INTAKE CAMSHAFT ADJUSTMENT VALVE BANK 1 CHECKING
Special tools and workshop equipment required
- Multimeter.
- Wiring diagram.
Test requirements
- Fuse -SB38- fuse OK.
- Battery voltage at least 12.5 volts.
- All electrical consumers such as, lights and rear window defroster, switched off.
- Vehicles with automatic transmission, shift selector lever into position "P" or "N".
- A/C switched off.
- Ground connections between engine/transmission/chassis OK.
- Ignition switched off.
Test procedure
Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .
Start diagnosis
Disconnect the Camshaft Adjustment Valve 1 -N205- electrical harness connector -3-.
Using a multimeter, check the Camshaft Adjustment Valve 1 -N205- for resistance.
Specified value: 5.0 to 8.0 ohms (at approx. 20°C)
If the specified value was Not obtained
Replace the Camshaft Adjustment Valve 1 -N205-.
If the specified value was obtained
Checking voltage
Switch the ignition On.
Using a multimeter, Check the Camshaft Adjustment Valve 1 -N205- electrical harness connector terminal 1 to the Power Supply Relay (terminal 30, B+) -J317- terminal 87 for voltage.
Switch the ignition Off.
Specified value: Battery voltage.
If the specified value was Not obtained
Check the Camshaft Adjustment Valve 1 -N205- electrical harness connector terminal 1 to the Power Supply Relay (terminal 30, B+) -J317- terminal 87 for an open circuit, high resistance, short circuit to Battery (+) or Ground.
Check the wiring connection for damage, corrosion, loose or broken terminals.
If necessary, repair the faulty wiring connection.
If the specified value was obtained
Checking wiring
If the manufacturers test box is being used. Perform the following step.
Install the test box.
If the manufacturers test box is not being used. Perform the following step.
Remove the Engine Control Module (ECM) -J623-. Refer to the Repair Information.
Using a multimeter, Check the Camshaft Adjustment Valve 1 -N205- electrical harness connector to the Engine Control Module (ECM) electrical harness connector T121 for resistance.
| Camshaft Adjustment Valve 1 -N205- electrical harness connector terminal | Engine Control Module (ECM) electrical harness connector T121 terminal or test box socket |
|---|---|
| 2 | 115 |
Specified value: 1.5 ohms Max.
If the specified value was Not obtained
Check the wiring connection for an open circuit, high resistance, short circuit to Battery (+) or Ground.
Check the wiring connection for damage, corrosion, loose or broken terminals.
If necessary, repair the faulty wiring connection.
If no malfunction is found in the wiring and voltage supply was not OK
Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
Perform a road test to verify repair.
If the DTC does not return
Generate readiness code. Refer to READINESS CODE .
If the DTC returns, no malfunction is found in the wiring and the voltage supply was OK
Replace the Engine Control Module (ECM) -J623-. Refer to the Repair Information.
Assembly is performed in the reverse of the removal.
Final procedures
After repair work, the following work steps must be performed in the following sequence
- Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(ref-475603-S16046050632012052300000) .
- If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(ref-475603-S07066265662012052300000) .
- If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(ref-475603-S08201758962012052300000) .
EXHAUST CAMSHAFT ADJUSTMENT VALVE BANK 1 CHECKING
Special tools and workshop equipment required
- Multimeter.
- Wiring diagram.
Test requirements
- Fuse -Sb38- fuse OK.
- Battery voltage at least 12.5 volts.
- All electrical consumers such as, lights and rear window defroster, switched off.
- Vehicles with automatic transmission, shift selector lever into position "P" or "N".
- A/C switched off.
- Ground connections between engine/transmission/chassis OK.
- Ignition switched off.
Test procedure
Perform a preliminary check to verify the customers complaint. Refer to PRELIMINARY CHECK .
Start diagnosis
Disconnect the Camshaft Adjustment Valve 1 (exhaust) -N318- electrical harness connector -4-.
Using a multimeter, check the Camshaft Adjustment Valve 1 (exhaust) -N318- for resistance.
Specified value: 5.0 to 8.0 ohms (at approx. 20°C)
If the specified value was Not obtained
Replace the Camshaft Adjustment Valve 1 (exhaust) -N318-.
If the specified value was obtained
Checking voltage
Switch the ignition On.
Using a multimeter, Check the Camshaft Adjustment Valve 1 (exhaust) -N318- electrical harness connector terminal 1 to the Power Supply Relay (terminal 30, B+) -J317- terminal 87 for voltage.
Switch the ignition Off.
Specified value: Battery voltage.
If the specified value was Not obtained
Check the Camshaft Adjustment Valve 1 (exhaust) -N318- electrical harness connector terminal 1 to the Power Supply Relay (terminal 30, B+) -J317- terminal 87 for an open circuit, high resistance, short circuit to Battery (+) or Ground.
Check the wiring connection for damage, corrosion, loose or broken terminals.
If necessary, repair the faulty wiring connection.
If the specified value was obtained
Checking wiring
If the manufacturers test box is being used. Perform the following step.
Install the test box.
If the manufacturers test box is not being used. Perform the following step.
Remove the Engine Control Module (ECM) -J623-. Refer to the Repair Information.
Using a multimeter, Check the Camshaft Adjustment Valve 1 (exhaust) -N318- electrical harness connector to the Engine Control Module (ECM) electrical harness connector T121 for resistance.
| Camshaft Adjustment Valve 1 (exhaust) -N318- electrical harness connector terminal | Engine Control Module (ECM) electrical harness connector T121 terminal or test box socket |
|---|---|
| 2 | 120 |
Specified value: 1.5 ohms Max.
If the specified value was Not obtained
Check the wiring connection for an open circuit, high resistance, short circuit to Battery (+) or Ground.
Check the wiring connection for damage, corrosion, loose or broken terminals.
If necessary, repair the faulty wiring connection.
If the specified value was obtained
Erase the DTC memory. Refer to DIAGNOSTIC MODE 04 - ERASE DTC MEMORY .
Perform a road test to verify repair.
If the DTC does not return
Generate readiness code. Refer to READINESS CODE .
If the DTC returns, no malfunction is found in the wiring and the voltage supply was OK
Replace the Engine Control Module (ECM) -J623-. Refer to the Repair information.
Assembly is performed in the reverse of the removal.
Final procedures
After repair work, the following work steps must be performed in the following sequence
- Check the DTC memory. Refer to «DIAGNOSTIC MODE 03 - READ DTC MEMORY»(ref-475603-S16046050632012052300000) .
- If necessary, erase the DTC memory. Refer to «DIAGNOSTIC MODE 04 - ERASE DTC MEMORY»(ref-475603-S07066265662012052300000) .
- If the DTC memory was erased, generate readiness code. Refer to «READINESS CODE»(ref-475603-S08201758962012052300000) .