Question about 1998 Jeep Grand Cherokee

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Let me give more history on the question, replaced 98 Cherokee auto transmission with 2000 tranny. DTC code P0753. DBR says short to ground, no communication from TCM to PCM. Electrical problem occurs before it reaches the solenoids. Transmission automatically shifts from 1st to OD. Will downshift on hard acceleration, but right back to OD as speed increases.

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Code p0753 refers to shift solenoid (SS) A electrical===causes--wiring---shift solenoid---ECM/TCM
I'm thinking that with the transmission upgrade and the fault code showing wiring and TCM as faulty I would be paying serious attention to the configuration of the wires in the plugs. Just because the connectors go together may not mean that the corresponding wires go to the right bits. you may have to invest in a good work shop manual for the gear boxes and trace the wiring circuits out and adjust the pins in the connectors to the right circuits.

Posted on Dec 30, 2013

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P0753, p0758 and p91860 what's my problem and how do I fix it?


Your best bet would be to take your vehicle to a ASE certified professional . You do not have the tools to diagnose this or the information.
DTC P0753
The 1-2 shift solenoid (1-2 SS) valve controls transmission fluid pressure acting on the 1-2 shift valves to position the valves for the appropriate gear. The 1-2 SS valve is a normally-open exhaust valve located on the control valve body. A fused circuit supplies ignition voltage to the 1-2 SS valve. The PCM commands the solenoid ON or OFF by switching the ground path. When the 1-2 SS valve is commanded ON, the PCM senses low voltage. When the 1-2 SS valve is commanded OFF, the PCM senses high voltage. Refer to Shift Solenoid Valve State and Gear Ratio .
If the PCM detects a continuous open, short to ground or short to power in the 1-2 SS valve circuit, then DTC P0753 sets. DTC P0753 is a type B DTC.
DTC P0753 sets when one of the following conditions occurs for 5 seconds:
Condition 1 The PCM commands the solenoid ON and voltage feedback remains high, B+.
Condition 2 The PCM commands the solenoid OFF, and the voltage feedback remains low, 0 volts.
DTC P0758
The 2-3 shift solenoid (2-3 SS) valve controls transmission fluid pressure acting on the 1-2 and 2-3 shift valves to position the valves for the appropriate gear. The 2-3 SS valve is a normally-open exhaust valve located on the control valve body. A fused circuit supplies ignition voltage to the 2-3 SS valve. The PCM commands the solenoid ON or OFF by switching the ground path. When the 2-3 SS valve is commanded ON, the PCM senses low voltage. When the 2-3 SS valve is commanded OFF, the PCM senses high voltage. Refer to Shift Solenoid Valve State and Gear Ratio .
If the PCM detects a continuous open, short to ground or short to power in the 2-3 SS valve circuit, then DTC P0758 sets. DTC P0758 is a type A DTC.
Conditions for Setting the DTC
DTC P0758 sets when one of the following conditions occurs for 5 seconds:
Condition 1 The PCM commands the solenoid ON and the voltage feedback remains high, B+.
Condition 2 The PCM commands the solenoid OFF and the voltage feedback remains low, 0 volts.
What's this p91860 , no such code .

Apr 02, 2016 | 2003 Pontiac Aztek

1 Answer

Why is my 1998 Ford Windstar 98 reading DTC P0743?


#1) Low or dirty transmission fluid #2) Wire/circuit issue shorted to power or ground #3) Failed torque converter clutch (TCC) solenoid #4) Failed TCC assembly in the torque converter.....

Since Transmission has been rebuilt I would strongly suspect the TCC solenoid and/or its wiring...When transmission was rebuilt did the TCC get replaced? If so, due to being intermittent, Check the TCC plug (both female and male) for bent or dirty contacts...also insure you have close to zero ohms of resistance from negative battery post to transmission case...A poor ground will cause a problem and be at times...saailer

Apr 25, 2015 | 1998 Ford Windstar

1 Answer

I have to error code with my jeep grand Cherokee Laredo 1999 the code are 1491,1495,753,136


P1491 Rad Fan Control Relay Circuit An open or shorted condition detected in the radiator fan control relay control circuit. This includes PWM solid state relays.P1495 Leak Detection Pump Solenoid Circuit An open or shorted condition detected in the Leak Detection Pump (LDP) solenoid circuit.P0753 (M) Trans 3-4 Shift Sol/Trans Relay Circuits An open or shorted condition detected in the overdrive solenoid control circuit or Trans Relay Circuit in JTEC RE transmissions. Was MIL code 45. P0753 (M) Trans 3-4 Shift Sol/Trans Relay Circuits An open or shorted condition detected in the transmission 2-4 shift solenoid circuit (4-speed auto. trans. only).P0136 (M) 1/2 O2 Sensor Heater Circuit Malfunction Oxygen sensor heater element malfunction.

Aside from getting into an accident and having your wiring harness severely damaged, the other likely suspect is your PCM. These codes are not related to each other and indicate a much larger problem.

Nov 02, 2013 | 1999 Jeep Grand Cherokee

1 Answer

P0743 p0753 p0748


when diagnosing multiple fault codes it can be tricky figuring out whats going on for instance all three of the codes you have are an electrical nature and not mechanical faults in the transmission most likely they share a common power or ground circuit and have lost one or the other also if they do share any circuit and anyone of these are faulty it would generate the other codes. to do an accurate circuit check you should remove the transmission pan so you can check the terminals at the solenoids and switches on the valvebody because the problem could be in the "passthrough" connector

Dec 10, 2012 | 1999 Jeep Grand Cherokee

1 Answer

Code p0753 for a dodge ram 2500 360 m


Both fault codes refer at Tnasmission problem...

P0743 - Torque Converter Circuit Electrical
This DTC appears when an open or shorted condition is detected in the TCC (Torque Converter Clutch) solenoid control circuit; check this as possible causes:
- fused ignition switch output circuit open
- torque converter clutch solenoid defective
- TCC solenoid circuit w/h intermittent defect
- TCCsolenoid circuit w/h observable defect
- TCC solenoid control circuit open
- TCC solenoid control circuit short to ground
- PCM defective (TCC solenoid control circuit)

You will need remove the cover/pan to inspect the harness that goes to all the solonoids and then to inspect the valvebody and the TCC solonoid itself. If you have a multimeter then you could ohm through the harness and even the solonoid. I have found that most of the time this code was produced because of the solonoid itself. But it could be the circuits to it also. There is abig connector an top of the trans that goes into the trans and the internal harness ispect that connector for any corrosion or damaged pins or wires.


P0753 - Shift Solenoid A Electrical Malfunction
This is a common repair that I have replaced several of the solenoid but it is not a cronic problem. It be the wire going to the solenoid shorted so make sure that is check before the transmission is tilted down and the side cover removed. 90% it is just the solenoid; the solenoid is located in the side pan of the tranmission. It would mean lowering the cradle(what the engine and transmission sit on) and lowering the transmission down about one to two feet. Check this like a possible cause:
- 1-2 shift solenoid control circuit is open or shorted to ground
- 1-2 shift solenoid control circuit is shorted to voltage
- 1-2 shift solenoid has failed
- PCM has failed

You will need to remove the transmission pan and its the solenoid with the red and light green wires going to it. Let us know if you have questions contact us here.

Hope this helps and just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment about this answer. Thank you for using FixYa.

Jose.






Oct 20, 2011 | 1997 Dodge Ram 2500 Club Cab

1 Answer

Put trans in works great but has a code po 0700


P0700 is a generic fault code indicating a transmission problem. It's possible it's a left over code from the bad transmission you replaced. You may need to have the code cleared at a transmission shop that uses a different code reader to clear the code. Unfortunately, unlike the standard OBDII code reader, the transmission codes don't always reset themselves after a repair is made.

Oct 13, 2011 | 2000 Jeep Cherokee

1 Answer

My 2002 gmc wont shift and code p1870 came up it will stay im low gear


You can replace the transmission valve body as per the instruction or install a new TCC apply valve kit. However the installation requires for the valve body to be removed and honed out by a special tool. I wouldn't recommend this procedure unless you have the proper tools and the know how about the inner workings of the automatic transmissions.

#01-07-30-023B: Harsh 1-2 Upshift, SES, MIL, or CEL Illuminated, DTC P1870 Set (Replace Valve Body) - (Mar 22, 2002)
Subject: Harsh 1-2 Upshift, SES, MIL, or CEL Illuminated, DTC P1870 Set (Replace Valve Body)
Models: 1996 Buick Roadmaster
1996 Cadillac Fleetwood
1999-2000 Cadillac Escalade
1996-2000 Chevrolet Camaro, Corvette
1996-2000 Pontiac Firebird
1996-2000 Chevrolet and GMC Light Duty Truck Models
1996-2000 Oldsmobile Bravada
with 4L60-E Automatic Transmission (RPO M30)
Built Prior to January 15, 2000 (Julian Date 0015)

This bulletin is being revised to update VIN Breakpoint Date information and revise the Parts Information table. Please discard Corporate Bulletin Number 01-07-30-023A (Section 07 -- Transmission/Transaxle).

Condition: Some customers may comment on a harsh 1-2 upshift and the Check Engine Light or Service Engine Soon indicator is illuminated.

Diagnosis: Typically, these vehicles will have been driven more than 32,000 km (20,000 mi) before this condition occurs.

The scan tool may show a DTC P1870 set as a history code.

A harsh 1-2 shift or DTC P1870, caused by wear in the control valve body, may be difficult to duplicate when the transmission temperature is below 93°C (200°F).

Cause: The condition may be due to wear in the control valve body. This wear occurs in the bore that contains the TCC isolator and regulator valves, and results in poor, or no, TCC apply.

Important:
• DTC P1870 is a type B code. The conditions for setting the P1870 DTC must occur on TWO CONSECUTIVE TRIPS (ignition cycles, with a drive cycle) before setting a P1870 history code.
• When the conditions for setting DTC P1870 are met (first trip), the PCM commands maximum line pressure and harsh 1-2 shifts are the result.
• This may result in a harsh 1-2 shift with no history code if the conditions for setting the DTC required for the second trip are not met, on two consecutive trips (Ignition cycles, with a drive cycle).
• When the conditions for setting the DTC are met, on the second consecutive trip, a DTC P1870 is stored as a history code.
• When the P1870 code is stored, the PCM will turn on the Service Engine Soon (SES), Check Engine Light (CEL), or Malfunction Indicator Lamp (MIL).

Correction: Install a control valve body with the revised TCC regulator and isolator valves. Refer to the Parts Information table below. These valves are used in all transmissions produced after January 15, 2000 (Julian Date 0015), and all of the service parts currently available through GMSPO contain revised TCC regulator and isolator valves.

Important: If all of the following conditions are true, it is not necessary to rebuild the transmission or to replace additional transmission components beyond the control valve body.
• Transmission operation is normal before the transmission reaches operating temperature, or before DTC P1870 is set (no slips, flares, or missing gears).
• The torque converter is not blue or overheated.
• The transmission fluid is not burned or has no burned odor.
• The transmission fluid pan contains no abnormal debris (clutch material, bronze, brass, or metal fragments).

Keep us updated.

Oct 06, 2011 | Cars & Trucks

1 Answer

Code p 1870 came up and truck wont shift


You can replace the transmission valve body as per the instruction or install a new TCC apply valve kit. However the installation requires for the valve body to be removed and honed out by a special tool. I wouldn't recommend this procedure unless you have the proper tools and the know how about the inner workings of the automatic transmissions.

#01-07-30-023B: Harsh 1-2 Upshift, SES, MIL, or CEL Illuminated, DTC P1870 Set (Replace Valve Body) - (Mar 22, 2002)
Subject: Harsh 1-2 Upshift, SES, MIL, or CEL Illuminated, DTC P1870 Set (Replace Valve Body)
Models: 1996 Buick Roadmaster
1996 Cadillac Fleetwood
1999-2000 Cadillac Escalade
1996-2000 Chevrolet Camaro, Corvette
1996-2000 Pontiac Firebird
1996-2000 Chevrolet and GMC Light Duty Truck Models
1996-2000 Oldsmobile Bravada
with 4L60-E Automatic Transmission (RPO M30)
Built Prior to January 15, 2000 (Julian Date 0015)

This bulletin is being revised to update VIN Breakpoint Date information and revise the Parts Information table. Please discard Corporate Bulletin Number 01-07-30-023A (Section 07 -- Transmission/Transaxle).

Condition: Some customers may comment on a harsh 1-2 upshift and the Check Engine Light or Service Engine Soon indicator is illuminated.

Diagnosis: Typically, these vehicles will have been driven more than 32,000 km (20,000 mi) before this condition occurs.

The scan tool may show a DTC P1870 set as a history code.

A harsh 1-2 shift or DTC P1870, caused by wear in the control valve body, may be difficult to duplicate when the transmission temperature is below 93°C (200°F).

Cause: The condition may be due to wear in the control valve body. This wear occurs in the bore that contains the TCC isolator and regulator valves, and results in poor, or no, TCC apply.

Important:
• DTC P1870 is a type B code. The conditions for setting the P1870 DTC must occur on TWO CONSECUTIVE TRIPS (ignition cycles, with a drive cycle) before setting a P1870 history code.
• When the conditions for setting DTC P1870 are met (first trip), the PCM commands maximum line pressure and harsh 1-2 shifts are the result.
• This may result in a harsh 1-2 shift with no history code if the conditions for setting the DTC required for the second trip are not met, on two consecutive trips (Ignition cycles, with a drive cycle).
• When the conditions for setting the DTC are met, on the second consecutive trip, a DTC P1870 is stored as a history code.
• When the P1870 code is stored, the PCM will turn on the Service Engine Soon (SES), Check Engine Light (CEL), or Malfunction Indicator Lamp (MIL).

Correction: Install a control valve body with the revised TCC regulator and isolator valves. Refer to the Parts Information table below. These valves are used in all transmissions produced after January 15, 2000 (Julian Date 0015), and all of the service parts currently available through GMSPO contain revised TCC regulator and isolator valves.

Important: If all of the following conditions are true, it is not necessary to rebuild the transmission or to replace additional transmission components beyond the control valve body.
• Transmission operation is normal before the transmission reaches operating temperature, or before DTC P1870 is set (no slips, flares, or missing gears).
• The torque converter is not blue or overheated.
• The transmission fluid is not burned or has no burned odor.
• The transmission fluid pan contains no abnormal debris (clutch material, bronze, brass, or metal fragments).

Keep us updated.

Oct 06, 2011 | Cars & Trucks

4 Answers

My service engine light is on got it checked it has a p0706 code which is the Transmission Range Sensor Circuit Range/Performance?where do i find the part?


DTC P0708 - Transmission Range Sensor Circuit High Input

Check your transmission range sensor.
There is a connector located where the cable attaches to the tranny on the back (firewall side). Be sure its connected and seated properly.

From what I understand the "range sensor" is basically the Input Turbine Speed Sensor. Be sure the connector for this is also clean. This code is also set by the Nuetral Safety switch. Check the switch with a multi meter to be sure its working properly.

Also, check your Engine Coolant Temperature Sensor. This sensor is used by the PCM to help control tranny operations.

Also, can check this additional information for
1998 Saturn SL1...

DTC P0706
The PCM determines which gear is selected by a combination of opens and grounds in circuits 771, 772, and 773 at the transaxle park/neutral
position switch. Each combination indicates a specific selection on the
manual shift quadrant, P, R, N, D, 2, or 3. Circuit 776 is either open
or grounded to produce an even number of grounded circuits, 771, 772,
773, and 776. Invalid data indicates that the sum of the grounded
circuits 771, 772, 773, and 776, in 1 of the manual shift quadrants is
equal to an odd number.

Conditions for Setting the DTC
DTC P0706 is set when the PCM has detected an invalid bit pattern for
more than 3.5 seconds, twice per ignition cycle.

The difference between DTC P0706 and DTC P0705 is that a possible bit pattern error due to misadjustment could set a DTC P0706.

Test Description
1. This step verifies the conditions for DTC P0706 still exist.
2. If the shift cable or switch is misadjusted, a DTC P0706 may set
while in certain gear shift positions.
3. DTC P0706 may set due to 1 or more circuits being shorted to
ground. By disconnecting the switch, the PCM should read all circuits as high and the scan tool should display OPEN.
4. This step will isolate an open circuit. As each individual circuit
is grounded, the PCM/TCM should see the low signal and the tool should display INVALID.
5. The PCM/TCM supplies a 12 volt signal to each transaxle park/neutral position switch circuit. This step tests for that voltage.
6. DTC P0706 may have been set due to 1 of the circuits being shorted
to voltage. This step verifies if a short to voltage exists.

Repair Verification
Monitor DTC menu Code Status for Pass Since Code Clear and Pass This Ignition Cycle. When both have passed, the repair is verified.

Criteria for pass:
* No active DTC set.
* Two valid selector positions are decoded. You must move the
shifter to obtain a pass.

Diagnostic Aids
When the PCM detects a fault in the circuit, an open, ground, or short,
the PCM will open the circuit internally to protect the circuit.

If no circuit problems can be detected, check the shift cable and switch
adjustment.

Important
Refer to the chart from DTC P0705.

This DTC will cause the transaxle to start out in 2nd gear.

Hope helps (remember rated this).

Jun 18, 2010 | 1997 Saturn SL

3 Answers

P1870 code what does it mean


This GM service bulliten might apply to your vehicle:

TSB # 01-07-30-023A
Harsh 1-2 Upshift, SES, MIL, or CEL Illuminated, DTC P1870 Set (Replace Valve Body)
1996 Buick Roadmaster
1996 Cadillac Fleetwood
1996-2000 S10 Blazer
1999-2000 Cadillac Escalade
1996-2000 Chevrolet Camaro, Corvette
1996-2000 Pontiac Firebird
1996-2000 Chevrolet and GMC Light Duty Truck Models
1996-2000 Oldsmobile Bravada
with 4L60-E Automatic Transmission (RPO M30)
Built Prior to January 15, 1999 (Julian Date 9015)
This bulletin is being revised to update the Parts Information

Please discard Corporate Bulletin Number 01-07-30-023 (Section 07 -- Transmission/Transaxle).
Condition
Some customers may comment on a harsh 1-2 upshift and the Check Engine Light or Service Engine Soon indicator is illuminated.
Diagnosis
Typically, these vehicles will have been driven more than 32,000 km (20,000 mi) before this condition occurs.
The scan tool may show a DTC P1870 set as a history code.
A harsh 1-2 shift or DTC P1870, caused by wear in the control valve body, may be difficult to duplicate when the transmission temperature is below 93°C (200°F).
Cause
The condition may be due to wear in the control valve body. This wear occurs in the bore that contains the TCC isolator and regulator valves, and results in poor, or no, TCC apply

Important
DTC P1870 is a type B code. The conditions for setting the P1870 DTC must occur on TWO CONSECUTIVE TRIPS (ignition cycles, with a drive cycle) before setting a P1870 history code.
When the conditions for setting DTC P1870 are met (first trip), the PCM commands maximum line pressure and harsh 1-2 shifts are the result.
This may result in a harsh 1-2 shift with no history code if the conditions for setting the DTC required for the second trip are not met, on two consecutive trips (Ignition cycles, with a drive cycle).

When the conditions for setting the DTC are met, on the second consecutive trip, a DTC P1870 is stored as a history code.
When the P1870 code is stored, the PCM will turn on the Service Engine Soon (SES), Check Engine Light (CEL), or Malfunction Indicator Lamp (MIL).
Correction
Install a control valve body with the revised TCC regulator and isolator valves. These valves are used in all transmissions produced after January 15, 1999 (Julian Date 9015), and all of the service parts currently available through GMSPO contain revised TCC regulator and isolator valves.

Important
If all of the following conditions are true, it is not necessary to rebuild the transmission or to replace additional transmission components beyond the control valve body.

Transmission operation is normal before the transmission reaches operating temperature, or before DTC P1870 is set (no slips, flares, or missing gears).
The torque converter is not blue or overheated.
The transmission fluid is not burned or has no burned odor.
The transmission fluid pan contains no abnormal debris (clutch material, bronze, brass, or metal fragments

Jun 18, 2010 | 1998 GMC Jimmy

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