2010 Cadillac Truck SRX FWD V6-3.0L Page 2023

Circuit/System Testing

1. Ignition OFF, remove the KR25 secondary air injection pump relay.

2. Ignition ON, verify that a test lamp does not illuminate between the controlled output circuit terminal 30 and ground.

瀚慖f the test lamp illuminates, test the controlled output circuit for a short to voltage.

3. Verify that a test lamp illuminates between the secondary air injection pump relay coil B+ circuit terminal 86 and ground.

瀚慖f the test lamp does not illuminate, test the ignition circuit for a short to ground or an open/high resistance. If the circuit tests normal and

the ignition circuit fuse is open, test all components connected to the ignition circuit and replace as necessary.

4. Connect a test lamp between the control circuit terminal 85 and the secondary air injection pump relay coil B+ circuit terminal 86.

5. Command the secondary air injection pump relay 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 K20 engine control

module.

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 K20 engine control module.

6. If all circuits test normal, test or replace the KR25 secondary air injection pump relay.

Component Testing

1. Ignition OFF, disconnect the KR25 secondary air injection pump relay.

2. Test for 70-110 ohm between terminals 85 and 86.

瀚慖f the resistance is not within the specified range, replace the KR25 secondary air injection pump relay.

3. Test for infinite resistance between the following terminals:

* 86 and 87

* 86 and 30

* 85 and 87

* 87 and 30

瀚慖f not the specified value, replace the KR25 secondary air injection pump relay.

4. Install a 20 A fused jumper wire between relay terminal 86 and B+. Install a jumper wire between relay terminal 85 and ground. Test for less

than 2 ohm between terminals 87 and 30.

瀚慖f greater than the specified range, replace the KR25 secondary air injection pump relay.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

Control Module References (See: Testing and Inspection/Programming and Relearning)for engine control module replacement, setup, and

programming

P2258

DTC P0418, P2257, or P2258

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 P0418

- Secondary Air Injection Pump Control Circuit

P179D The redundancy system for DIRECT SELECT was activated. There is a signal above the permissible limit value.

P179D The redundancy system for DIRECT SELECT was activated. There is a signal above the permissible limit value.2010 Mercedes Benz E 63 AMG Sedan (212.077) V86.3L (156.985) Copyright ? 2013, ALLDATA 10.52SS Page 978 Possible cause: A80 (Intelligent servo module for DIRECT SELECT) Affected functions: Drive position selection Test 1: Remedial action if control unit is faulty 'A80 (Intelligent servo module for DIRECT SELECT)' 1. Remedial action if control unit is faulty 'A80 (Intelligent servo module for DIRECT SELECT)' Operation number of operation texts and work units or standard texts and flat rates:270641Possible cause and remedy Internal fault in control unit Replace component A80 (Intelligent servo module for DIRECT SELECT). Additional measures Perform initial startup. Continue with button "F2" Initial startup The following procedure will guide you through all steps requ...

Dremel 4300-9/64 Versatile Corded Rotary Tool Kit with Flex Shaft and Hard Storage Case, High Power & Performance, Variable Speed- Engraver, Etcher, Sander, and Polisher, Ultimate Gift for the DIYER

The Dremel 4300-9/64 is a versatile corded rotary tool kit designed for a wide range of applications, making it an excellent choice for DIY enthusiasts and professionals alike. Here’s an overview of its key features: ### Key Features 1. **Power and Performance**: - **High Power Motor**: The 4300 features a powerful motor that provides efficient performance for various tasks, including engraving, etching, sanding, and polishing. 2. **Variable Speed**: - **Adjustable RPM**: Offers a variable speed range (typically 5,000 to 35,000 RPM) for precise control, allowing you to match the speed to the material and task at hand. 3. **Flex Shaft Attachment**: - **Enhanced Maneuverability**: The included flex shaft allows for more intricate work in tight spaces and provides a comfortable grip for detailed projects. 4. **Comprehensive Accessory Kit**: - **Versatile Attachments**: Comes with a variety of attachments and accessories, including ...

D138， Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts

D138 The message from the auxiliary oil pump is not available on the CAN bus. Possible cause: M42 (Electric transmission oil pump) / N89 (Transmission oil additional pump control unit) Affected functions: Engine start ------------------------------------------------- Test 1: Check component M42 (Electric transmission oil pump). Check component M42 (Electric transmission oil pump). Operation number of operation texts and work units or standard texts and flat rates:27-0641Test prerequisite Battery voltage is OK. Test sequence Switch off ignition. Disconnect connector at component N89 (Transmission oil additional pump control unit). Use multimeter to check voltage directly at jacks of wiring harness for component N89 (Transmission oil additional pump control unit). Switch on ignition. Measure direct voltage with multimeter between 1 and 4Specified value - Voltage [8,5...16,4] V Question Is the measurement value OK?...

Mercedes Benz

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