If not the cancel the switch and check if still not. could be a security or a bad crank sensor.before replacing check for and dtc avaible. If there r any do quote.

Posted on May 21, 2010

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SOURCE: 89 CRX won't crank or

did you check ignition switch

Posted on Jun 03, 2011

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What am i missing? no power to starter selenoid.

is the immobilizer off ? any other device that stops power to start or run the engine. modifications alarm upgrades etc these can all stop the power to the starter. even ecu being switched off as ecu has a shunt so it can handle the power drain when engine is being started.

Jun 28, 2017 | 2001 Mercury Sable

1 Answer

Where do I find the 2008 Buick Enclave neutral safety switch

It's called a Manual Shift Detent (w/Shaft Position Switch) Lever Assembly. And it's inside the transmission .
What problem are you having ? No crank , when you turn the ignition switch to the start position nothing happens ? No click ,nothing ? If your think of just replacing the switch ,stop , did you have it diagnosed ? This starting system is computer controlled .
When the ignition switch is placed in the Start position, a discrete signal is supplied to the body control module (BCM) notifying it that the ignition is in the Start position. The BCM then sends a message to the engine control module (ECM) notifying it that CRANK has been requested. The ECM verifies that the transmission is in Park or Neutral. If it is, the ECM then supplies 12 volts to the control circuit of the crank relay. When this occurs, battery positive voltage is supplied through the switch side of the crank relay to the S terminal of the starter solenoid.
DTC P0615: Starter Relay Control Circuit
have the vehicle checked .

Jun 20, 2017 | 2008 Buick Enclave

1 Answer

My 2007 Uplander won't start. We've replaced to battery and starter relay. Still won't even click when trying to start.

How to voltage drop test starter motor circuit This is how a normal starting system use to work ! Not now , computer's involved , communication networks etc.....
Here is how your's works

For ignition switch power modes refer to Body Control System Description and Operation . When the ignition switch is placed in the Start position a discrete signal is supplied to the body control module (BCM) notifying it that the ignition is in the Start position. The BCM then sends a message to the engine control module (ECM) notifying it that CRANK has been requested. At the same time the BCM is supplying 12 volts for the IGN 1 relay closing it and supplying battery positive voltage for the crank relay coil. The ECM verifies that the transmission is in Park or Neutral. If it is, the ECM grounds the control circuit of the crank relay. When this occurs battery positive voltage is supplied through the switch side of the crank relay to the S terminal of the starter solenoid.

Sorry but your best bet would be to take it to a qualified repair shop ! Or the Chevy dealer . Could have DTC'S - diagnostic trouble codes stored in the BCM !

DTC P0615 Starter Relay Control Circuit

Circuit/System Verification
Ignition ON, verify that no starter relay, theft deterrent, or automatic transmission DTCs are set that would cause the ECM to disable starting.
? If DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
Ignition ON, observe the scan tool BCM Starter Switch parameter. Place ignition switch in the crank position, the parameter should display ON.
? If not the specified value, refer to Power Mode Mismatch .
Transmission range selector in park , verify the scan tool ECM PNP Switch and TCM IMS parameters display Park/Neutral.
? If the TCM IMS parameter does not indicate Park/Neutral, refer to Transmission Internal Mode Switch Logic .
? If the ECM Park/Neutral parameter does not indicate Park/Neutral, refer to ECM Park Switch Circuit Malfunction.
Transmission range selector in park or neutral, attempt to start the vehicle. The starter relay should click and the engine should begin cranking.
? If the starter relay does not click or the engine does not crank, refer to Starter Relay Circuit Malfunction.

Power to many of this vehicle's circuits are controlled by the module that is designated the Power Mode Master (PMM). This vehicle's PMM is the Body Control Module (BCM). The PMM controls which power mode (Run, Accessory, Crank, Retained Accessory Power, or Off) is active.

Serial Data Power Mode
On vehicles that have several control modules connected by serial data circuits, one module is the power mode master (PMM). On this vehicle, the PMM is the body control module (BCM). The PMM receives 3 discrete ignition switch signals to differentiate which power mode will be sent over the Serial Data circuits. The table below illustrates the state of these inputs in correspondence to the ignition switch position:

Mar 29, 2017 | Cars & Trucks

1 Answer

Why wont my car start gauges and lights come on but wont crank no power going to soelinoid wire

If the security system has been reset ( no light on/flashing ) you may have a neutral safety switch problem, Will the vehicle crank over in neutral? In most cases, the neutral switch grounds the starter relay and allows it to operate. Does the starter relay connector have 2 powers? One constant and one with key on/cranking? If these power supplies are there, suspect the ground side of the relay to be the problem and possible neutral safety switch

Jan 20, 2016 | 2000 Ford Taurus

1 Answer

Stop cranking over changed the battery still nothing. I have narrowed it down to this sensor but cant locate it v-6 engine

What stopped cranking over? Year/make/model?? There is no sensor that controls the vehicles cranking ability other than a neutral safety switch. Will it start in the neutral position? Possible starter/starter relay/wiring/ignition switch/power supply to name a few

Nov 29, 2015 | Cars & Trucks

1 Answer

I changed my starter in my 2007 pontiac g6 it still won't start. I checked the battery and the alternator both good. Help!

Is there a SECRUITY light lit on your instrument cluster ? Did you check the starter relay in the under hood fuse / relay center ?
For ignition switch power modes refer to Body Control System Description and Operation . Once the ignition is placed in the Run/Crank position, the control circuit of the Run/Crank relay is grounded by the body control module (BCM). With the Run/Crank relay switch closed, battery positive voltage flows through it and on to the park/neutral position (PNP) switch. With the PNP switch in either the Park or Neutral position, battery positive voltage will flow to the START relay coil supply voltage input terminal of the engine control module (ECM) and the coil side of the START relay. Placing the ignition in the START position sends a message to the ECM requesting engine start. If the ECM has determined that the transmission is in Park or Neutral and theft is not active, it will supply 12 volts to the control circuit of the START relay. Battery positive voltage will then flow through the switch side of the START relay to the S terminal of the starter solenoid, cranking the engine.
I suggest you take this to someone knowledgeable in new car electronics . There is a lot going on here , modules talking to each other on GMLAN serial data communication network . If no anti-theft system problems The BCM sends a message to the PCM on the GMLAN telling it to energize the run / crank relay ! If you knew vehicle systems you could check for power an control of the start relay right at the relay base / socket !
VEHICLE RELAYS Operation Diagnosis

Jul 24, 2015 | Pontiac Cars & Trucks

1 Answer

Why isn't there a starting signal on a starter relay?

Depends on many things. What make and model? Some starter relays are very simple, and the key to start position supplies voltage to close relay so juice flows to the starter solenoid. Other cars may have juice to the relay run through a neutral safety switch, a clutch depressed switch, or even the ECU requiring certain inputs before cranking is allowed.

Jun 05, 2015 | Cars & Trucks

3 Answers

I have a96 isuzu trooper just had the starter checked and its good but still not doing anything when i stick key in theignition to start could it be the security system

NO CRANK. 96 USA car,(are my answers) check all fuses 1st !
C1 and FL1 and FL3 fuses good?
4wd ? or 2wd. auto or stick shift?
which engine? size? and cyl count....??????? 2.6 or 3.2liters?
wiring varies by engine type, so i guess more....
Does it crank ok with jumper cables (?) to a running donor car?
can be lots of things, gee the IMMO light in the dash is clear.
is it glowing? (the operators guide covers that.)
is this a USA car or Canada? some are different.
got a voltmeter even a $10 walfart meter works perfect.
or do you want to gue$$ and go broke fast. its your cash but/?.......
3.2 v6 shows no IMMO pins on the PCM...... so...?? in 1996

  1. battery dead, or discharges or terminals at 4 ends bad on cables.
  2. Fuses good.?
  3. turn key does CEL lamp glow?(cluster) if not , its not going to start with a dead ECU.
  4. no is the IMMO lamp glowing.
  5. key to start, (crank pos) silent.? now shift to Neutral like the the operators guide shows, cranks now? (a/t trans and no trans stated, so.... i guess away at what is there......
  6. does the starter relay close cranking, if not, work back from that and dont blame the starter, motor. fuse C1 runs this relay. is C1 good. or FL1 or FL2 fuse blows,
  7. ill now show the schematic (wild guessing engine and transmission..!!!)
this is the cranking path, (good starter and battery and cables)
the top of the drawing is the main power 12v feed from FL1 and FL2 fuses. (mains)
then you turn the switch to start
and 12v goes to fuse C1. got that?
then to the a/t box PRNDL switch. and in park or neutral
the 12vcc passes (10 to 12.6) cranking, or more if starter dead.
goes to the starer relay. the relay closes. does it?
if not it will never ever crank the starter.
if you have manual trans, the part in ? below is a clutch switch (pedaL )

the bottom of the coil in starter relay is grounded. full time.
if you have antitheft option the Antitheift module makes up that ground. if happy.
so if the pin 5 on relay is 12vdc(dead relay) then the IMMO is unhappy. good luck fixing that.....

if IMMO not happy,
we then try both keys, lost your spare?

one voltmeter and 15min work , or 10 less if IMMO lamp glows or flashes.
does it?
my post assumes, all things can fail, lacking, good input on dash lamps....

May 09, 2015 | 1996 Isuzu Trooper

3 Answers

My 92 lincoln town car will not start i have replaced the starter, the neutral safety switch and the battery but when i turn key nothing happens but can jump starter and will crank

Yes there is a starter relay in the wiring diagram.
The yellow and lite blue wire goes from the starter solenoid to the relay. There is a yellow wire from the relay to a 30amp fuse. The key switch powers thru the neutral safety switch and then powers the relay on.

Jan 29, 2013 | Lincoln Town Car Cars & Trucks

2 Answers

Will not crank, battery is good, starter is good

Yes, there is a starter relay which is most likely the culprit.

Trace the red battery cable, you'll find the relay at the end of it. Disconnect the starter cable and the battery cable, but not the ignition switch leads, from the relay. Then test for continuity through the switch side of the relay when the ignition is turned to start.

If there is no continuity, the relay is bad.

More info, let me know.


Aug 30, 2009 | 2004 Ford Explorer

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