1996 Other Chevrolet Models Starter solenoid gets no signal.

Engine Does Not Crank, Starter Solenoid Does Not Click:

Place gear selector in Park. Turn ignition switch to START position and observe SECURITY indicator on instrument cluster. SECURITY indicator should illuminate for 5 seconds, then go out.

If SECURITY indicator does not remain illuminated or does not flash continuously, go to next step. If SECURITY indicator remains illuminated or flashes continuously, problem exists within anti-theft system. See ANTI-THEFT SYSTEM article in ACCESSORIES & EQUIPMENT.

Load test battery. Replace battery if it fails load test. Check battery cables and battery cable connections. If battery cables and connections are okay, go to next step. If battery cables and connections are faulty, repair or replace battery cables and connections as necessary.

Remove 10-amp fuse No. 7, located in relay center behind right side of dash, to prevent engine from starting. Turn ignition switch to START position. Using DVOM, measure voltage between starter solenoid terminal "S" (Purple wire) and ground. See Fig. 2. See WIRING DIAGRAM. If voltage is 8 volts or greater, check starter solenoid terminal "S" for poor connection. Also, check for dirty or poor ground between starter and engine block. If connection and ground are okay, repair or replace starter. If voltage is less than 8 volts, go to next step.

Turn ignition switch to START position. Locate Black 66-pin C101 connector in right rear of engine compartment near A/C accumulator. Using DVOM, backprobe Black 66-pin C101 connector terminal F1 (Purple wire). Disconnect Purple wire from starter solenoid terminal "S". Measure voltage from female side of Black 66-pin C101 connector terminal F1 (Purple wire) and ground. If voltage is less than 8 volts, go to next step. If voltage is 8 volts or greater, check Black 66-pin C101 connector terminals for poor connections. Also, check for open circuit in Purple wire between starter solenoid terminal "S" and starter enable relay. If connections and Purple wire are okay, replace starter solenoid.
Reconnect Purple wire to starter solenoid terminal "S". Disconnect park/neutral position switch connector C1 located at left rear of engine, on transaxle. Connect test light between park/neutral position switch connector C1 terminal "G" (Yellow wire) and ground. Turn ignition switch to START position. If test light does not illuminate, go to next step. If test light illuminates, check anti-theft system for proper operation. Also, check for open circuit in Yellow/Black wire between park/neutral position switch and Pass-Key II decoder module, and park/neutral position switch connector terminals for poor contact or damage. Repair as necessary.
Reconnect park/neutral position switch connector C1. Remove 10-amp AIRBAG/VATS fuse located in instrument panel fuse block. Connect test light between 10-amp AIRBAG/VATS fuse connector terminal B1 (Yellow wire) and ground. Turn ignition switch to START position. If test light does not illuminate, go to next step. If test light illuminates, check for open circuit in Purple wire between AIRBAG/VATS fuse and starter enable relay, and in Yellow wire between starter enable relay and park/neutral position switch. Also, check for open circuit or high resistance between starter enable relay terminals C1 (Yellow wire) and A2 (Purple wire).
Locate Natural 48-pin C202 connector behind dash, at base of steering column. Using DVOM, backprobe Natural 48-pin C202 connector terminal D5 (Red wire). Measure voltage between Natural 48-pin C202 connector terminal D5 (Red wire) and ground. If voltage is 8 volts or greater, go to next step. If voltage is less than 8 volts, check for open circuit or short to ground in Red wire between ignition switch and battery booster positive cable. If necessary, replace 60-amp IGN SW fuse, located in right maxi fuse block in right rear side of engine compartment, on firewall.

Turn ignition switch to START position and hold. Using DVOM, backprobe Natural 48-pin C202 connector terminal B6 (Yellow wire). Measure voltage between Natural 48-pin C202 connector terminal B6 (Yellow wire) and ground. If voltage is less than 8 volts, go to next step. If voltage is 8 volts or greater, check for open circuit in Yellow wire between ignition switch, 10-amp AIRBAG/VATS fuse and starter enable relay, and in Purple wire between starter enable relay and starter solenoid terminal "S". Also, check starter enable relay. Repair or replace as necessary.

Check Natural 48-pin C202 connector for poor terminal contact. Check for open circuit or short to ground in Yellow wire between ignition switch, 10-amp AIRBAG/VATS fuse and starter enable relay. Check ignition switch for damage. Check for open circuit in Red wire between ignition switch and battery booster positive cable. Also, check for open circuit in steering column wiring harness. Repair or replace as necessary.

There is a security light reset procedure, look in owners manual, if you can't find it, repost and I will search for it.

I found the procedure:

GM PASS LOCK RELEARN- Ignition to "run" position, try to start and let key return to "run" position
Approx ten minutes security light will go off
Turn key "off" and wait 5 seconds
Repeat 2 more times for a total of 3 relearns.
Turn key off, then start it.

You may have to do it 3 times?

Perform PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK.

Using Interrogator (J 35628-A), check key to ensure valid key code is read. If key code is valid, go to step 2. If key code is not valid, clean key and retest in interrogator. If a valid key code is now read, repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK. If a valid key code is not read, replace key. Repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK.

(2) Disconnect PASS-Key II(R) 48-pin connector at base of steering column. Connect interrogator to ignition lock side of 48-pin connector terminals E13 (Purple/White wire) and E12 (White/Black wire). Rotate lock cylinder through all positions while observing key code display (repeat 10 times). If display reads "E" for error or changes to another key code value at any position, replace ignition lock and keys. Repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK.

If display does not read "E" for error and does not change to another key code value, turn ignition off and disconnect interrogator. Using ohmmeter, measure resistance between ignition lock side of 48-pin connector terminals E13 (Purple/White wire) and E12 (White/Black wire), and ground.

If either resistance is 10 ohms or less, replace ignition lock and keys. Repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK. If resistance is more than 10 ohms, reconnect 48-pin connector at base of steering column. Using ohmmeter, measure resistance across key pellet and note reading. Insert key into ignition lock. Disconnect PASS-Key II(R) decoder module connector.
Using ohmmeter, measure resistance between PASS-Key II(R) decoder module connector terminals B7 (Purple/White wire) and B8 (White/Black wire). If resistance readings are not within 10 ohms of each other, check for poor connections at 48-pin connector at base of steering column. Also, repair damage to Purple/White wire or White/Black wire between PASS-Key II(R) decoder module and 48-pin connector as necessary. Repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK.
If resistance readings are within 10 ohms of each other, insert key into ignition lock leaving in OFF position. Using ohmmeter, measure resistance between PASS-Key II(R) decoder module connector terminals B7 (Purple/White wire) and B8 (White/Black wire), and ground. If resistance is more than 5 ohms, go to next step. If resistance is 5 ohms or less, repair short to ground in Purple/White wire or Black/White wire between PASS-Key II(R) decoder module and 48-pin connector. Repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK.
Check PASS-Key II(R) decoder module grounds (Black/White wires). If Black/White wires are okay, reconnect PASS-Key II(R) decoder module connector. Try to start engine. If engine does not start, go to next step. If engine starts, check for poor connections at PASS-Key II(R) decoder module and 48-pin connector. Repair as necessary. If an intermittent problem is suspected, see NOTES ON INTERMITTENTS.
Turn ignition on and observe SECURITY indicator. If SECURITY indicator does not go out after 3 minutes, replace PASS-Key II(R) decoder module. Repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK. If SECURITY indicator goes out, attempt to start engine using a spare key. If engine starts, replace suspect key. Repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK. If engine does not start, replace PASS-Key II(R) decoder module. Repeat PASS-KEY II(R) DIAGNOSTIC SYSTEM CHECK.

The pass key module is suspect, the dealer or trusted garage will have to check pass key module.

Since the security light continues to flash, a component of the pass key system is suspect.

System components include ignition key, ignition key lock cylinder, PASS-Key II(R) decoder module, starter enable relay and Powertrain Control Module (PCM).