Question about 1994 Chevrolet S-10 Blazer
You may have a defective neutral safety start switch, if this vehicle is a standard(stick) shift the switch is mounted on tiop of the clutch pedal above your foot, jump the swith out by unplugging it and installing a jumper wire across the connector, if it starts the switch needs replacement.
If its automatic the neutral switch is sometimes mounted on the base of the shift handle in the console, to test this try starting the vehicle holding the key in the start position(all the way to crank and dont let off) while you giggle the shift handle around from park to neutral, if it starts the switch is defective.
In some instances the switch is an electrical threaded switch screwed into the side of the transmission located near to the shift linkage or screwed directly into the opposite side of the linkage.
Posted on Jun 05, 2010
You might want to see what voltage is getting to the starter motor.
You will need a meter!!!
Check the battery voltage, and then meter ground and the large wire cable at the starter (Attatches at the solenoid) The voltage should be the same. (With the key off)
Now, check the smaller wire at the starter solenoid, as it should have battery voltage only when the key is turned to "start." If you have these, the starter is probably bad. Remove it and get it tested at an auto parts store.
Posted on Jun 05, 2010
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Posted on Jan 02, 2017
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You need to re-check your ignition wiring. Here is the wiring for the alarm.
Battery Constant 12v+ Positive Wire (+): Yellow
Battery Constant 12v+ Positive Wire Location: Ignition Switch Harness
Starter Positive Wire (+): Red/Light Blue
Starter Positive Wire Location: Ignition Switch Harness
Ignition Positive Wire (+): Light Green/Purple
Ignition Positive Wire Location: Ignition Switch Harness
Second Ignition Positive Wire (+): Black/Light Green
Second Ignition Positive Wire Location: Ignition Switch Harness
Accessory Positive Wire (+): Gray/Yellow
Accessory Positive Wire Location: Ignition Switch Harness
Parking Light Positive Wire (+): White/Black Or Brown
Parking Light Positive Wire Location: At Headlight Switch Or Low In Drivers Kick Panel
Power Door Lock Negative Wire (-): Pink/Yellow (Type B)
Power Door Lock Negative Wire Location: In Either Kick Panel
Power Door Unlock Negative Wire (-): Pink/Light Green (Type B)
Power Door Unlock Negative Wire Location: In Either Kick Panel
Door Trigger Positive Wire (+): Black/Light Blue
Door Trigger Positive Wire Location: In Drivers Kick Panel
Domelight Supervision Wire: Use Door Trigger (Requires Relay)
Domelight Supervision Wire Location: N/A
Horn Negative Wire (-): Yellow/Light Green
Horn Negative Wire Location: At Steering Column Harness
Tachometer Wire Negative Wire (-): Any Wire With A Tan Stripe Or A Yellow Stripe
Tachometer Wire Negative Wire Location: At Ignition Coil
Brake Light Positive Wire (+): Light Green
Brake Light Positive Wire Location: At Switch Above Brake Pedal
Factory Alarm Disarm Wire (-): Dark Green/Purple
Factory Alarm Disarm Wire Location: Low In Drivers Kick Panel
Factory Anti-Theft System: N/A
Factory Anti-Theft System Location: N/A
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