No crank & 2 Possible Missing relays
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Amateur
Joined: Jan 2022
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No crank & 2 Possible Missing relays
98 1500 5.9 auto
truck previously slid off iced road found 2 relays on the ground don’t know where they go.
Symptoms: truck won’t crank
Slight damage on driver side;bumper/headlight&corner light/ (have parts)
front driver and rear driver tires blown.(fixed)
knocked shift rod out of adjustment (fixed)
Scanned obd port for codes and it showed only P1899 and I’ve replaced the park/neutral safety switch(fixed)
Abs and brake light showing on dash; brake pedal stiff
truck previously slid off iced road found 2 relays on the ground don’t know where they go.
Symptoms: truck won’t crank
Slight damage on driver side;bumper/headlight&corner light/ (have parts)
front driver and rear driver tires blown.(fixed)
knocked shift rod out of adjustment (fixed)
Scanned obd port for codes and it showed only P1899 and I’ve replaced the park/neutral safety switch(fixed)
Abs and brake light showing on dash; brake pedal stiff
Last edited by Sinexay; Jan 15, 2022 at 04:04 AM.
Administrator
Joined: Apr 2010
Posts: 87,556
Likes: 4,230
From: Clayton MI
Starting circuit is pretty simple. Ignition switch passes current to the relay in the PDC, from there, it goes thru the neutral safety switch, to ground. So, turning the key really only engages the relay. The relay gets power on pin 30, when the relay is activated, it closes the circuit between pin 30, and pin 87. Pin 87 is the wire that actually runs down to the starter solenoid. If the starter relay isn't there, the truck won't start. If the Neutral safety switch is bad, the truck won't start. If the trans isn't in park, or neutral, the truck won't start.
There should be a diagram on the cover of the PDC, which tells you which fuses/relays do what. Make sure it isn't the starter relay that fell out.
Champion
Joined: Sep 2012
Posts: 4,873
Likes: 435
From: Central VA
Given that you had to adjust the shifter rod on that truck due to the accident, might want to try starting the truck in neutral to see if that does it. Try jiggling the shifter slightly before neutral and slightly after neutral while holding the key to 'start' to see if it will allow the starter to turn due to the neutral safety switch being engaged properly.
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Nope.
Starting circuit is pretty simple. Ignition switch passes current to the relay in the PDC, from there, it goes thru the neutral safety switch, to ground. So, turning the key really only engages the relay. The relay gets power on pin 30, when the relay is activated, it closes the circuit between pin 30, and pin 87. Pin 87 is the wire that actually runs down to the starter solenoid. If the starter relay isn't there, the truck won't start. If the Neutral safety switch is bad, the truck won't start. If the trans isn't in park, or neutral, the truck won't start.
There should be a diagram on the cover of the PDC, which tells you which fuses/relays do what. Make sure it isn't the starter relay that fell out.
Starting circuit is pretty simple. Ignition switch passes current to the relay in the PDC, from there, it goes thru the neutral safety switch, to ground. So, turning the key really only engages the relay. The relay gets power on pin 30, when the relay is activated, it closes the circuit between pin 30, and pin 87. Pin 87 is the wire that actually runs down to the starter solenoid. If the starter relay isn't there, the truck won't start. If the Neutral safety switch is bad, the truck won't start. If the trans isn't in park, or neutral, the truck won't start.
There should be a diagram on the cover of the PDC, which tells you which fuses/relays do what. Make sure it isn't the starter relay that fell out.
Thread Starter
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Amateur
Joined: Jan 2022
Posts: 40
Likes: 0
Given that you had to adjust the shifter rod on that truck due to the accident, might want to try starting the truck in neutral to see if that does it. Try jiggling the shifter slightly before neutral and slightly after neutral while holding the key to 'start' to see if it will allow the starter to turn due to the neutral safety switch being engaged properly.
