Disconnect the MAP sensor connector (A).

Remove the MAP sensor (B).
Install the parts in the reverse order of removal with a new O-ring (C).
Accessory Power Socket Test/Replacement
NOTE: If the accessory power socket does not work, check the No. 13 (20 A) fuse
in the under-dash fuse/relay box and ground (G502) first.
Remove the dashboard center lower trim.
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Map Scale Commands
Display north up
Display heading up
Display zoom in
Display zoom out
Display (specify scale):
1/20 mile (80 m) scale
1/8 mile (200 m) scale
1/4 mile (400 m) scale
1/2 mile (800 m) scale
1 mil ...
Rectifier Test
Check for continuity in each direction, between the B terminal and P terminals,
and between the E terminal and P terminals of each diode pair. All diodes should
have continuity in only one ...