Home ReviewsRefund
Home/Mercury/Mariner/Mercury Mariner II рестайлинг (2011-2011)/Repair manual/Module Communications Network/Normal Operation
Contents Section: Module Communications Network All sections

Normal Operation Mercury Mariner II рестайлинг

Module Communications Network 5 illustrations ~681 words

Normal Operation

The PCM communicates with the scan tool through the High Speed Controller Area Network (HS-CAN).

This pinpoint test is intended to diagnose the following

  1. Fuse
  2. Wiring, terminals or connectors
  3. PCM

Note. Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.

Note. Failure to disconnect the battery when instructed will result in false resistance readings. Refer to BATTERY, BATTERY MOUNTING SYSTEM & BATTERY CABLES article.

Scheme 11

Scheme 11: PINPOINT TEST A: THE PCM DOES NOT RESPOND TO THE SCAN TOOL
Scheme 11: PINPOINT TEST A: THE PCM DOES NOT RESPOND TO THE SCAN TOOL

Scheme 12

Scheme 12
Scheme 12

Scheme 13

Scheme 13
Scheme 13

Scheme 14

Scheme 14
Scheme 14

Scheme 15

Scheme 15
Scheme 15
  1. A1 VERIFY WHETHER OTHER HS-CAN MODULES PASS THE NETWORK TEST Ignition ON. Enter the following diagnostic mode on the scan tool: Network Test. In the LH pane of the Integrated Diagnostic System (IDS) network test display screen, verify whether any HS-CAN modules passed the network test. Is the text "pass" or a DTC listed next to any of the following modules (if equipped): 4x4 control module, ABS module, Accessory Protocol Interface Module (APIM), Battery Control Module - High Voltage Traction Battery (BCM-HVTB), Instrument Cluster (IC), Occupant Classification System Module (OCSM), Parking Aid Module (PAM), Power Steering Control Module (PSCM), Restraints Control Module (RCM), Transmission Control Module (TCM) or PCM? YES: If "pass" or a DTC was listed next to the PCM, a network fault is not currently present. GO to «PINPOINT TEST R»(/mercury/mariner/ii-2011-2011/remont/communication-devices/#module-communications-network__pinpoint-test-r-the-accessory-protocol) to diagnose an intermittent HS-CAN fault condition. If "pass" or a DTC was listed next to one or more modules other than the PCM, GO to A2 . NO: No modules are currently communicating on the HS-CAN . GO to «PINPOINT TEST T»(/mercury/mariner/ii-2011-2011/remont/communication-devices/#module-communications-network__pinpoint-test-t-no-high-speed) to diagnose no HS-CAN communication.
  2. A2 VERIFY THE PC/ED MANUAL PINPOINT TEST QA HAS BEEN CARRIED OUT Verify that pinpoint test QA has been carried out. Has pinpoint test QA been carried out? YES: GO to A3 . NO: REFER to the «INTRODUCTION»(/mercury/mariner/ii-2011-2011/remont/testing-diagnostics/#engine-controls-introduction-except-diesel-hybrid) article, Section 5, pinpoint test QA to diagnose no communication with the PCM.
  3. A3 CHECK THE HS-CAN TERMINATION RESISTANCE Ignition OFF. Disconnect: Negative Battery Cable. Measure the resistance between the DLC C251-6, circuit VDB04 (WH/BU), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Is the resistance between 54 and 66 ohms? YES: CONNECT the negative battery cable. GO to A6 . NO: For non-hybrid, GO to A4 . For hybrid, GO to A5 .
  4. A4 CHECK THE CAN CIRCUITS BETWEEN THE PCM AND THE DLC FOR AN OPEN - NON-HYBRID Measure the resistance between the PCM C175b-59, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the PCM C175b-58, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES: CONNECT the negative battery cable. GO to A6 . NO: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
  5. A5 CHECK THE CAN CIRCUITS BETWEEN THE PCM AND THE DLC FOR AN OPEN - HYBRID Measure the resistance between the PCM C175b-59, circuit VDB04 (WH/BU), harness side and the DLC C251-6, circuit VDB04 (WH/BU), harness side. Measure the resistance between the PCM C175b-43, circuit VDB05 (WH), harness side and the DLC C251-14, circuit VDB05 (WH), harness side. Are the resistances less than 5 ohms? YES: CONNECT the negative battery cable. GO to A6 . NO: REPAIR the circuit in question. CONNECT the negative battery cable. CLEAR the DTCs. REPEAT the network test with the scan tool.
  6. A6 CHECK FOR CORRECT PCM OPERATION Disconnect all the PCM connectors. Check for: corrosion damaged pins pushed-out pins Connect all the PCM connectors and make sure they seat correctly. Operate the system and verify the concern is still present. Is the concern still present? YES: INSTALL a new PCM. REFER to «ELECTRONIC ENGINE CONTROLS - 2.5L»(/mercury/mariner/ii-2011-2011/remont/removal-installation/#electronic-engine-controls-25l-except-hybrid) article or «ELECTRONIC ENGINE CONTROLS - 3.0L (4V)»(/mercury/mariner/ii-2011-2011/remont/removal-installation/#electronic-engine-controls-30l-4v) article. CONNECT all modules. CLEAR the DTCs. REPEAT the network test with the scan tool. NO: The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector. CONNECT all modules.