I have an 02 911 Carerra 2. I need to know which pins are hot on the main harness connectors

PART COLOR LOCATION 12 VOLT CONSTANT RED (+) @ IGNITION SWITCH HARNESS STARTER YELLOW (+) @ IGNITION SWITCH HARNESS STARTER 2 N/A IGNITION 1 PINK (+) @ IGNITION SWITCH HARNESS IGNITION 2 WHITE (+), See NOTE #6 @ IGNITION SWITCH HARNESS IGNITION 3 N/A ACCESSORY/HEATER BLOWER 1 ORANGE (+) @ IGNITION SWITCH HARNESS ACCESSORY/HEATER BLOWER 2 N/A KEYSENSE LIGHT GREEN (-) @ IGNITION SWITCH HARNESS PARKING LIGHTS ( - ) WHITE (-) @ BCM, LIGHT BLUE plug, Pin A5, See NOTE #4 PARKING LIGHTS ( + ) BROWN (+) @ BCM, LIGHT BLUE Plug, Pin B6, See NOTE #4 POWER LOCK LIGHT BLUE (TYPE A) @ BCM, BROWN plug, Pin A4, See NOTE #4 POWER UNLOCK WHITE (TYPE A) @ BCM, BROWN Plug, Pin A3, See NOTE #4 DOOR TRIGGER See NOTE #2 @ BCM, See NOTE #4 DOMELIGHT SUPERVISION TAN (-) @ BCM, PURPLE Plug, Pin B4, See NOTE #4 TRUNK RELEASE N/A SLIDING POWER DOOR N/A HORN BLACK (-) @ STEERING COLUMN HARNESS TACH WHITE (AC) @ ECM, See NOTE *2 WAIT TO START LIGHT DARK BLUE (-), See NOTE #5 @ INSTRUMENT CLUSTER BRAKE WHITE (+) @ SWITCH ABOVE BRAKE PEDAL FACTORY ALARM DISARM LIGHT GREEN (-) @ BCM, PURPLE plug, Pin B3, See NOTE #4 ANTI-THEFT YELLOW (+), ORANGE/BLACK (-) and RED/WHITE (Not used) GM's PASSLOCK 2 System, these wires exit the Ignition Switch Tumbler together and are in the Main Ignition Switch Harness in the Column. EXTRA INFORMATION NOTE #1: This vehicle is equipped with the PASSLOCK 2 ANTI-THEFT SYSTEM and will require a 791 Bypass Module for Remote Starting, to order go to the SECURITY BYPASS MODULE Page on this website. NOTE #2: This vehicle has 2 door trigger wires, the DRIVERS DOOR is a TAN (-) PURPLE plug, B4 and ALL OTHER doors BLUE/WHITE (-) LIGHT BLUE plug, Pin B11 at the BCM use both Door Trigger wires and DIODE ISOLATE when connecting to an ALARM SYSTEM, to connect, See DIAGRAM. NOTE #3; The ECM (Engine Control Module) is located near the battery, down low, between the fender and the fan, under a BLACK plastic cover. On the 4.3L engine it is in a 20 pin connector labled RED. On the 4.8L, 5.3L and 6.0L engines it is located at Pin 10 in the RED connector NOTE #4: The BCM (Body Control Module) is located behind the drivers side of dash, with the plugs facing the rear of the vehicle. NOTE #5: when hooking up a remote starter, if you cannot get the (+) or (-) Wait to Start wire on the Remote Starter to work properly, you will then need to disconnect this wire and Program the Remote Starter for the 5, 10, 15 or 20 Second Wait to Start Timmer in the Installation manual. NOTE #6: IMPORTANT !!!!! this wire MUST BE CONNECTED as IGNITION #2 for REMOTE STARTING!!!!!!

What sensor do you think this code pertains too. ?
P0720 OSS Insufficient Input From OSS Sensor PCM detected a loss of OSS signal during operation. Harsh shift, possible abnormal shift schedule. Go To Pinpoint Test E . What makes you think it's the sensor ? Could be a wiring issue , PCM - engine computer .
Test Step Result / Action to Take E1 ELECTRONIC DIAGNOSTICS SET UP

• Check to make sure the transaxle harness connectors are fully seated, terminals are fully engaged in the connector and in good condition before proceeding.
• Connect the diagnostic tool.
• Key in ON position.
• Enter the following diagnostic mode on the diagnostic tool: Diagnostic Data Link.
• Enter the following diagnostic mode on the diagnostic tool: PCM.
• Select Trans Priority.
• Select PID/Data Monitor and Record.
• Select the following PIDs: TSS or OSS.
• Does vehicle enter PID/Data Monitor and Record?

Yes
REMAIN in PID/Data. GO to E2 .

No
REPEAT procedure to ENTER PID. If vehicle did not enter PID, REFER to the Powertrain Control/Emissions Diagnosis (PC/ED) manual for diagnosis of PCM. E2 DRIVE CYCLE TEST

• While monitoring the appropriate sensor PID, drive the vehicle so that the transaxle upshifts and downshifts through all gears.
• Does the TSS or OSS Speed PID increase and decrease with engine and vehicle speed?

Yes
GO to E3 .

No
If the TSS or OSS Speed PID does not increase and decrease with engine and vehicle speed, INSPECT for open or short in vehicle harness STGT, sensor, a PCM concern or internal hardware concern. GO to E4 . E3 DRIVE CYCLE TEST ERRATIC

• While monitoring the appropriate sensor PID, drive the vehicle so that the transaxle upshifts and downshifts through all gears.
• Is the TSS or OSS Speed PID signal erratic (drop to zero or near zero and return to normal operation)?

Yes
If the sensor signal is erratic, INSPECT for intermittent concern in the harness, sensor or connector. GO to E4 .

No
CLEAR all DTCs. Rerun OBD. E4 CHECK POWERTRAIN CONTROL MODULE AND HARNESS FOR POWER

• Key in OFF position.
• Disconnect: TSS Sensor Connector.
• Disconnect: OSS Sensor Connector.
• Key in ON position.
• For TSS, measure the voltage between TSS sensor connector pin 1, harness side and ground; and between TSS sensor connector pin 2, harness side and ground.
• For OSS, measure the voltage between OSS connector pin 1, harness side and ground; and between OSS connector pin 2, harness side and ground.
  
• Is there any voltage?

Yes
GO to E5 .

No
GO to E6 . E5 CHECK HARNESS FOR SHORT TO POWER

• Key in OFF position.
• Disconnect: PCM Connector.
• Key in ON position.
• For TSS, measure the voltage between TSS sensor connector pin 1, harness side and ground; and between TSS sensor connector pin 2, harness side and ground.
• For OSS, measure the voltage between OSS connector pin 1, harness side and ground; and between OSS connector pin 2, harness side and ground.
  
• Is there any voltage?

Yes
REPAIR the circuit in question. TEST the system for normal operation.

No
INSTALL a new PCM. TEST the system for normal operation. E6 CHECK POWERTRAIN CONTROL MODULE AND HARNESS FOR GROUND

• Key in OFF position.
• Connect: PCM C415.
• For TSS, measure the resistance between TSS sensor connector pin 1, harness side and ground; and between TSS sensor connector pin 2, harness side and ground.
• For OSS, measure the resistance between OSS connector pin 1, harness side and ground; and between OSS connector pin 2, harness side and ground.
  
• Is the resistance greater than 10,000 ohms?

Yes
GO to E8 .

No
GO to E7 . E7 CHECK HARNESS FOR SHORT TO GROUND

• Key in OFF position.
• Disconnect: PCM Connector.
• For TSS, measure the resistance between TSS sensor connector pin 1, harness side and ground; and between TSS sensor connector pin 2, harness side and ground.
• For OSS, measure the resistance between OSS connector pin 1, harness side and ground; and between OSS connector pin 2, harness side and ground.
  
• Is the resistance greater than 10,000 ohms?

Yes
INSTALL a new PCM. TEST the system for normal operation.

No
REPAIR the circuit in question. TEST the system for normal operation. E8 CHECK RESISTANCE OF TSS SENSOR OR OSS.

• For TSS sensor, measure the resistance between TSS sensor connector pin 1, component side and TSS sensor connector pin 2, component side.
• For OSS, measure the resistance between OSS connector pin 1, component side and OSS connector pin 2, component side.
• Record the resistance. Resistance should be as follows:
  • OSS 675-775 ohms at -20°C (-4°F).
  • OSS 800- 920 ohms at 21°C (70°F).
  • OSS 1210-1390 ohms at 160°C (302°F).
  • TSS 273-333 ohms at -20°C (-4°F).
  • TSS 330-390 ohms at 21°C (70°F).
  • TSS 487-601 ohms at 160°C (302°F).
  
  
• Is the resistance within specification for the appropriate sensor?

Yes
GO to E9 .

No
INSTALL a new sensor. TEST the system for normal operation. E9 CHECK SENSORS FOR SHORT TO GROUND

• For TSS sensor, measure the resistance between TSS sensor connector pin 1, component side and ground.
• For OSS, measure the resistance between OSS connector pin 1, component side and ground.
  
• Is the resistance greater than 10,000 ohms?

Yes
INSTALL a new TSS sensor or OSS. TEST the system for normal operation.

No
REFER to Diagnosis By Symptom , for diagnosis of shift or torque converter concerns.

I believe that's a Speed Sensor issue.

Diag:
1. Ensure mainshaft and countershaft speed sensors are installed properly. Disconnect mainshaft speed sensor harness connector. Using a DVOM, measure resistance between sensor terminals.

2. If resistance is not 400-600 ohms, replace mainshaft speed sensor. If resistance is 400-600 ohms, disconnect 25-pin PCM harness connector "B". Check for continuity between ground and 25-pin PCM harness connector "B", terminals No. 15 (Red wire) and No. 14 (White wire).

3. If continuity is present, repair short to ground in Red or White wire between PCM and mainshaft speed sensor. If continuity is not present, reconnect mainshaft speed sensor harness connector. Measure resistance between 25-pin PCM harness connector "B", terminals No. 15 (Red wire) and No. 14 (White wire).

4. If resistance is not 400-600 ohms, go to next step. If resistance is 400-600 ohms, go to DTC
P0720 (FLASH CODE 9) . Check for loose PCM harness connectors. Replace PCM with a
known-good unit if necessary.

5. Disconnect mainshaft speed sensor harness connector. Check Red wire for continuity between 25-pin PCM harness connector "B", terminal No. 15 and mainshaft speed sensor harness connector. If continuity is present, go to next step. If continuity is not present, repair open in Red wire between 25-pin PCM harness connector and mainshaft speed sensor
harness connector.

6. Check White wire for continuity between 25-pin PCM harness connector "B", terminal No. 14 and mainshaft speed sensor harness connector. If continuity is present, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary. If continuity is not present, repair open in White wire between 25-pin PCM harness connector and mainshaft speed sensor harness connector.

Speed Sensor probably. Try:
1. Ensure mainshaft and countershaft speed sensors are installed properly. Disconnect mainshaft speed sensor harness connector. Using a DVOM, measure resistance between sensor terminals.

2. If resistance is not 400-600 ohms, replace mainshaft speed sensor. If resistance is 400-600 ohms, disconnect 25-pin PCM harness connector "B". Check for continuity between ground and 25-pin PCM harness connector "B", terminals No. 15 (Red wire) and No. 14 (White wire).

3. If continuity is present, repair short to ground in Red or White wire between PCM and mainshaft speed sensor. If continuity is not present, reconnect mainshaft speed sensor harness connector. Measure resistance between 25-pin PCM harness connector "B", terminals No. 15 (Red wire) and No. 14 (White wire).

4. If resistance is not 400-600 ohms, go to next step. If resistance is 400-600 ohms, go to DTC
P0720 (FLASH CODE 9) . Check for loose PCM harness connectors. Replace PCM with a
known-good unit if necessary.

5. Disconnect mainshaft speed sensor harness connector. Check Red wire for continuity between 25-pin PCM harness connector "B", terminal No. 15 and mainshaft speed sensor harness connector. If continuity is present, go to next step. If continuity is not present, repair open in Red wire between 25-pin PCM harness connector and mainshaft speed sensor
harness connector.

6. Check White wire for continuity between 25-pin PCM harness connector "B", terminal No. 14 and mainshaft speed sensor harness connector. If continuity is present, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary. If continuity is not present, repair open in White wire between 25-pin PCM harness connector and mainshaft speed sensor harness connector.

https://s21.postimg.org/wwpncpluf/pcm_power_relay.jpg

Click on the link.
Voltage for fuse 18 comes from, pcm power relay.
Terminal 30, load side of relay is fuse protected and hot all the time. If you unplug that relay and use jumper wire between terminal 30 and 87, fuse 18 should go hot. That should mean, the control side of relay has a problem, The control side needs voltage and ground.

DTC P1705 - NC2 (Direct Clutch Speed Sensor) Revolution Sensor Circuit malfunction or Direct Clutch Speed Sensor Output is 300 RPM or less with Vehicle at 20 MPH or more & with Park/Neutral Position Switch Off

Most probably you have an electrical fault causing the problem and attached is a diagnostic procedure. It could be 2 separate problems and after rectifying the P1705 only would you know it is single or 2. Repair manual shows right on top of transmission, black sensor with single bolt, 2 wire plug. P/N 89413-08020 list price $113.80

NOTE: DTC P1705 is set when PCM receives 2 gear position signals at the same time.

1. Turn ignition on. If any A/T gear position indicator lights remain illuminated when gear selector is moved from that gear, go to next step. If all A/T gear position indicator lights turn off when gear selector is moved from that gear, system is okay at this time.

2. Disconnect A/T gear position switch connector. If all A/T gear position switch indicators go out, replace A/T gear position switch. If all A/T gear position switch indicators do not go out, go to next step.

3. Reconnect A/T gear position switch connector. Shift through all gear positions except Reverse. Using a DVOM, measure voltage between 16-pin PCM harness connector "D", terminal No. 6 (Green/Red wire on 2.3CL or White wire on Accord and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires).

If battery voltage is present, go to next step. If battery voltage is not present, check for a short in Green/Red or White wire between 16-pin PCM harness connector "D" and A/T gear position indicator, or A/T gear position switch. Repair as necessary. If Green/Red or White wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.

4. Shift through all gear positions except Neutral and Park. Measure voltage between 16-pin PCM harness connector "D", terminal No. 13 (Blue/White wire on Accord or Light Green wire on 2.3CL and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires). If battery voltage is present, go to next step. If battery voltage is not present, check for a short in Blue/White or Light Green wire between 16-pin PCM harness connector "D" and A/T gear position indicator, or A/T gear position switch. Repair as necessary. If Blue/White or Light Green wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.

5. Shift through all gear positions except "D4". Measure voltage between 16-pin PCM harness connector "D", terminal No. 9 (Light Green/Black wire on 2.3CL or Yellow wire on Accord and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires). If battery voltage is present, go to next step. If battery voltage is not present, check for a short in Light Green/Black or Yellow wire between 16-pin PCM harness connector "D" and A/T gear position switch. Repair as necessary. If Light Green/Black or Yellow wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.

6. Shift through all gear positions except "D3". Measure voltage between 16-pin PCM harness connector "D", terminal No. 8 (Green/Blue wire on 2.3CL or Pink wire on Accord and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires). If battery voltage is present, go to next step. If battery voltage is not present, check for a short in Green/Blue or Pink wire between 16-pin PCM harness connector "D" and A/T gear position indicator, or A/T gear position switch. Repair as necessary. If Green/Blue or Pink wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.

7. Shift through all gear positions except "2". Measure voltage between 16-pin PCM harness connector "D", terminal No. 14 (Green/Yellow wire on 2.3CL or Blue wire on Accord and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires). If battery voltage is present, go to next step. If battery voltage is not present, check for a short in Green/Yellow or Blue wire between 16-pin PCM harness connector "D" and A/T gear position indicator, or A/T gear position switch. Repair as necessary. If Green/Yellow or Blue wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.

8. Shift through all gear positions except "1". Measure voltage between 16-pin PCM harness connector "D", terminal No. 15 (Light Green/White wire on 2.3CL or Brown wire on Accord and Odyssey) and 25-pin PCM harness connector "B" terminals No. 20 or 22 (Brown/Black wires). If battery voltage is present, check for loose PCM harness connectors. Replace PCM with a known- good unit if necessary. If battery voltage is not present, check for a short in Light Green/White or Brown wire between 16-pin PCM harness connector "D" and A/T gear position indicator, or A/T gear position switch. Repair as necessary. If Light Green/White or Brown wire is okay, check for loose PCM harness connectors. Replace PCM with a known-good unit if necessary.


Hope helps.

Grand Cherokee oxygen sensor locations for 4.0 and 4.7 engines







Four wires (circuits) are used on each O2 sensor:

• 12–volt feed circuit for the sensor heating element
• Ground circuit for the heater element
• Low-noise sensor return circuit to the PCM
• Input circuit from the sensor back to the PCM to detect sensor operation

O2S Sensor removal Never apply any type of grease to the oxygen sensor electrical connector, or attempt any soldering of the sensor wiring harness.
WARNING: THE EXHAUST MANIFOLD, EXHAUST PIPES AND CATALYTIC CONVERTER(S) BECOME VERY HOT DURING ENGINE OPERATION. ALLOW ENGINE TO COOL BEFORE REMOVING OXYGEN SENSOR.
1. Raise and support vehicle.
2. Disconnect O2S pigtail harness from main wiring harness.
3. If equipped, disconnect sensor wire harness mounting clips from engine or body.
CAUTION: When disconnecting sensor electrical connector, do not pull directly on wire going into sensor.
4. Remove O2S sensor with an oxygen sensor removal and installation tool.

02S Sensor installation
Threads of new oxygen sensors are factory coated with anti-seize compound to aid in removal. DO NOT add any additional anti-seize compound to threads of a new oxygen sensor.
1. Install O2S sensor. Tighten to 22 ft. lbs. (30 N·m) torque.
2. Connect O2S sensor wire connector to main wiring harness.
3. If equipped, connect sensor wire harness mounting clips to engine or body. When Equipped: The O2S pigtail harness must be clipped and/or bolted back to their original positions on engine or body to prevent mechanical damage to wiring.


Hope thats help (remember comment and rated this).

Sounds like you need a light tester. I would guess that at least 8 of the wires are speaker + & - the others will be Main power and earth Possibly electric ariel, Memory store and a wire for the anti theft circuit. Assuming the stereo is factory. Any Audio shop can perform a test to clarify the purpose of the wires Wouldnt worry about the blank its probably a position for a newer or different model to yours. Steve in the UK

if it is the wiring diagram for the Escape you need, here it is:

12 VOLT CONSTANT Connect to BATTERY ONLY STARTER TAN/LIGHT BLUE (+) IGNITION SWITCH HARNESS STARTER 2 N/A IGNITION 1 LIGHT GREEN/PURPLE (+) IGNITION SWITCH HARNESS IGNITION 2 N/A IGNITION 3 N/A ACCESSORY/HEATER BLOWER 1 BLACK/LIGHT GREEN (+) IGNITION SWITCH HARNESS ACCESSORY/HEATER BLOWER 2 N/A KEYSENSE N/A PARKING LIGHTS ( - ) WHITE/BLACK (-) @ SJB, Connector E, Pin 4, See NOTE *1 PARKING LIGHTS ( + ) BROWN (+) @ SJB, Connector C, Pin 19, See NOTE *1 POWER LOCK PINK/WHITE (1-Wire System) See NOTE *2 @ SJB, Connector D, Pin 22, See NOTE *1 POWER UNLOCK Same wire, See NOTE *2 See DIAGRAMS DOOR TRIGGER PINK (-) @ SJB, Connector C, Pin 28, See NOTE *1 DOMELIGHT SUPERVISION USE DOOR TRIGGER TRUNK RELEASE N/A SLIDING POWER DOOR N/A HORN YELLOW/LIGHT GREEN (-) @ SJB, Connector A, Pin 14, See NOTE *1 TACH NOT RED or WHITE/RED @ IGNITION COIL or FUEL INJECTOR WAIT TO START LIGHT N/A BRAKE LIGHT GREEN (+) @ SWITCH ABOVE BRAKE PEDAL FACTORY ALARM DISARM DARK BLUE/LIGHT GREEN (-) @ SJB, Connector D, Pin 3, See NOTE *1 ANTI-THEFT FORD'S SECURILOCK ANTI-THEFT TRANSPONDER SYSTEM TRANSPONDER @ IGNITION SWITCH TUMBLER EXTRA INFORMATION NOTE *1 The SJB (Smart Junction Block) is the FUSE/RELAY BOX on the PASSENGER SIDE of the CENTER CONSOLE. NOTE *2 This vehicle uses a 1-Wire Door Locking System, LOCK requires a (-)Negative thru a 1000 Ohm Resistor and UNLOCK requires a straight (-)Negative