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The code is for coil number 5 on Jeeps that use direct ignition and no distributor. A 1994 Cherokee uses a distributor. In your case it could mean no signal to the coil from the dist. A mechanic would check for voltage at the coil and signal from the module in the distributor.
You didn't state the year, make, model or engine. So I will guess it is a 4 cylinder car... late 80s or early 90s. If the coil is external ( not under the distributor cap ) You should check for spark from the coil to ground. If there is spark, that would mean there is spark going into the distributor but not coming out. That would indicate a bad distributor cap or rotor. If the coil is under the distributor cap, then you will have to remove the distributor cap. Inspect the underside of the distributor cap, look for burnt terminals, cracks or tracking. Next inspect the rotor, it requires removal of a screw through the side of the rotor into the distributor shaft. You might have to rotate the engine to access the screw. Beyond that there are three sensors and an ignitor in the distributor, some parts stores have the equiptment neccesary to test the ignitor. A new ignitor is around $80. If you have a multimeter, you can check for resistance to the three sensors at the 8 pin plug. The ohm reading should be 350-700 ohms across the blue/green wire and the blue/yellow wire, orange/blue wire and the white/blue wire, the solid orange wire and the solid white wire. None of the sensors are available to buy, so if any of these three sensors are bad, you have buy a distributor.. best of luck.
Your vehicle may be equipped with either of the following ignition systems, depending on the year and engine combination: * 1981-82 1.3L and 1.6L engines: Dura Spark II Ignition System * 1982-85 1.6L Non-EFI and 1986 1.9L Non-EFI engines: Thick Film Ignition I (TFI-I) System * 1983-90 1.6L EFI and 1.9L EFI engines: Thick Film Ignition IV (TFI-IV) System
Disconnect the negative battery cable.
Remove the distributor from the engine.
Place the distributor assembly on a workbench.
Remove the two TFI ignition module retaining screws.
Pull the right side of the module down the distributor mounting
flange and then back up to disengage the module terminals from the
connector in the distributor base. The module may then be pulled toward
the flange and away from the distributor.
Do not attempt to lift the module from the mounting surface, except
as explained in Step 3, as the pins will break at the distributor module
Coat the baseplate of the TFI ignition module uniformly with a
in. (0.8mm) of silicone dielectric compound WA-10 or equivalent.
Position the module on the distributor base mounting flange.
Carefully position the module toward the distributor bowl and engage the
three connector pins securely.
Install the retaining screws. Tighten to 15-35 inch lbs. (1.7-4.0 Nm), starting with the upper right screw.
Install the distributor into the engine. Install the cap and wires.
Reconnect the negative battery cable.
Recheck the initial timing. Adjust the timing, if necessary.
Its easy just take of the distributor cap off without removing the cables. The cap should come off easily with three little screws. Once u have done that place it aside and the distributor has three main bolts they are size 14mm. Once u have done that the distributor should slide out of the engine, just make sure u look at how the angle of the distributor is assembled in the camshaft before putting in the new distributor.
Distributorless Ignition is not adjustable However the Distributor Ignition System is
1 Place Transmission in Park on Manual (Neutral and set Park Brake
2 Ensure all accessories are off AC ,Heater, Radio, ETC...
3Connect an inductive timming light and Tach to the Engine according to manufactures instructions
4 disconnect the single wire inline spout connector or the shorting bar from the double wire spout connector( should be located near hood hinge on fenderwell drivers side small Gray plug with pc of Tape around it ) or near distributor
5 using a pc of yellow chalk laying flat onto the Crankshaft harmonic balancer and marking the entire timing marks area this will make it easier to see the correct timing marks
6 Start engine and bring to normal operating temp.
7 Check Idle speed and adjust if needed this should be non adjustable on your vehicle
8 Check initial timing by aiming the timing light at the marks and pointer.see emissions label under hood for exact timing Specs.
9 if the marks don't line up shut down engine
10 loosen the hold-down bolt on the distributor base but not so much that the distributor turns when assistant restarts the engine
11 restart engine
12 have assistant aim timing light at marks and pointer
13 while holding the distributor Base Shaft with the proper sized wrench at the base or insulated channelocks loosen the hold down bolt and advance or ****** the distributor until the correct timing marks line up.hold in that position while assistant shuts engine off
(NOTE) when retightening the distributor bolt it can have the tendancy to turn the distributor
14 retighten the distributor bolt while holding the shaft firmly to prevent spinning
15have assistant restart engine
16 Verify that the timing marks still line up with pointer if non alignment , readjust using steps 9 thru14 again
17 once it is set correctly and bolt is tight on distributor base shut down engine. Reconnect in-line Spout Connector or reinstall inline spout shorting bar and assure that timing is advancing beyond initial settings by starting the engine and aiming at the timing marks when engine is slightly reved the timing should advance slightly 2-4 degrees maybe more depending on mileage
18 if timing can't be achieved because distriburor was removed you must
1 unhook coil wire
2 remove the #1 Sparkplug verify that the #1 piston is at the top of the compression stroke (must be on top compression stroke) if it isnt have assistant crank engine slightly to get close with coil wire unplugged. DO NOT turn the crankshaft backwards at any time to get piston into position 3 once piston is in position remove the battery cables, remove the distributor cap with wires intact and verify that the rotor cap is at center of the #1 point in the distributor cap if it isn't
4 loosen & remove the distributor bolt
5 lift the distributor only slightly enough to disengage the gear on the shaft from the camshaft gear (NOTE) when letting it back down into the engine it will spin the rotor off of the #1 position so it must be turned far enough to compensate for this turning when it is reinstalled
6 seat the distributor shaft in the hole and reinstall the retainer bolt and tighten then use the steps above to fine tune the timing
Insert each ignition wire on proper terminal of distributor cap . Ensure ignition wires are properly seated on the terminals. The No. 1 terminal is identified on distributor cap .
not sure if #1 cylinder is on the front right or front left. Call a dealer.
Before installing distributor , visually inspect distributor . Inspect the O-ring. It should fit tightly and be free of cuts. The drive gear should be free of nicks, cracks and excessive wear. Rotate distributor drive shaft. It should move freely, without binding.
To install distributor correctly, No. 1 piston (6108) must be at Top Dead Center (TDC) of compression stroke. Remove No. 1 cylinder spark plug (12405) and rotate crankshaft (6303) clockwise until No. 1 piston is on the compression stroke.
With No. 1 piston on compression stroke, align timing pointer with TDC on the crankshaft damper.
Align locating boss on distributor rotor with hole on armature. Fully seat distributor rotor on distributor shaft.
Rotate distributor shaft so blade on distributor rotor is pointing toward mark on distributor base that was previously made in Step 2 of the Removal procedure.
While installing, continue rotating distributor rotor slightly so leading edge of the vane is centered in vane switch stator assembly.
Rotate distributor in engine front cover to align leading edge of vane and vane switch stator assembly. Verify distributor rotor is pointing at No. 1 mark on distributor base.
If vane and vane switch stator cannot be aligned by rotating distributor in engine front cover , remove distributor enough to just disengage distributor gear from camshaft gear. Rotate distributor rotor enough to engage distributor gear on another tooth of camshaft gear. Repeat Step 1 if necessary.
Install distributor hold-down clamp and bolt. Tighten bolt, but leave it loose enough to rotate distributor .
Install distributor cap , No. 1 spark plug and ignition wires. Check that ignition wires are securely connected to the distributor cap and spark plugs . Tighten distributor cap hold-down screws to 2.0-2.6 Nm (18-23 lb-in).
Reconnect distributor to engine control sensor wiring .
Set initial engine ignition timing according to procedures found in Section 8A of the Powertrain Control/Emissions Diagnosis Manual.
After engine ignition timing is set, tighten distributor hold-down bolt on to 20-30 Nm (15-22 lb-ft).
Recheck initial engine ignition timing. Adjust if necessary.