Toyota Camry (XV70): On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. OPERATION CHECK
(a) Slide the clip and disconnect the union to check valve hose from the vacuum pump assembly.
| (b) Connect the hose of the vacuum gauge to the vacuum pump assembly. |
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(c) Start the engine and warm it up for more than 2 minutes.
(d) With the engine idling, check the vacuum of the vacuum pump assembly.
Standard Pressure:
More than 86.7 kPa (650 mmHg, 25.6 in.Hg)
If the pressure is less than the standard, disassemble and inspect the vacuum pump. If necessary, replace the vacuum pump assembly.
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HINT:
Always perform this operation check procedure after replacing or servicing the vacuum pump assembly.
(e) Remove the vacuum gauge from the vacuum pump assembly.
(f) Connect the union to check valve hose to the vacuum pump assembly, and slide the clip to secure it.
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Removal
REMOVAL CAUTION / NOTICE / HINT
NOTICE: This procedure includes the removal of small-head bolts. Refer to Small-Head Bolts of Basic Repair Hint to identify the small-head bolts.
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Disassembly
DISASSEMBLY PROCEDURE 1. REMOVE END COVER
(a) To prevent the coupling of the vacuum pump assembly from contacting the workbench, support the vacuum pump assembly with wooden blocks or an equival
Reassembly
REASSEMBLY PROCEDURE 1. CLEAN VACUUM PUMP HOUSING
(a) Clean the inside surface of the vacuum pump housing. 2. INSTALL VACUUM PUMP ROTOR
(a) Clean the vacuum pump rotor. (b) Apply engine oil to the
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Installation
INSTALLATION PROCEDURE 1. INSTALL CHECK VALVE GROMMET
(a) Install a new check valve grommet to the brake booster assembly. 2. INSTALL VACUUM WARNING SWITCH ASSEMBLY
(a) Install the vacuum warning switch assembly to the brake booster assembly as shown in the illustration.
*a 30
Lost Communication with ECM/PCM "A" Missing Message (U010087)
DESCRIPTION The engine control unit and transmission control unit are located inside the ECM. The engine control unit intercommunicates with the transmission control unit using CAN communication.
If there is a problem in this intercommunication, the ECM stores this DTC.
DTC No. Detection I
