Primary H02S (Sensor 1) Heater Circuit Malfunction; Secondary H02S (Sensor 2) Heater Circuit Malfunction - Honda 2002 Accord Manual

DTC P013S: Primary H02S (Sensor 1) Heater
Circuit Malfunction
DTC P0141: Secondary H02S (Sensor 2)
Heater Circuit Malfunction
NOTE: Information marked w i t h an asterisk ( * ) applies
t o DTC P0141.
1. Reset the ECM/PCM (see page 11-4).
2. Start the engine.
is DTC P0135 or P0141 indicated?
Y E S - G o to step 3.
NO—Intermittent failure, system is OK at this t i m e .
Cheek for poor connections or loose wires at C204
(located under the right side of the dash), C101,
C102 (located at the left side of the engine
compartment), the Primary H 0 2 S (Sensor 1), the
Secondary H 0 2 S (Sensor 2), and the ECM/PCM. •
3. Check the No. 6 ECU (ECM/PCM) CRUISE
CONTROL (15A) fuse in the driver's under-dash
fuse/relay box.
Is the fuse OK ?
Y E S - G o to step 4.
NO—Replace the fuse and retest.
4. Turn the ignition switch OFF.
5. Disconnect the H 0 2 S (Primary or Secondary * )
(Sensor 1 or Sensor 2 * ) 4P connector.
6. A t the H02S side, measure resistance between
H02S 4P connector terminals No. 3 and No. 4.
H02S 4P CONNECTOR
Wire side of female terminals
Is there 10- 40 Q (F23A4 SULEV engine: 2.0¬
20.0 Q)?
Y E S - G o to step 7.
N O - R e p l a c e the Primary H02S (Sensor 1) or
Secondary H02S (Sensor 2) * . •
7. Check for continuity between body ground and H02S
4P connector terminals No. 3 and No. 4 individually.
H02S 4P C O N N E C T O R
1 2
6
4
W i r e s i d e o f f e m a l e t e r m i n a l s
Is there continuity?
Y E S - Replace the H 0 2 S (Primary or Secondary * )
(Sensor 1 or Sensor 2 * ) . •
N O - G o t o step 8.
8. Turn the ignition switch ON (II).
9. Measure voltage between H02S 4P connector
terminals, No. 3 and No. 4.
P R I M A R Y / S E C O N D A R Y * H 0 2 S ( S E N S O R 1/
S E N S O R 2 * ) 4 P C O N N E C T O R
P 0 2 H T C
( B L K / W H T ) ,
S 0 2 H T C
( B L K / W H T ) *
IG1
( B L K / Y E L )
T e r m i n a l s i d e o f m a l e t e r m i n a l s
Is there battery voltage?
Y E S - G o t o step 10.
N O - G o t o step 13.
(cont'd)
1 1 - 6 7