M
- 1 X 2
E120466E04
(a) Remove the HTR SUB1 relay from the engine room R/B.
(b) Remove the HTR SUB2 and HTR SUB3 relays from the engine room R/B No. 2.
(c) Turn the ignition switch ON.
(d) When the PTC heater operating conditions are met (engine at idling speed or faster, ambient temperature is 10°C (50°F) or less, engine coolant temperature is 65°C (149°F) or less, and No. 3 heater control knob setting is MAX HOT), turn the blower switch to the Lo setting.
(e) Wait 30 seconds.
(f) Measure the voltage. Standard voltage.
|
Tester Connection |
Specified Condition |
|
HTR SUB1-2 - Body ground |
11 to 14V |
|
HTR SUB2-2 - Body ground |
11 to 14V |
|
HTR SUB3-2 - Body ground |
11 to 14V |
(g) Reinstall the HTR SUB1 relay.
(h) Reinstall the HTR SUB2 and HTR SUB3 relays.
REPAIR OR REPLACE HARNESS OR CONNECTOR
CHECK HARNESS AND CONNECTOR (PTC HEATER RELAY - BODY GROUND)
Engine Room R/B:
HTR SUB1 Relay
|
X ? |
II |
- | ||
|
[ |
5 |
3 |
] | |
HTR SUB3 Relay HTR SUB2 Relay
|
3 | |
|
5 | |
|
1X |
2 |
E120466E04
(a) Remove the HTR SUB1 relay from the engine room R/B.
(b) Remove the HTR SUB2 and HTR SUB3 relays from the engine room R/B No. 2.
(c) Measure the resistance. Standard resistance
|
Tester Connection |
Specified Condition |
|
HTR SUB1-1 - Body ground |
Below 1 Q |
|
HTR SUB2-1 - Body ground |
Below 1 Q |
|
HTR SUB3-1 - Body ground |
Below 1 Q |
(d) Reinstall the HTR SUB1 relay.
(e) Reinstall the HTR SUB2 and HTR SUB3 relays.
REPAIR OR REPLAGE HARNESS OR GONNEGTOR
INSPECT PTC HEATER ASSEMBLY
|
Component Side: | ||
|
PTC Heater Assembly Connnector | ||
|
11 3 21 | ||
|
V |
I , ' ' , 1 | |
|
H |
E115947E03 | |
(a) Disconnect the A17 PTC heater assembly connector.
(b) Measure the resistance. Standard resistance
|
Tester Gonnection |
Specified Condition |
|
1 - 2 |
Below 1 Q |
|
1 - 3 |
Below 1 Q |
|
2 - 3 |
Below 1 Q |
(c) Reconnect the PTC heater assembly connector.
REPLACE PTC HEATER ASSEMBLY
CHECK HARNESS AND CONNECTOR (BATTERY - PTC HEATER RELAY)
Engine Room R/B:
HTR SUB1 Relay
|
X ? |
II | |||
|
[ |
5 |
3 |
] | |
HTR SUB3 Relay HTR SUB2 Relay
|
3 | |||||||||||||||||||||||||||||||||||||||||||||||
|
5 | |||||||||||||||||||||||||||||||||||||||||||||||
|
1X |
(a) Remove the HTR SUB1 relay from the engine room R/B. (b) Remove the HTR SUB2 and HTR SUB3 relays from the engine room R/B No. 2. (c) Measure the voltage. Standard voltage
(d) Reinstall the HTR SUB1 relay. (e) Reinstall the HTR SUB2 and HTR SUB3 relays. REPAIR OR REPLACE HARNESS OR CONNECTOR 
CHECK HARNESS AND CONNECTOR (PTC HEATER RELAY - PTC HEATER ASSEMBLY) Engine Room R/B: HTR SUB1 Relay
HTR SUB3 Relay HTR SUB2 Relay
Wire Harness Side: PTC Heater Assembly Connector s
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