DETAILED FLOW
Note. To ensure a complete and thorough diagnosis, the battery, starter motor and generator test segments must be done as a set from start to finish.
- DIAGNOSIS WITH MULTITASKING BATTERY DIAGNOSTIC STATION Perform the starting system test with multitasking battery diagnostic station. For details and operating instructions, refer to diagnostic station service information. Test result CRANKING NORMAL >> GO TO 2 LOW VOLTAGE >> GO TO 5 CHARGE BATTERY >> Perform the slow battery charging procedure. (Initial rate of charge is 10A for 12 hours.) Perform battery test again. Refer to diagnostic station service information. REPLACE BATTERY >> Before replacing battery, clean the battery cable clamps and battery posts. Perform battery test again. Refer to diagnostic station service information. If second test result is "REPLACE BATTERY", then do so. Perform battery test again to confirm repair.
- CRANKING CHECK Check that the starter motor operates properly. Does the engine crank normally? YES >> GO TO 3 NO >> GO TO 4
- ENGINE START CHECK Check that the engine starts. Does the engine start? YES >> Starter motor is OK. Inspection end. NO >> Perform further diagnosis of engine mechanical or engine control system. Refer to «ENGINE MECHANICAL -- MAXIMA»(ref-388044) and «ENGINE CONTROL SYSTEM -- MAXIMA»(ref-388048) Once resolved, perform battery test again.
- STARTER MOTOR ACTIVATION Check that the starter motor operates. Does the starter motor turn? YES >> Check ring gear and starter motor drive pinion. Once resolved, perform battery test again. NO >> GO TO 7
- COMPARISON BETWEEN ENGINE COOLANT AND CRANKING VOLTAGE Compare the engine coolant temperature and verify the cranking voltage is within specification. COMPARISON BETWEEN ENGINE COOLANT AND CRANKING VOLTAGE CHART Minimum Specification of Cranking Voltage Referencing Coolant Temperature Engine coolant temperature [°C (°F)] Voltage [V] -30 to -20 (-22 to -4) 8.6 -19 to -10 (-2 to 14) 9.1 -9 to 0 (16 to 32) 9.5 More than 1 (More than 34) 9.9 Is the voltage less than the specified value? YES >> GO TO 7 NO >> GO TO 6
- STARTER OPERATION Check the starter operation. Does the starter motor turn smoothly? YES >> Starter motor is OK. Inspection end. NO >> GO TO 7
- "B" TERMINAL CIRCUIT INSPECTION Check "B" terminal circuit. Refer to " «DIAGNOSIS PROCEDURE»(ref-388059-S18396545932011022800000) ". Is "B" terminal circuit normal? YES >> GO TO 8 NO >> Repair as needed.
- "S" CONNECTOR CIRCUIT INSPECTION Check "S" connector circuit. Refer to " «DIAGNOSIS PROCEDURE»(ref-388059-S28240615012011022800000) ". Is "S" connector circuit normal? YES >> GO TO 9 NO >> Repair as needed.
- ENGINE ROTATION STATUS Check that the engine can be rotated by hand. Does the engine turn freely by hand? YES >> Replace starter motor. Refer to " «REMOVAL AND INSTALLATION»(ref-388059-S20201299772011022800000) ". NO >> Perform further diagnosis of engine mechanical or powertrain mechanism. Refer to «ENGINE MECHANICAL -- MAXIMA»(ref-388044) or «AUTOMATIC TRANSMISSION -- MAXIMA»(ref-388054) Once resolved, perform battery test again. Refer to diagnostic station service information.
Scheme 11
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted. Information necessary to service the system safely is included in the SRS AIRBAG -- MAXIMA " and SEAT BELTS -- MAXIMA " articles
| WARNING | To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision which would result in air bag inflation, all maintenance must be performed by an authorized NISSAN/INFINITI dealer. Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag Module, see the SRS AIRBAG article. Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this Service Information. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors. |
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
| WARNING | When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service. |
Special Service Tool
SPECIAL SERVICE TOOLS DESCRIPTION CHART Tool number (Kent Moore No.) Tool name Description - (-) Model GR-8 Multitasking battery diagnostic station Tests Batteries, starting and charging system. For operating instructions, refer to diagnostic station service information
Scheme 12
Commercial Service Tools
COMMERCIAL SERVICE TOOLS DESCRIPTION CHART Tool name Description Power tools Loosening bolts and nuts
Scheme 13
- Remove the air cleaner assembly and air ducts. Refer to " «REMOVAL AND INSTALLATION»(ref-388044-S37478427172011022800000) ".
- Remove the battery tray. Refer to " «REMOVAL AND INSTALLATION (BATTERY TRAY)»(ref-388040-S08029399692011022800000) ".
- Disconnect the battery cable (A) and starter harness connector.
- Remove the starter bolts, then remove the starter.
Starter
| Application | VQ35DE | |
|---|---|---|
| CVT model | ||
| Type (1) | Mitsubishi M000TA0072 | |
| Reduction gear type | ||
| System voltage | 12V | |
| No-load | Terminal voltage | 11V |
| Current | Less than 90A | |
| Revolution | More than 2,400 rpm | |
| (1) Always check with the Parts Department for the latest parts information. | ||
| (1) | Always check with the Parts Department for the latest parts information. |
STARTER SPECIFICATION CHART