|
No.
|
TECH 1 Display
|
Conditions for Checking
|
Nominal Value
|
Trouble Codes
|
Terminal
|
|
22
|
SEC.AIR PUMP REL
|
Engine running at idle speed, cold
|
ACTIVE
|
52, 53
|
A10
|
|
|
|
Engine running at idle speed,
operating temperature
|
INACTIVE
|
|
|
|
|
|
|
|
|
|
|
Notes on
Trouble-shooting:
|
Nominal
Value:
|
Cause of
fault:
(If nominal
value is not attained)
|
|
· Ignition OFF
· Disconnect from
base:
K12 secondary air injection relay
· Using
multimeter, measure voltage
from: K12 base of secondary air injection relay
Ter. 8
to: ground
|
higher than 11 V
|
· F49 fuse
defective
· Short circuit
to ground or circuit interruption
from: K12 base of secondary air injection relay
Ter. 8
to: battery +, Ter. 30
|
|
· Disconnect from
base:
K58 fuel pump relay
· Bridge wiring
harness plug
from: K58 base of fuel pump relay Ter. 2
to: K58 base of fuel pump relay Ter. 8
· Ignition ON
· Using
multimeter, measure voltage
from: K12 base of secondary air injection relay
Ter. 4
to: ground
|
higher than 11 V
|
· Check according
to data list no. 12 FUEL PUMP RELAY
|
|
· Using
multimeter, measure voltage
from: K12 base of secondary air injection relay
Ter. 6
to: ground
|
lower than 0.1 V
|
· Short circuit
to voltage
from: K12 base of secondary air injection relay
Ter. 6
to: K57 wiring harness plug for engine control
unit Ter. A10
· K57 engine
control unit defective
|
|
· Using
multimeter, measure voltage
from: K12 base of secondary air injection relay
Ter. 2 and Ter. 5
to: ground
|
lower than 0.1 V
|
· Short circuit
to voltage
from: K12 base of secondary air injection relay
Ter. 2 and Ter. 5
to: M27 secondary air injection pump
|
|
· Ignition OFF
· Using
multimeter, measure resistance:
from: K12 base of secondary air injection relay
Ter. 5
to: ground
|
lower than 2 W
|
· Circuit
interruption
from: K12 base of secondary air injection relay
Ter. 5
to: ground
|
|
· Connect test
lamp:
from: K12 base of secondary air injection relay
Ter. 4
to: K12 base of secondary air injection relay
Ter. 6
· Ignition ON
· Using
TECH 1, carry out:
5:ACTUATOR
TEST
SEC. AIR P.REL
|
Test lamp ON
|
· Short circuit
to ground or circuit interruption
from: K12 base of secondary air injection relay
Ter. 6
to: K57 wiring harness plug for engine control
unit Ter. A10
· K57 engine
control unit defective
|
|
· Ignition OFF
· Ignition ON
|
Test lamp OFF
|
|
|
· Bridge wiring
harness plug
from: K12 base of secondary air injection relay
Ter. 8
to: K12 base of secondary air injection relay
Ter. 2
|
M27 secondary air pump ON
|
· Short circuit
to ground or circuit interruption
from: K12 base of secondary air injection relay
Ter. 2
to: M27 secondary air pump
· Circuit
interruption
from: M27 secondary air pump
to: ground
· M27 secondary
air pump defective
|
|
Note:
If M27 secondary air pump does not operate, the thermal
protection switch inside the secondary air pump may have interrupted the
circuit.
|
|
|
If nominal values are attained
|
· K12 secondary
air injection relay defective
|
|
|
|
|
|
|
|
|
|
|
|
|
