Toyota 2002 Camry - Page 857

I31406
Wire Harness Side:
Connector ”A”
Connector ”B”
I31405
From Back Side:
Connector ”A”
Connector ”B”
55–4
–HEATER & AIR CONDITIONER AIR CONDITIONING SYSTEM
2319Author: Date:
2002 CAMRY REPAIR MANUAL (RM881U)
2. INSPECT AIR CONDITIONING CONTROL ASSY
(a) Disconnect the connector from controller and inspect the connector on wire harness side, as shown
in the chart.
Symbols
(Terminal No.)
Condition Specified condition
+B ⇔ GND
(A1 ⇔ A32)
Always 10 – 14 V
IG ⇔ GND
(A2 ⇔ A32)
Ignition switch: ON 0 → 10 – 14 V
GND ⇔ Body ground
(A32 ⇔ Body ground)
Always Continuity
If circuit is as specifies, try replacing the controller with a new one. If the circuit is not as specified, inspect
the circuits connected to other parts.
(b) Connect the connector to heater controller and inspect wire harness side from the back side, as shown
in the chart below.
Symbols
(Terminal No.)
Condition Specified condition
E ⇔ Body ground
(B1 ⇔ Body ground)
Always Continuity
LO ⇔ E
(B3 ⇔ B1)
Blower switch: OFF → LO 0 → Below 1.0 V
M1 ⇔ E
(B5 ⇔ B1)
Ignition switch: ON
Blower switch: OFF → M1
0 → Below 1.0 V
M2 ⇔ E1
(B6 ⇔ B1)
Ignition switch: ON
Blower switch: OFF → M2
0 → Below 1.0 V
HI ⇔ E1
(B7 ⇔ B1)
Ignition switch: ON
Blower switch: OFF → HI
0 → Below 1.0 V
REC ⇔ GND
(A10 ⇔ A32)
Ignition switch: ON
R/F switch: FRESH → RECIRCULATION
Open → Below 1.0 V
FRS ⇔ GND
(A11 ⇔ A32)
Ignition switch: ON
R/F switch: RECIRCULATION → FRESH
Open → Below 1.0 V