Hi, I have a 99 Camry with the 2.2L. that has a no crank no start and am looking for some guidance. I went out to start it one afternoon after driving it around just 30 minutes prior and it didn't crank or start. All other power is fine (lights, radio etc..) I checked all the fuses and relay's and found the 5amp fuse in the dash was blown so I replaced it. When I tried to restart the car that fuse blew again.

I have checked the battery - it's at 12.6v. Checked the constant power from the battery to the starter, it's at 12.6v at the starter. I also pulled the starter and had it checked at my local AutoZone, no problems with it. I just replaced the ignition switch and the negative battery ground wire since that was a little frayed. I have also just replaced the neutral safety switch and still have the issue.

To note: I replaced the 5amp fuse in the dash, pulled the starter relay, turned the ignition key to on then jumped the starter relay points 3 and 5. The car started right up.

I'm now trying to find out why that 5amp keeps blowing so I don't have to bypass the starter relay. Any help would be appreciated!!

 

Which 5A fuse?

There appears to be two in this box.

One has a 15A both above and below.

One has no fuse above but a 25A below.

 

It's the one with the 25a below it. Note I rechecked the starter wiring, the plug that receives the signal from the fuse box was loose so I cleaned the connector and plug and now the car starts just fine. Multiple starts with no issues.

NOW I'm getting both a P0753 and P0758 code for the 2 transmission solenoids- this.after I put a new NSS in. I made sure that the NSS lines up correctly when the car is in neutral and the plug is in tight. Should I replace both the solenoids or is there something else to look at?

Thanks!

 

NSS = Neutral Safety Switch?

The transmission has 3 electrical controlled solenoid hydraulic valves. One valve is for torque converter lockup and the other 2 are for shifting gear called the No 1 and No 2 solenoids.

The ECU monitors solenoid performance in terms of an open or short in the electrical solenoid part of the valve or wiring for it. It checks for issues when it changes gear position. It does this in something called a trip detection. As in starting engine and driving equals one trip.

The ECM records P0753 or P0758 if Condition A or B is detected once but it does not turn on the check light.

After 1 sec. if the ECU detects Condition A or B in a trip again, it causes turns on the check light.

Condition A = When the solenoid is energized, the solenoid resistance is 8 ohm or less and is counted.

Condition B = When the solenoid is not energized, the solenoid resistance is 100 ohm or more and is counted.

Check the solenoid resistance and wiring.

The wiring to solenoid No 1 is Violet. No 2 is Blue/Black. This wiring comes directly from the ECU.

There is a Fail Safe feature here.

If either of the shift solenoid valve circuits develops an open or short, the ECU turns the other shift solenoid ON and OFF to shift to the gear positions as shown in the table. If both solenoids are malfunction, hydraulic control cannot be performed electronically and must be done manually.

Does the trans shift normally or do you need to shift it manually?

When the transmission is in Neutral as per the cars hand gear shifter ****, does the dashboard trans gear light show Neutral?

 

Thanks for your response! The car does shift manually from 1-2-D. If I start in D the acceleration is very sluggish like it's staring in 2nd gear.

Weird thing is, I drove it to work today and had to manually shift it but 1/2 way home I decided to see what would happen if I left the transmission in D. The car accelerated as normal through the gears as if nothing was wrong. I got home and checked the codes with a Motopower code reader and it came up with just the P0753 code. I cleared that code then turned the key to off, and restarted the car. The transmission then went back to having to shift manually to get 1st gear.

My Camry does not have a dash indicator for PRND21, guess the CE trim didn't come with that?
Where is the ECU located? Would I test it with the key turned to ON for resistance?

Thanks
Mark

 

It would be strange for any model of Camry to not have a dashboard gear shift indicator light setup. Look closely at the dashboard. A link to the owner's manual is below. Read up dash indicator lights.

Check the resistance with the wiring harness plug to the trans trans disconnected. The solenoid negative connection is via the trans housing the solenoid is bolted to.

🥇 1999 TOYOTA CAMRY ➜ Owner's Manual in PDF!

 

I checked again and this model does not have the gear selector lights on the dash. Sorry for the large pictures but there are no visible gear selector lights anywhere on the dashboard. Are you talking about the external solenoid by the neutral safety switch? The other 2 I would have to drop the transmission pan to access the actual solenoids.

 

The two inside the trans. The wiring runs to these solenoids from the ECU. You can disconnect the wiring to the trans and check the resistance based on the wiring colors posted. The ground connection to each solenoid is via the trans body the solenoid is bolted to.