Acura 2002 RSX Service Manual page 1218

Gauges
Gauge Assembly Replacement
1. Remove the drjver's dashboard lower cover (see
page 20-6'l). then remove the up'per column cover
{ s e e p a g e 1 7 - 2 5 ) .
2. Remove the two mounting screws from the gauge
assembly (A).
Disconnect the connectors (B), and remove the
gauge assembly.
Install the gauge assembly in the reverse o.der of
removal.
4 .
Coolant Temperature Gauge
Troubleshooting
Before testing, check the No. 9 (7.5A) fuse in the under-
dash fuse/relay box and the No. 10 (7.5A) fuse in the
under-dash fuse/relay box.
1 . S t a r t t h e e n g i n e , a n d c h e c k t h e M a l f u n c t i o n
I n d i c a t o r L a m p ( M l L ) .
Does the M lL come on?
YES Troubleshootthe cause ofthe ECM/PCM DTC
( s e e p a g e 1 1 - 6 1 ) , a n d r e c h e c k . I
NO Go to step 2.
2 . C h e c k f o r a m u l t i p l e x c o n t r o l u n i t D T C ( s e e p a g e
2 2 - 1 7 5 1 .
ls a DTC indicated?
YES Troubleshooting the cause ofthe multiplex
control unit DTC (see page 22-1751, and recheck.I
NO Go to step 3.
3. Do the communication line check with the self-
diagnosis procedure (see page 22-60).
ls the word "Errcr" indicated on the odo/trip
d isplay ?
YES The gauge cannot receive the signal fromthe
multiplex control unit and the ECM/PCM. Check for
an open in the WHT/GRN wire (gauge connector
t e r m i n a l 8 1 3 ) . I
NO - Go to step 4.
4. Does the gauge drive circuit check with the self-
diagnosis procedure {see page 22-60).
Dose the temperature gauge needle sweep frcm
the minimum position to the maximum, then teturn
to the minimum position?
YES Go to step 5.
N O R e p l a c e t h e g a u g e a s s e m b l y . l
5. Substitute a known-good ECM/PCM, and recheck.
Did the symptom/indication go away?
YES Replace the ECM/PCM.
NO Substitute a known-good gauge assembly. lf
the symptom/indication goes away, replace the
g a u g e a s s e m b l y . I
22-66