#
NO.6 CRANKS NORMALLY BUT WILL NOT START [AJ] (VIN: JMZ LW19J7*# 300001-, JM0 LW10J300 300001-301405, JM6 LW10J300 300001-, JM8 LW28J**# 300001-301513)

BME010300103211

6 | Cranks normally but will not start
DESCRIPTION | • Starter cranks engine at normal speed but engine will not run. • Refer to symptom troubleshooting "No.5 Engine stalls" if this symptom appears after engine stall. • Fuel in tank. • Battery is in normal condition.
POSSIBLE CAUSE | • No battery power supply to PCM • Air leakage from intake-air system • Open PCM GND or vehicle body GND • Improper operation of IAC valve • EGR valve malfunction
• No signal from CKP sensor due to sensor or related wiring harness
• No signal from CMP sensor due to sensor or related wiring harness
• Low engine compression
• Vacuum leakage
• Spark leakage from ignition coils
• Poor fuel quality
• PCV valve malfunction
• Air cleaner restriction
• Restriction in exhaust system
• Disconnected electrical connector
• Open or short circuit in fuel pump and related harness
• Inadequate fuel pressure
• Fuel pump mechanical malfunction
• Fuel leakage from fuel injector
• Fuel injector clogging
• Purge solenoid valve malfunction
• Immobilizer system and/or circuit malfunction

  Warning

  • The following troubleshooting flow chart contains the fuel system diagnosis and repair procedures. Read the following warnings before performing the fuel system services:

  - Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep sparks and flames away from fuel.
  - Fuel line spills and leakage are dangerous. Fuel can ignite and cause serious injuries or death and damage. Fuel can also irritate skin and eyes. To prevent this, always complete "BEFORE SERVICE PRECAUTION" and "AFTER SERVICE PRECAUTION" described in this manual.
  (See BEFORE SERVICE PRECAUTION [AJ].)
  (See AFTER SERVICE PRECAUTION [AJ].)

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 |

  Note

  • The following test should be performed on vehicles with the immobilizer system. Go to Step 12 for vehicles without the immobilizer system.

• Connect the WDS or equivalent to the DLC-2.

  - Do the following conditions appear?
  - The engine is not completely started.
  - DTC P1624 is displayed.

Yes
Both conditions appear:
• Go to Step 4.
No | Either or other condition appear: • Go to the next step.
2 | • Does the engine stall after approx. 2 s since the engine is started? | Yes | Go to the next step.
No | The immobilizer system is normal. Go to Step 12.
3 | • Is the immobilizer control module connector securely connected to the immobilizer control module? | Yes | Go to the next step.
No | Connect the immobilizer control module connector securely. Return to Step 2.
4 | • Does the immobilizer indicator light flash and indicate the following immobilizer system DTC? DTC 01, 02, 03, 11, 21 | Yes | Go to "ON-BOARD DIAGNOSTIC FUNCTION" of the immobilizer system.
No | Go to the next step.
5 | • Does the immobilizer indicator light illuminate? | Yes | Go to Step 8.
No | Go to the next step.
6 | • Does the immobilizer indicator light flash and indicate the following immobilizer system DTC after above 135 s after the ignition switch is turned to the ON position (Engine off)? DTC 24, 30 | Yes | Go to "ON-BOARD DIAGNOSTIC FUNCTION" of the immobilizer system.
No | Go to the next step.
7 | • Turn the ignition switch off. • Disconnect the immobilizer control module connector. • Connect a jumper wire between immobilizer control module connector terminal M and GND. • Turn the ignition switch to the ON position (Engine off). • Does the immobilizer indicator light illuminate? | Yes | Reconnect the immobilizer control module connector. Go to the next step.
No | Inspect for open circuit between immobilizer control module connector terminal M and instrument cluster. • If normal, inspect the immobilizer indicator light bulb. Repair or replace if necessary. Reconnect the immobilizer control module connector, then return to Step 4.
8 | • Connect the WDS or equivalent to the DLC and retrieve DTC. • Is the following DTC displayed? DTC P1602, P1603, P1604, P1621, P1622, P1624 | Yes | Go to the applicable DTC inspection. (See DTC TABLE [AJ] (VIN: JMZ LW19J7*# 300001-, JM0 LW10J300 300001-301405, JM6 LW10J300 300001-, JM8 LW28J**# 300001-301513).)
No | Go to the next step.
9 | • Is there continuity between PCM ground terminals 24/51/76/77/103 and GND? | Yes | Go to the next step.
No | Repair or replace the wiring harness.
10 | • Turn the ignition switch to the ON position (Engine off). • Measure the voltage between PCM terminals 71 and 97. • Is the voltage above 11.5 V? | Yes | Go to the next step.
No | Repair or replace the wiring harness.
11 | • Disconnect the immobilizer control module connector. • Turn the ignition switch to the ON position (Engine off). • Is there battery voltage at immobilizer control module connector terminal J? | Yes | Inspect for open circuit between PCM connector terminal 59 and immobilizer control module connector terminal A.
No | Repair or replace the wiring harness between immobilizer control module connector terminal J and fuse panel.
12 | • Verify the following:

  - Vacuum connection
  - External fuel shut off or accessory (kill switch, alarm etc.)
  - Fuel quality: proper octane, contamination, winter/summer blend
  - No air leakage from intake-air system
  - Proper sealing of intake manifold and components attached to intake manifold: EGR valve, IAC valve
  - Ignition wiring
  - Electrical connections
  - Fuses
  - Smooth operation of throttle valve

• Are all items normal?
Yes
Go to the next step.
No | Repair or replace the malfunctioning part if necessary. Repeat Step 12.
13 | • Connect the WDS or equivalent to the DLC-2. • Turn the ignition switch to the ON position (Engine off). • Retrieve any DTCs. • Is "PASSED" displayed? | Yes | No DTC is displayed: • Go to the next step.
No | DTC is displayed: • Go to the applicable DTC inspection. (See DTC TABLE [AJ] (VIN: JMZ LW19J7*# 300001-, JM0 LW10J300 300001-301405, JM6 LW10J300 300001-, JM8 LW28J**# 300001-301513).) Communication error message is displayed: • Inspect for the following:

  - Open circuit between main relay and PCM terminal 71 or 97
  - Open main relay GND circuit
  - Main relay is stuck open.
  - Open or poor GND circuit (PCM terminal 24, 51, 76, 77 or 103)
  - Poor connection of vehicle body GND

14 | • Turn the ignition switch to the ON position (Engine off). • Disconnect the TP sensor connector. • Measure the voltage at TP sensor connector VREF terminal with the ignition switch at the ON position. Voltage 4.5-5.5 V
• Is the voltage normal?
Yes
Go to the next step.
No | Go to the troubleshooting "No.29 Constant voltage." (See NO.29 CONSTANT VOLTAGE [AJ] (VIN: JMZ LW19J7*# 300001-, JM0 LW10J300 300001-301405, JM6 LW10J300 300001-, JM8 LW28J**# 300001-301513).)
15 | • Will the engine start and run smoothly at part throttle? | Yes | Inspect the IAC valve and the wiring harness.
No | Go to the next step.
16 | • Connect the WDS or equivalent to the DLC-2. • Access RPM PID. • Is RPM PID indicating engine speed when cranking the engine? | Yes | Go to the next step.
No | Inspect for the following: • Open or short circuit in CKP sensor • Open or short circuit between CKP sensor and PCM terminal 21 or 22 • Open or short circuit in CKP sensor harnesses

  - If the CKP sensor and the wiring harness are normal, go to the next step.

17 | • Visually inspect the CKP sensor and teeth of the crankshaft pulley. • Are the CKP sensor and teeth of the crankshaft pulley normal? | Yes | Go to the next step.
No | Replace the malfunctioning part.
18 | • Inspect the ignition coils. • Are the ignition coils normal? | Yes | Repair or replace the ignition coil.
No | Go to the next step.
19 | • Is strong blue spark visible at each disconnected ignition coil while cranking the engine? | Yes | Go to the next step.
No | Inspect for the following: • Open or short circuit in ignition coil • Open circuit between ignition switch and ignition coil • Open circuit between ignition coil and PCM terminal 1, 26, 27, 52, 78 or 82
20 | • Inspect the spark plug conditions. • Is the spark plug wet, covered with carbon or grayish white? | Yes | Spark plug is wet or covered with carbon: • Inspect for fuel leakage from the fuel injector. Spark plug is grayish white: • Inspect for the clogged fuel injector.
No | Install spark plugs on original cylinders. Go to the next step.
21 | • Remove and shake the PCV valve. • Does the PCV valve rattle? | Yes | Go to the next step.
No | Replace the PCV valve.
22 | • Inspect for restriction in the exhaust system. • Is there any restriction? | Yes | Inspect the exhaust system.
No | Go to the next step.
23 | • Install a fuel pressure gauge between the pulsation damper and the fuel distributor. • Connect a jumper wire between F/P terminal at the DLC in engine compartment and GND. • Turn the ignition switch to the ON position (Engine off). • Is fuel line pressure correct when the ignition switch is cycled ON/OFF five times?
(See FUEL LINE PRESSURE INSPECTION [AJ].)
Yes
Go to the next step.
No | Zero or low: • Inspect fuel pump circuit. • Inspect for open fuel pump relief valve. • Inspect for fuel leakage inside the pressure regulator. • Inspect for clogged main fuel line. High:
• Inspect the pressure regulator for high pressure cause.
• Inspect for clogged fuel return line.
24 | • Visually inspect for fuel leakage at the fuel injector O-ring and fuel line. • Service if necessary. • Is fuel line pressure held after the ignition switch is turned off? | Yes | Go to the next step.
No | Inspect pressure regulator diaphragm condition. • If condition is normal, inspect the fuel injector. • If condition is not normal, replace the pressure regulator.
25 | • Disconnect the vacuum hose between the purge solenoid valve and the intake manifold from the purge solenoid valve side. • Plug opening end of the vacuum hose. • Attempt to start the engine. • Is starting condition improved? | Yes | Inspect if the purge solenoid valve is stuck open mechanically. Inspect the EVAP control system.
No | Go to the next step.
26 | • Is air leakage felt or heard at the intake-air system components while racing the engine to higher speed? | Yes | Repair or replace the malfunctioning part.
No | Go to the next step.
27 | • Inspect the engine condition while tapping the EGR valve housing. • Does the engine condition improve? | Yes | Replace the EGR valve.
No | Go to the next step.
28 | • Is the engine compression correct? | Yes | Inspect the valve timing.
No | Inspect for causes.
29 | • Verify test results.

  - If normal, return to diagnostic index to service any additional symptoms.
  - If malfunction remains, inspect related Service Information and perform repair or diagnosis.

  • If vehicle is repaired, troubleshooting completed.
  • If vehicle is not repaired or additional diagnostic information is not available, replace or reprogram the PCM.