zumer715

So I just recently converted a 2000 2wd to 4x4 and it runs and drives nice and smooth but I had a CEL on so I took it to auto zone and it threw out 5 codes...

-Transaxle range switch fault
-Throttle position sensor
-Torque converter clutch circuit condition
-Torque converter clutch solenoid circuit
shift solenoid relay condition

And when I'm driving it doesn't feel like anything is wrong so I was just wondering if you guys have any idea what's going on... Thanks!

CCKen

Need the actual code numbers. Canned descriptions can be misleading. "Transaxle" range switch fault for example. THe AW4 is not a Transaxle.

zumer715

Yea I thought that transaxle code was kinda weird to I think the autozone guy just screwed up typing the code in but anyways the codes were

-P0743
-P0753
-P0740
-P0122
-P0705

CCKen

Have you tried clearing the codes and see if they come back.

Disconnect the battery negative post connector for about 5 minutes then reconnect. See if CEL goes out. If the CEL returns immediately have the codes reread and see which ones have come back.

If your Heep drives okay and shifts okay those codes may just be from dicking with the transmission harness during the swap.

zumer715

Ok I tried disconnecting the battery for 5 mins and reconnected it and the light was on as soon as I started the car but yea everything feels smooth and there's no grinding sounds or slipping or anything

CCKen

Sometimes it takes a scanner to clear the codes.

Too bad you can't find out what the code(s) are now.

The TPS has alot of influence on the TCM. Your P0122 code could be the key. Perhaps if you could resolve P0122 the other transmission codes will go away.

Here's what the Diagnostics Manual says:

P0122-THROTTLE POSITION SENSOR VOLTAGE LOW

Possible Causes

THROTTLE POSITION SENSOR SWEEP
INTERMITTENT CONDITION
5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
5 VOLT SUPPLY CIRCUIT OPEN
THROTTLE POSITION SENSOR INTERNAL FAILURE
THROTTLE POSITION SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
THROTTLE POSITION SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT
TCM INTERNALLY SHORTED THROTTLE POSITION SIGNAL CIRCUIT
PCM 5 VOLT SUPPLY CIRCUIT
PCM THROTTLE POSITION SENSOR SIGNAL

You should at least check the 5 volt supply voltage voltage input to the TPS. Detach the connector from the TPS. Turn the ignition switch to RUN/ON. Using a digital voltmeter, read from the connector pin cavity with the Orange wire, using the engine as a ground for the meter. You should see 5 +/- .5 volts.

If you don't see this voltage, wiggle the wire harness.

If you do see the 5 +/- .5 volts, the TPS could be faulty.

zumer715

Ok I'll give that a try tomorrow, thanks for all the help