2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1933
瀚慖f the test lamp does not illuminate, test the ignition voltage circuit for a short to ground or an open/high resistance. If the circuit tests
normal and the ignition voltage circuit fuse is open, test or replace the fuel injector.
3. Connect the J 34730-405 between the control circuit terminal B and the ignition voltage circuit terminal A.
4. Command the fuel injector ON and OFF with a scan tool. The test lamp should turn ON and OFF when changing between the commanded
states.
瀚慖f the test lamp is always ON, test the control circuit for a short to ground. If the circuit tests normal, replace the engine control module
(ECM).
瀚慖f the test lamp is always OFF, test the control circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace
the ECM.
5. If all circuits test normal, test or replace the fuel injector.
Component Testing
Note: The engine coolant temperature (ECT) sensor must be between 10-32掳C (50-90掳F) for an accurate measurement.
Measure for 11-14 ohm between the terminals of the fuel injector.
If not within the specified range, replace the fuel injector.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Fuel Injector Replacement (See: Powertrain Management/Fuel Delivery and Air Induction/Fuel Injector/Service and Repair/Removal and
Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for ECM replacement, setup, and programming
P0207
DTC P0201, P0202, P0203, P0204, P0205, P0206, P0207, or P0208
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC P0201
- Injector 1 Control Circuit
DTC P0202
- Injector 2 Control Circuit
DTC P0203
- Injector 3 Control Circuit
DTC P0204
- Injector 4 Control Circuit
DTC P0205
- Injector 5 Control Circuit
DTC P0206
- Injector 6 Control Circuit
DTC P0207
- Injector 7 Control Circuit
DTC P0208
- Injector 8 Control Circuit
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Saturday, November 7, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 1933
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