LS 460 V8-4.6L (1UR-FSE) (2007)
a. Rotate the joint of the camshaft timing control motor assembly by hand.
Standard: Rotates smoothly.
NOTE:
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Do not drop the camshaft timing control motor assembly. If dropped, replace the camshaft timing control motor assembly.
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Do not disassemble the camshaft timing control motor assembly. If disassembled, replace the camshaft timing control motor assembly.
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Do not allow foreign matter to contact the oil seal face of the camshaft timing control motor (connecting surface with timing chain cover
sub-assembly).
If not as specified, replace the camshaft timing control motor assembly.
VVT Relay
ON-VEHICLE INSPECTION
1. REMOVE COWL TOP VENTILATOR LOUVER RH
2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL
CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt
pretensioner activation.
NOTE: After the engine switch is turned off, the HDD navigation system requires approximately 6 minutes to record various types of memory
and settings. As a result, after turning the engine switch off, wait 6 minutes or more before disconnecting the cable from the negative (-) battery
terminal.
3. REMOVE VVT RELAY (VVT RH, VVT LH)
a. Remove the VVT relay from the engine room No. 2 relay block.
4. INSPECT VVT RELAY
a. Measure the resistance of the VVT relay.
If the result is not as specified, replace the relay.
5. INSTALL VVT RELAY